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1
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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ุณู„ุงู… ุนู„ูŠูƒู… ูˆุฑุญู…ุฉ ุงู„ู„ู‡
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ูˆุจุฑูƒุงุชู‡ ุงู„ูŠูˆู… ู‡ู†ูƒู…ู„ ุงู„ุดุงุจุชุฑ inertia forces of
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reciprocating parts ุจุนุฏูŠู† ู‡ุฏุฑุณู†ุง ุงู„ู„ูŠ ู‡ูˆ velocity
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displacement and acceleration analysis ู„ู„ slotted
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crank mechanism ุญุณุจู†ุง ุงู„ velocity ูˆ ุงู„
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acceleration ูˆ ุงู„ position ู„ู„ piston ุญุณุจู†ุง ุงู„
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angular velocity ูˆ ุงู„ angular acceleration ู„ู„
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connecting rod ุทุจุนุง ู‡ู†ุนุทูŠู†ุง ุญู„ูˆู„ ุชุญู„ูŠู„ูŠุฉ ุชู‚ุฑูŠุจูŠุฉ
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ุนู…ู„ู†ุง ุจุนุถ ุงู„ approximationsู‡ู†ูƒู…ู„ ู†ุญุณุจ ุงู„ forces
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ุนู„ู‰ ุงู„ู€ reciprocating parts of an engine ุงู†ุง
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ุนู†ุฏ ู‡ู†ุง ุงุณุชุฎุฏุงู… ุงู„ูƒุฑุงู†ูƒ ุนู†ุฏ ู‡ุงูŠ ู…ุฑูƒุฒ ุฏูˆุฑุงู† ุงู„ูƒุฑุงู†ูƒ
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ุงูˆ ู‡ุงูŠ ุงู„ูƒุฑุงู†ูƒ
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ูˆ ู‡ุงูŠ ุงู„ connecting rod ู‡ุฐู‡
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OC ูˆู‡ุฐู‡ ู†ู‚ุทุฉ P ูˆู‡ุฐู‡ ุงู„ piston
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ุงู„ูƒุฑุงูŠู†ูƒ
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ุจุฏูˆุฑ
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ุจุตูˆุฑุฉ ุนู„ู‰ ุงู„ุฒุงูˆูŠุฉ omega clockwise ุงู„ุฒุงูˆูŠุฉ ู…ุน ุงู„ุฃูู‚
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ู‡ุฐุง
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theta ูˆุงู„ุฒุงูˆูŠุฉ ุจูŠุตูˆูŠู‡ุง ุงู„ connecting rod ู…ุน ุงู„ุฃูู‚
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ู‡ุฐุง ุงู„ุฒุงูˆูŠุฉ ููŠ
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ุงู„ุงู† ู„ูˆ ุจุฏุฃ ุงุนู…ู„ force analysis ูˆ ุจุฏุฃุช ู…ู† ุนู†ุฏ ุงู„
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piston ู‡ูƒูˆู†
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ุนู†ุฏ ุงู„ piston ู‡ูŠู† ู‡ู†ู„ู‚ force analysis
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ู‡ูŠูƒูˆู† ููŠ ุนู†ุฏูŠ ู‡ูŠู† ุฌุงูŠ piston effort FP
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ููŠ ุนู†ุฏูŠ normal force ู‡ูŠู† ู…ู† ุงู„ุฌุฏุงุฑ ุจุชุงุน ุงู„ุฃุณุชูˆุงู†ุฉ
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F normal ูˆ ููŠ ุนู†ุฏูŠ ูˆุฒู† ุงู„ reciprocating parts
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ูˆ ููŠู‡ ุนู†ุฏู‰ force ู…ู†
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ุงู„ connecting rod ููŠ
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ู‡ุฐุง
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ุจุดูƒู„ ุฃุณุฆู„ุฉ ู„ูˆ ุฃุฎุฏุช ุงู„ piston ู„ูˆ ุฃุฎุฏุช ุงู„ connecting
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rod
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ุงุฎุฏุช ุงู„ู€ Connecting Rod ู„ุญุงู„ู‡
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ู‡ุฐุง
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ุงู„ู€ Connecting Rod ู‡ูƒูˆู† ููŠู‡ ุนู†ุฏู‡ ู‡ุฐุง
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ูŠุณู…ู‰ FQ ู‡ุฐู‡ FQ ู‡ุฐู‡
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ุฒุงูˆูŠุฉ ููŠ
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ุทุจุนุง ู‡ู†ุง ุงู†ุง .. I assume ุงู†ู‡ .. I assume ุงู†ู‡ ุงู„ ..
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I'm neglecting ุงู„ weight ู„ ุงู„ connecting rod ุงู„
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weight of connecting rod is neglected .. neglected
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ุชู… ุฅู‡ู…ุงู„ ูˆุฒู† ุงู„ connecting rod ูˆ it is two for
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swim ุจุฑุจุน ู†ุทูˆูŠุฉ ู‡ูŠูƒูˆู† ููŠ ุนู†ุฏูŠ ูƒู…ุงู† ู‡ู†ุง FQ
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ุฌุงูŠ ู…ู† ุงู„ crankุฌุง ุงุนู…ู„ ู„ูƒ ุฑุงู†ูƒ ุนู„ู‰ ุงู„ connecting
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rod ูŠุนู†ูŠ
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00:04:52,940 --> 00:05:06,660
ุนู†ุฏูŠ ู‡ูŠู† ุนู†ุฏูŠ ู‡ูŠู† FN ุนู†ุฏูŠ ู‡ูŠู† F piston effort ูˆ
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ุนู†ุฏูŠ ุงู„ูˆุฒู† of reciprocating parts WR
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ุงู„ piston effort ู‡ูˆ ุงู„ net force acting on the
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piston along the line of stroke ุงู„ piston effort
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ู‡ูˆ ุงู„ net force acting on the piston along the
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line of stroke ูŠุนู†ูŠ ููŠ ู‡ุฐุง ุงู„ุงุชุฌุงู‡ ู…ุตุฏุฑู‡ุง ุฌุงูŠ ู…ู†
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ุงู„ pressure ููŠ ุนู†ุฏ ุงู„ pressureุนู„ู‰ ุงู„ piston ุทุจุนุง
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ููŠู‡ ู‡ูŠู‚ุงู…ู‡ friction ู ุงู„ .. ุงู„ .. ุงู„ FP ุทุจุนุง
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ู‡ูŠู‚ุงู…ู‡ friction ูˆ inertia forces ู‡ูŠู‚ุงู…ู‡ friction ูˆ
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inertia forces ู‡ุฐุง ุงู„ piston ุงู„ู„ูŠ ุฃู†ุง ูƒู…ู„ู‡ ุนู†ุฏู‡ูŠู†
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00:06:03,850 --> 00:06:06,050
ุจูŠุตูŠุฑ ุจุงู„ุดูƒู„ ู‡ุฐุง
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00:06:11,870 --> 00:06:24,370
ุงู„ู„ูŠ ู‡ูŠ ู…ุซู„ุง ู‡ุญูƒูŠ mr ููŠ ุงู„ a ุจุชุงุนุฉ ุงู„ piston ุงูˆ
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00:06:24,370 --> 00:06:33,150
ูƒู†ุช ุงุญูƒูŠ ุจุงู„ุดูƒู„ ู‡ุฐุง ู‡ูŠ ุนู†ุฏูŠ ุงู„ piston ุนู„ูŠ
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fn ููŠ ูƒู…ุงู† friction resistance
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ูู‰ ุนู†ุฏู‰ FN FN
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ูˆุนู†ุฏู‰
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ุจุฏูŠ ุฃุณู…ูŠู‡ุง ู‡ู‰ F F ุงู„ load F ุงู„ load ูˆ ุจุญูƒูŠ ูˆุนู†ุฏูŠ
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ุงู„ inertia force ุงู„ู„ู‰ ู‡ู‰ MR A pistonุนู†ุฏูŠ FN ูˆ ุงู„ู€
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WR ูˆุนู†ุฏูŠ
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FQ
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ูˆุนู†ุฏูŠ
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ุงู„ู„ูŠ ู‡ูŠ ุงู„ frictional force ูŠุนู†ูŠ ููŠ ุนู†ุฏู‰ force due
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to load ุฌุงู…ุน ุงู„ pressure ุนู„ู‰ ุงู„ pistonูˆููŠ ุงู„
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inertia force mr ููŠ ุงู„ acceleration ูˆููŠ ุนู†ุฏู‰
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fractional force ูˆููŠ ุนู†ุฏู‰ ุงู„ normal force ู…ู† ุฌุฏุฑุงู†
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ุฃุณุทูˆุงู†ุฉ ูˆููŠ ุนู†ุฏู‰ ูˆุฒู† ุงู„ piston ูˆููŠ ุนู†ุฏู‰ ุงู„ู„ู‰ ู‡ูˆ ุงู„
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00:07:53,830 --> 00:07:56,890
force ู…ู† ุงู„ connecting rod ุนู„ู‰ ุงู„ piston
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00:08:03,400 --> 00:08:06,460
ูŠุนู†ูŠ ุญูƒูŠู†ุง ุงู„ .. ุงู„ .. ุงู„ .. ุงู„ FP ุงู„ piston
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effort ู‡ูŠ ุงู„ net force acting along the line of
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stroke ูŠุนู†ูŠ ุงู„ net force ุจูŠู‡ุฏู‰ ุงู„ุงุชุฌุงู‡ ู…ุนู†ุงุชู‡
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00:08:16,480 --> 00:08:26,200
ุงู„ FL ุงู„ .. ุงู„ .. ุงู„ piston effort ู‡ุชูƒูˆู† ุงู„
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piston effortู ุจูŠุณุชู…ุฑ ุฒูŠ ู‡ู‰ net force ุนุจุงุฑุฉ ุนู† ุงู„
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force due ุช ุงู„ fl ุฅุฐุง
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it is accelerating ู‡ุชูƒูˆู† minus ุฅุฐุง
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it is decelerating ู‡ุชูƒูˆู† plus minus ุงู„ inertia
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00:08:47,290 --> 00:08:52,250
force minus ุงู„ frictional force minus ุงู„
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00:08:52,250 --> 00:08:56,210
frictional force ู‡ู‰ RF ู‡ู†ุณู…ูŠู‡ุง
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RF ู‡ูŠู† RF ู…ุนู†ุงุชู‡ ู‡ุฐุง ุงู„ free body diagram ู‡ุฐุง ุงู„
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00:09:07,240 --> 00:09:12,000
original ู‡ุณูŠุฑ ุจุงู„ุดูƒู„
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ู‡ุฐุง ุงู„ู„ูŠ ู‡ูˆ ุงู„ piston effort ู„ุฃู† ู‡ุงูŠ ุงู„ piston
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00:09:16,600 --> 00:09:21,600
effort ุนุจุงุฑุฉ ุนู† net force ู†ุงุชุฌุฉ ุนู† ุงู„ load ูˆ ุงู„
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00:09:21,600 --> 00:09:27,660
energy ูˆ ุงู„ frictionู‡ุชูƒูˆู† ุนู†ุฏูŠ F piston F ุงู„
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00:09:27,660 --> 00:09:31,540
piston effort ูˆุนู†ุฏูŠ
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00:09:31,540 --> 00:09:34,780
ุงู„
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00:09:34,780 --> 00:09:47,040
F normal ูˆุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ WR ูˆุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูŠ F ููŠ Q
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00:09:47,040 --> 00:09:48,940
ูˆู‡ุฐุง ุงู„ุฒุงูˆูŠุฉ ุนูŠุงุด ููŠ
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00:09:59,710 --> 00:10:05,150
ู…ุนู†ุงุชู‡ ุงู† ุงู„ูƒุชุงุจ ู…ุด ู…ุงุถุญุฉ ุงู„ piston effort ููŠ
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00:10:05,150 --> 00:10:09,810
ุงู„ุฃุณุงุณ ููŠ ุงู„ free pedagram ุงู„ุฃุตู„ูŠ ุนุจุงุฑุฉ ุนู† ุงู„ load
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00:10:09,810 --> 00:10:15,130
due to pressure ูˆ ุงู„ inertia force ุงู„ mar ููŠ ุงู„ a
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00:10:15,130 --> 00:10:18,830
piston ูˆ ุงู„ frictional force ู…ุนู†ุงุชู‡ ุงู† ุงู„ piston
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00:10:18,830 --> 00:10:23,340
effort ู‡ูˆ ุงู„ net force ู…ุญุตู„ุฉ flูˆ ุงู„ inertia ูˆ ุงู„
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00:10:23,340 --> 00:10:27,080
friction force ุงู„ู„ูŠ ู‡ูŠ F P ุจูŠุณูˆุง F L minus plus F
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00:10:27,080 --> 00:10:30,080
I minus R F ูˆุงุถุญ ุงู†ู‡ ู„ู…ุง ูƒุงู† ุงู„ piston it is
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00:10:30,080 --> 00:10:34,460
accelerating along this direction ูƒุงู†ุช .. ูƒุงู†ุช ุงู„
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00:10:34,460 --> 00:10:37,640
inertia ุจุงู„ุงุชุฌุงู‡ ู‡ุฐุง ู…ุนู†ุงู‡ ุงู† ุงู„ inertia ุจุชุนูƒุณู†ูŠ
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00:10:37,640 --> 00:10:41,140
when it is accelerating ุนุดุงู† ูƒูŠ ุตุงุฑุช minus ุงุฐุง ูƒุงู†
100
00:10:41,140 --> 00:10:44,960
decelerating ู‡ูŠูƒูˆู† ุจูŠุณุงุนุฏู†ูŠ ู‡ูŠูƒูˆู† ุงู† ุฏูŠ ุจูŠุตูŠุฑ plus
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00:10:44,960 --> 00:10:46,880
F I minus R F
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00:10:50,500 --> 00:10:57,980
ุงู„ุงู† ุงู„ inertia force ุงู„ inertia force ุงู„ fi
103
00:10:57,980 --> 00:11:02,140
ู‚ูŠู…ุชู‡ุง ุจุชุณุงูˆูŠ
104
00:11:02,140 --> 00:11:12,660
ุงู„ mr ููŠ ุงู„ AP ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุงู„ mr ู‡ุงูŠ ุงู„ AP ู‡ุชูƒูˆู† mr
105
00:11:12,660 --> 00:11:24,120
ููŠ omega square r ููŠ cosine thetaุฒุงุฆุฏ cosine two
106
00:11:24,120 --> 00:11:34,160
theta ุนู„ู‰ n ู‡ุฐู‡ ุงู„ inertia force ู†ุนูˆุฏ ู„ู„ load
107
00:11:34,160 --> 00:11:34,760
force
108
00:11:52,710 --> 00:11:56,730
ููŠ ุญูŠุงุชูŠ ุงู„ engine ูƒุงู† ุฃูู‚ ูŠุนู†ูŠ ุงู„ piston ุจุชุชุญุฑูƒ
109
00:11:56,730 --> 00:11:59,930
ุจู‡ุฐุง ุงู„ุงุชุฌุงู‡ ู‡ุฐุง horizontal vertical ุงู„ piston
110
00:11:59,930 --> 00:12:01,090
ุจุชุชุญุฑูƒ ุจู‡ุฐุง ุงู„ุงุชุฌุงู‡
111
00:12:03,730 --> 00:12:06,570
the reciprocating parts are accelerated from rest
112
00:12:06,570 --> 00:12:10,830
when piston moves from inner dead center to outer
113
00:12:10,830 --> 00:12:14,090
dead center ูŠุนู†ูŠ ุจูŠูƒูˆู† ุงู„ acceleration ุงู„ู„ูŠ ุงู„
114
00:12:14,090 --> 00:12:16,770
piston ููŠ ุญุงู„ุฉ ุชุณุงุฑ ู„ู…ุง ุจุชุญุฑูƒ ู…ู† ุงู„ top dead
115
00:12:16,770 --> 00:12:19,570
center ู„ู„ bottom dead center ูŠุนู†ูŠ ู…ู† ุฃู‚ุตู‰ ู†ู‚ุทุฉ
116
00:12:19,570 --> 00:12:22,710
ู„ุฃุนู„ู‰ ู†ู‚ุทุฉ ุจูŠูƒูˆู† ููŠ acceleration ูˆ ุจูŠุตูŠุฑ ููŠ ุญุงู„ุฉ
117
00:12:22,710 --> 00:12:25,950
deceleration ู„ู…ุง ุจุชุญุฑูƒ ู…ู† ุงู„ bottom dead center ู„ู„
118
00:12:25,950 --> 00:12:27,270
top dead center
119
00:12:32,940 --> 00:12:36,060
ุงู„ inertia force due to acceleration of respondent
120
00:12:36,060 --> 00:12:44,040
parts ุจุชุนุงูƒุฒ ุงู„ force ุนู„ู‰ ุงู„ piston ุงู„ู„ูŠ ุจุชุนุงูƒุฒ ุงู„
121
00:12:44,040 --> 00:12:47,740
fl ู…ุนู†ุงุชู‡ ุงู† ุงู„ุญุงู„ุฉ ุงู„ู„ูŠ ุงุญู†ุง ุญุงูˆู„ู†ุง ุชูƒูˆู† minus fi
122
00:12:47,740 --> 00:12:50,400
ุงุฐุง ูƒุงู† ุนู†ุฏู‰ acceleration ุงุฐุง ูƒุงู† ุนู†ุฏู‰ retardation
123
00:12:50,400 --> 00:12:54,300
ูŠุนู†ูŠ ุนู†ุฏู‰ acceleration ุจุชุณุงุนุฏู†ูŠ ุจูŠุตูŠุฑ ุงู„ piston
124
00:12:54,300 --> 00:12:58,020
effort fl plus fi minus rf
125
00:13:01,800 --> 00:13:05,560
ุฒูŠ ู…ุง ุญูƒูŠู†ุง ุงู„ piston effort ู‡ูŠ ุงู„ net load on the
126
00:13:05,560 --> 00:13:10,060
piston ุงู„ู„ูŠ ู‡ูˆ ุนุจุงุฑุฉ ุนู† fl minus plus fi minus rf
127
00:13:10,060 --> 00:13:15,340
ุงู„ negative sign is used ููŠ ุญุงู„ุฉ ูƒู„ุงู† ุฏูŠ
128
00:13:15,340 --> 00:13:20,900
acceleration ุงู„ piston is accelerating ุจุชูƒูˆู† plus
129
00:13:20,900 --> 00:13:27,720
ููŠ ุญุงู„ุฉ ุงู„ piston is decelerating ุงู„
130
00:13:27,720 --> 00:13:28,400
F load
131
00:13:31,250 --> 00:13:35,570
ู„ูƒู† ุงู„ F load ุฌุงูŠุฉ ู†ุชูŠุฌุฉ ุงู„ pressure ู†ุชูŠุฌุฉ ุงู„
132
00:13:35,570 --> 00:13:40,850
pressure ู‡ุชูƒูˆู† ุงู„ F load ู‡ุงูŠ ุงู„ piston ู‡ุงูŠ ุงู„ุทุฑู
133
00:13:40,850 --> 00:13:44,750
ู„ู„ piston ูˆ ู‡ุงูŠ ุงู„ุทุฑู ููŠ ุนู†ุฏูŠ ู‡ุชุณู…ูŠู‡ุง area ุงู„ area
134
00:13:44,750 --> 00:13:57,270
ู‡ูŠู† ุจุชูƒูˆู† A1 ูˆ ุงู„ area ู‡ูŠู† A2 ุงู„ F L ู‡ุชูƒูˆู† A1
135
00:13:58,210 --> 00:14:07,910
P1 minus A2 P2 ุงู„ P1 ู‡ูˆ ุงู„ pressure ู…ูˆุงุฌู‡ ู…ุจุงุดุฑุฉ
136
00:14:07,910 --> 00:14:12,490
ู„ู„ piston ุงู„ P2 ู‡ูˆ ุงู„ pressure ุนูƒุณ ุงู„ piston ูŠุนู†ูŠ
137
00:14:12,490 --> 00:14:15,810
ููŠ ุญุงู„ุฉ double acting steam engine ุจูŠูƒูˆู† ููŠ
138
00:14:15,810 --> 00:14:24,570
pressure P1 ูˆ P2 ุทูŠุจ
139
00:14:33,030 --> 00:14:38,530
ููŠ ุญุงู„ุฉ vertical engine ูŠุนู†ูŠ ุงู„ piston ูƒุงู† ู…ุชุญุฑูƒ
140
00:14:38,530 --> 00:14:47,090
ุจุงู„ุงุชุฌุงู‡ ุงู„ุฑุฃุณูŠ ุงู„ weight of respectating parts
141
00:14:47,090 --> 00:14:54,760
ูˆุฒู† ุงู„ pistonุจุณุงุนุฏู†ูŠ ูˆ ุงู†ุง ู†ุงุฒู„ ูŠุนู†ูŠ ุฌุงูŠ ู…ู† ุงู„ top
142
00:14:54,760 --> 00:14:58,420
of the center ู„ ุงู„ุจุทู†ุณ ุจุณุงุนุฏู†ูŠ ูˆ ุจุนูƒุณู†ูŠ ูˆ ุงู†ุง ุทุงู„ุน
143
00:14:58,420 --> 00:15:02,160
ุจุนูƒุณู†ูŠ ูˆ ุงู†ุง ุทุงู„ุน ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุงู„ piston effort
144
00:15:03,050 --> 00:15:05,550
ูˆุงู†ุง ู†ุงุฒู„ ู…ู† ุงู„ top dead center ู„ู„ bottom dead
145
00:15:05,550 --> 00:15:10,230
center ุงู„ piston will be fl minus plus fi plus or
146
00:15:10,230 --> 00:15:16,030
minus wr minus rf ูˆุงู†ุง ู†ุงุฒู„ ุจูŠูƒูˆู† ุนู†ุฏู‰ plus wr
147
00:15:16,030 --> 00:15:20,870
ุจุชุนูƒุณู†ูŠ ุงู„ inertia force ูˆุจุณุงุนุฏู†ูŠ ูˆุฒู† ุงู„ piston ูˆ
148
00:15:20,870 --> 00:15:25,880
ุงู„ friction ุฏู‡ ุจูŠุนูƒุณู†ูŠ ูˆุงู†ุง ุทุงู„ุนุจูƒูˆู† ุนู†ุฏูŠ ุงู„
149
00:15:25,880 --> 00:15:30,660
inertia force ุจุชุณุงุนุฏู†ูŠ ูˆ ุงู„ูˆุฒู† ุจุชุงุน ุงู„ .. ุงู„ .. ุงู„
150
00:15:30,660 --> 00:15:34,520
.. ุงู„ piston ุจูŠุนูƒุณู†ูŠ ูˆ ุงู„ friction is always ุงู†ู‡ุง
151
00:15:34,520 --> 00:15:43,520
ุนูƒุณ ุงู„ู„ูŠ ุจุชุนูƒุณ ุชุฌุงู‡ ุงู„ุญุฑูƒุฉ ุทูŠุจ
152
00:15:43,520 --> 00:15:49,940
ู„ุงู†
153
00:15:49,940 --> 00:15:53,800
ุงู„ FQ ุงู†ุง ุนู†ุฏูŠ ู‡ู†ุง ุญูƒุงูŠุฉ ุงู†ุง ุนู†ุฏูŠ ู‡ู†ุง ู‡ุงูŠ
154
00:15:56,830 --> 00:16:06,650
ุงู„ู€ O ูˆู‡ูŠ ุงู„ C ู‡ุฐู‡ ุงู„ crank ูˆู‡ุฐู‡
155
00:16:06,650 --> 00:16:10,550
ุงู„ piston ู‡ุฐู‡
156
00:16:10,550 --> 00:16:18,170
P ู‡ู†ุง ุญูƒูŠู†ุง ุงู„ FQ ุงู„
157
00:16:18,170 --> 00:16:22,530
FQ ุจูŠุณุชูˆู‰ ุงู„ piston effort ุงู„ FQ
158
00:16:25,720 --> 00:16:29,960
ุจุณุชูˆู‰ ุงู„ piston effort ุงูˆ ู†ุญูƒูŠ ุงู„ููŠ ูƒูŠูˆ ูƒูˆุตูŠู†
159
00:16:29,960 --> 00:16:35,000
ุงู„ูุงูŠ ุงู„ููŠ ูƒูŠูˆ ูƒูˆุตูŠู†
160
00:16:35,000 --> 00:16:41,340
ุงู„ูุงูŠ ุจุณุชูˆู‰ ุงู„ piston effort ูŠุนู†ูŠ ุงู„ููŠ ูƒูŠูˆ ุจุณุชูˆู‰
161
00:16:41,340 --> 00:16:51,960
piston effort ุนู„ู‰ ูƒูˆุตูŠู† ุงู„ูุงูŠ ุงู„ุงู†
162
00:16:51,960 --> 00:16:53,080
ู‡ุฐู‡ ุงู„ููŠ ูƒูŠูˆ
163
00:16:56,480 --> 00:17:02,700
ู†ู‚ู„ุช ู„ู‡ู†ุง ุจุนุฏูŠู† ุญู„ู„ุช ู„ู‡ ู…ุฑุงูƒุจุฉ ุชุงู†ูŠุฉ ู…ุฑุงูƒุจุฉ ููŠ
164
00:17:02,700 --> 00:17:14,220
ุงุชุฌุงู‡ ุงู„ูƒุฑุงู†ูƒ FB ูˆู…ุฑุงูƒุจุฉ ุนู…ูˆุฏูŠุฉ ุนู„ู‰
165
00:17:14,220 --> 00:17:25,970
ุงู„ูƒุฑุงู†ูƒ FT ุงู„ุฒุงูˆูŠุฉ ู‡ุงุฏูŠุฉ ฮธูˆุงู„ุฒุงูˆูŠุฉ ู‡ุฐู‡ Phi ู…ุนู†ุงุชู‡
166
00:17:25,970 --> 00:17:32,010
ู‡ุฐู‡ ุงู„ุฒุงูˆูŠุฉ ู‡ุชูƒูˆู† ุฒุงูˆูŠุฉ ุฎุงุฑุฌ ุงู„ู…ุซู„ุซ Theta ุฒุงุฆุฏ Phi
167
00:17:32,010 --> 00:17:46,470
ุทูŠุจ
168
00:17:51,810 --> 00:17:57,330
ุงู„ุงู† FQ ุญู„ู„ุชู‡ุง ู„ู…ุฑูƒุจุชูŠู† ู…ุฑูƒุจุฉ ุนู…ูˆุฏูŠุฉ ุนู„ูŠ ุงู„ู€ crank
169
00:17:57,330 --> 00:18:10,370
ูˆ ู…ุฑูƒุจุฉ ููŠ ุงุชุฌุงู‡ ุงู„ crank ุงู„ F T ุจุงู„ุณุงูˆูŠุฉ
170
00:18:10,370 --> 00:18:15,410
ุงู„ FQ ุงู„
171
00:18:15,410 --> 00:18:19,770
F T ุจุงู„ุณุงูˆูŠุฉ ุงู„ FQ ุตูŠู†
172
00:18:22,660 --> 00:18:32,080
ุงู„ุซูŠุชุง ุฒุงุฆุฏ ููŠ ุตูŠู† ุงู„ุซูŠุชุง ุฒุงุฆุฏ
173
00:18:32,080 --> 00:18:36,100
ููŠ ุงู„
174
00:18:36,100 --> 00:18:44,480
FQ ุนุจุงุฑุฉ ุนู† FP ููŠ
175
00:18:44,480 --> 00:18:52,190
ุงู„ FQ FP ุนู„ู‰ ุงู„ุฌุฒุฑ ุงู„ุชุฑุจูŠุนูŠู„ูˆุงุญุฏ ู†ุงู‚ุต sin ุชุฑุจูŠุน ฮธ
176
00:18:52,190 --> 00:19:05,530
ุนู„ู‰ n ุชุฑุจูŠุน ููŠ sin ฮธ ุฒุงุฆุฏ ููŠ ูŠุนู†ูŠ
177
00:19:05,530 --> 00:19:18,290
ู‡ุชุณุงูˆูŠ ุงู„ FB ููŠ ู‡ุฐุง ู‡ุชูƒูˆู† sin ฮธ cosine ููŠุฒุงุฏ cos ฮธ
178
00:19:18,290 --> 00:19:34,990
sin ูู‰ ุนู„ู‰ cos ูู‰ ูŠุนู†ู‰ ุงู„ F T ู‡ุชุณูˆู‰ F P ููŠ sin ฮธ
179
00:19:34,990 --> 00:19:50,310
ุฒุงุฏ cos ฮธ ููŠ sin ูู‰ ุนู„ู‰ cos ูู‰ูŠุนู†ูŠ ู‡ุชุณุชูˆู‰ FP ููŠ
180
00:19:50,310 --> 00:20:04,990
sin ฮธ ุฒุงุฆุฏ cos ฮธ tan Phi ู„ุฃู† ุงุญู†ุง ู†ุฑุฌุน ู„ Phi ู‡ุงูŠ
181
00:20:04,990 --> 00:20:14,130
Phi ู‡ุงูŠ sin ฮธ ูˆู‡ุงูŠ N ู‡ุฐุง ุฌุฒุฑ ุงู„ุชุฑุจูŠุนูŠู„ุฃู† ุชุฑุจูŠุน
182
00:20:14,130 --> 00:20:23,570
ู†ุงู‚ุต sin ุชุฑุจูŠุน ุซุชุง ู…ุนู†ุงุชู‡ tan phi ู‡ุชูƒูˆู†
183
00:20:23,570 --> 00:20:29,930
ุชุณุงูˆูŠ sin ุซุชุง ุนู„ู‰
184
00:20:29,930 --> 00:20:37,410
ุฌุฒุฑ ุงู„ุชุฑุจูŠุน ู„ุฃู† ุชุฑุจูŠุน minus sin ุชุฑุจูŠุน ุซุชุง
185
00:20:44,600 --> 00:20:49,360
ุงู„ู€ FT ุจุชุณุงูˆูŠ
186
00:20:49,360 --> 00:21:02,600
ุงู„ FB ููŠ sin ฮธ ุฒุงุฏ cos ฮธ of tan phi ูŠุนู†ูŠ ู‡ูƒูˆู† cos
187
00:21:02,600 --> 00:21:13,310
ฮธ ููŠ sin ฮธุนู„ู‰ ุฌุฒุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ุงู† ุชุฑุจูŠุน minus sin
188
00:21:13,310 --> 00:21:32,990
ุชุฑุจูŠุน ุซุชุง ู‡ุฐุง ู‡ูˆ ุงู„ Ft ุงู„ุขู†
189
00:21:32,990 --> 00:21:41,810
ุงู„ Ftุงู„ู€ Torque ุงู„ F T ู‡ุชุนู…ู„ ุฅูŠู‡ุŸ ุงู„ Torque ู‡ูƒูˆู†
190
00:21:41,810 --> 00:21:49,070
ุงู„ radius ุชุงุน ุงู„ูƒุฑุงู†ูƒ ููŠ ุงู„ F T ูŠุนู†ูŠ ุงู„ Torque
191
00:21:49,070 --> 00:21:59,450
ู‡ูŠูƒูˆู† ุงู„ู„ูŠ ู‡ูˆ R F P ููŠ sin ฮธ ุฒุงุฏ
192
00:22:00,640 --> 00:22:04,480
Sin ฮธ ูƒูˆ Sin ุซุชุง ุนุจุงุฑุฉ ุนู† ุถุฑุจู†ุง ููŠ ุงุชู†ูŠุฉ ุนู„ู‰ ุงุชู†ูŠุฉ
193
00:22:04,480 --> 00:22:13,720
ู‡ุชูƒูˆู† Sin two theta ุนู„ู‰ ุงุชู†ูŠู† ุงุชู†ูŠู†
194
00:22:13,720 --> 00:22:22,000
ุงู„ุฌุฒุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ุงู† ุชุฑุจูŠุน minus Sin ุชุฑุจูŠุน ุซุชุง ู‡ุฐุง
195
00:22:22,000 --> 00:22:22,960
ูŠุนูŠุด ุงู„ torque
196
00:22:34,550 --> 00:22:55,810
ู„ูŠู‡ ู‡ุฐู‡ ุงู„ู…ุนุงุฏู„ุฉ ุทุจุนุง
197
00:22:55,810 --> 00:23:01,770
ู‡ู†ุนู…ู„ ุชู‚ุฑูŠุจุงู„ู€ sin ฮธ ู‚ูŠู…ุชู‡ุง ุชุชุฑุงูˆุญ ุจูŠู† ู…ุงูŠู†ูˆุณ ูˆุงุญุฏ
198
00:23:01,770 --> 00:23:04,450
ูˆ ูˆุงุญุฏ ู…ุนู†ุงุชู‡ sin ุชุฑุจูŠู‡ ุซุชุง ุงู„ maximum value ุงู„ู„ูŠ
199
00:23:04,450 --> 00:23:09,190
ู‡ุชูƒูˆู† ูˆุงุญุฏ ุงู„ N square ู‡ุชูƒูˆู† ุฃูƒุจุฑ ุจูƒุชูŠุฑ ู…ู† ุงู„ูˆุงุญุฏ
200
00:23:09,190 --> 00:23:14,070
ู…ู† ุงู„ sin ุชุฑุจูŠู‡ ุงู„ุซุชุง ู…ุนู†ุงุชู‡ ู‡ุฐู‡ ุจุชุตู ููŠ sin two
201
00:23:14,070 --> 00:23:19,650
theta ุนู„ู‰ ุงุชู†ูŠู† N ูุจุตู ููŠ ุงู„ torque ุชู‚ุฑูŠุจุง ุงู„
202
00:23:19,650 --> 00:23:24,630
torque ุชู‚ุฑูŠุจุง ุจุณุชูˆูŠ FPR ููŠ sin ุซุชุง ุฒุงุฆุฏ sin two
203
00:23:24,630 --> 00:23:36,620
theta ุนู„ู‰ ุงุชู†ูŠู† Nุญุตุฉ ูˆ ุญุตุงูุฉ ุงู„ู„ูŠ ู‡ูˆ FPR ููŠ sin ฮธ
204
00:23:36,620 --> 00:23:44,320
ุฒุงุฆุฏ sin 2ฮธ ุนู„ู‰ 2N
205
00:23:51,720 --> 00:24:00,380
ุงู„ุงู† ุงุญู†ุง ุญูƒูŠู†ุง ุงู† ุงู„ FQ ู‡ุนู…ู„ู‡ุง ู„ู…ุฑูƒุจุชูŠู† ู…ุฑูƒุจุฉ
206
00:24:00,380 --> 00:24:03,260
ุนู…ูˆุฏูŠุฉ ุนู„ูŠ ุงู„ crank ูˆู…ุฑูƒุจุฉ ููŠ ุงุชุฌุงู‡ ุงู„ crank ุงู„ FB
207
00:24:03,260 --> 00:24:09,780
ุงู„ู„ูŠ ู‡ูŠ ููŠ ุงุชุฌุงู‡ ุงู„ crank ู…ุฑูƒุจุฉ ุงู„ FQ FB ู‡ุชูƒูˆู† FQ
208
00:24:09,780 --> 00:24:18,720
ููŠ cosine theta ุฒุงุฆุฏ ููŠ ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุงู„ FQ ุนุจุงุฑุฉ ุนู†
209
00:24:18,720 --> 00:24:27,870
piston effortุนู„ู‰ cosine ุงู„ู€ phi ููŠ cosine theta
210
00:24:27,870 --> 00:24:41,930
ุฒุงุฆุฏ ููŠ ุงู„ู„ูŠ
211
00:24:41,930 --> 00:24:47,330
ู‡ูŠ ู‡ุฐู‡ ุงู„ู…ุนุงุฏู„ุฉุงู„ู€ Force ู…ุฑูƒุจุฉ ุงู„ู€ FQ ุจุงุชุฌุงู‡ ุงู„ู€
212
00:24:47,330 --> 00:24:51,670
Crank ู‡ูŠุจู‚ู‰ ุนู† FP ุนู„ู‰ ูƒุณุงู† 5 ูƒุณุงู† ุชุงุชู‡ ุฒุงุฆุฏ 5
213
00:24:51,670 --> 00:24:58,190
ู…ุนู†ุงุชู‡
214
00:24:58,190 --> 00:25:05,290
ู‡ุฏูˆู„ ู…ุนุฏู„ุงุช ู…ุนู†ุงุชู‡
215
00:25:11,760 --> 00:25:17,200
ุงู„ piston effort ุงู„ piston ุจุงุฎุชุตุงุฑ ุงู„ piston
216
00:25:17,200 --> 00:25:21,540
effort ุงู„ effort ุนู†ุฏ ุงู„ piston ุงู„ู„ูŠ ู‡ูŠ ุงู„ net
217
00:25:21,540 --> 00:25:28,960
force along ุงู„ line ูˆ ุงู„ stroke ุงู†ู‡ุง ุฌุนู„ ุงู„ load ูˆ
218
00:25:28,960 --> 00:25:37,280
ุงู„ inertia force ูˆ ุงู„ friction ุจุชุญูˆู„ ู„ torque
219
00:25:37,280 --> 00:25:43,570
ุงู„ุนุฒู…ุน ุงู„ูƒุฑุงู†ูƒ ุงู„ู„ูŠ ู‡ูŠ ู‚ูŠู…ุชู‡ ุงู„ torque FPR ููŠ sin
220
00:25:43,570 --> 00:25:48,930
theta ุฒูŠ sin theta ุนู„ู‰ ุงุชู†ูŠู† N ุฒุงุฆุฏ force ููŠ ุงุชุฌุงู‡
221
00:25:48,930 --> 00:25:55,610
ุงู„ูƒุฑุงู†ูƒ ุงู„ู„ูŠ ู‡ูŠ FB ุนุจุงุฑุฉ ุนู† FQ cosine theta ุฒุงุฆุฏ
222
00:25:55,610 --> 00:25:58,830
ููŠ ูˆ FQ FB ุนู„ู‰ cosine phi cosine theta ุฒุงุฆุฏ ููŠ
223
00:25:58,830 --> 00:26:06,150
ู†ุดูˆู
224
00:26:06,150 --> 00:26:07,470
ู…ุซู„ู‹ุง ู†ุญู„ ุฃู…ุซู„ุฉ
225
00:26:22,770 --> 00:26:26,250
Find the inertia force for the following data of
226
00:26:26,250 --> 00:26:29,670
an internal combustion engine ุงูˆ ุงู„ุงู†ูŠุฑุดุงููˆุฑุณ ุฏุง
227
00:26:29,670 --> 00:26:33,470
ุงู„ุจูŠุงู†ุงุช ุงู„ุชุงู†ูŠุฉ ู„ู„ู…ุญุฑูƒ ุงุญุชุฑุงูƒ ุฏุงุฎู„ูŠ ู…ุนุทูŠู†ูŠ ุงู„
228
00:26:33,470 --> 00:26:38,150
bore ุจุชุงุนุฉ ุงู„ piston ู…ูŠุฉ ูˆ ุณุจุนูŠู† ู…ู„ูŠ ู…ุชุฑ ูˆ ุงู„
229
00:26:38,150 --> 00:26:44,210
stroke ู…ุชูŠู† ู…ู„ูŠ ู…ุชุฑ ูˆ ุงู„ engine speed ุฎู…ุณู…ูŠุฉ rpm ูˆ
230
00:26:44,210 --> 00:26:48,840
ุงู„ length of connecting rod ุงุฑุจุนู…ูŠุฉ ู…ู„ูŠูˆ ุงู„ crank
231
00:26:48,840 --> 00:26:53,940
angle ุณุชูŠู† ุฏุฑุฌุฉ from inner dead center ูˆ ุงู„ mass
232
00:26:53,940 --> 00:26:57,600
of reciprocating parts ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠู† ูƒูŠู„ูˆ ุฌุฑุงู… ุงู„ุงู†
233
00:26:57,600 --> 00:27:03,480
ุงู„ inertia force ุจุณูˆุก
234
00:27:03,480 --> 00:27:08,100
mr ููŠ ุงู„ acceleration ุจุชุงุนุฉ ุงู„ piston ูŠุนู†ูŠ ู‡ุชูƒูˆู†
235
00:27:08,100 --> 00:27:17,630
mr acceleration ุจุชุงุน ุงู„ piston ู‡ูŠ omega squareR ุจ
236
00:27:17,630 --> 00:27:34,550
cos ฮธ ุฒุงุฏ cos 2ฮธ ุนู„ู‰ N ุงู„ุงู† ุงู„ MR ู…ุนุทูŠู†ูŠู‡ุง ุงู„ู„ูŠ ู‡ูŠ
237
00:27:34,550 --> 00:27:42,150
ูƒู… ูƒุจุช ุงู„ MRุŸ ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠู† ูƒูŠู„ูˆ ุฌุฑุงู… ูˆุงู„
238
00:27:42,150 --> 00:27:42,610
Omega
239
00:27:47,150 --> 00:27:54,910
ู…ุนุทูŠู†ูŠ ุงู„ุงู† ู‡ูˆ ู…ุนุทูŠู†ูŠ ุฎู…ุณู…ูŠุฉ ูู‰ ุงุชู†ูŠู† by ุน ุณุชูŠู†
240
00:27:54,910 --> 00:28:10,950
ูŠุนู†ูŠ ู„ูˆ ุญุณุจู†ุง ุฎู…ุณู…ูŠุฉ ูู‰ ุงุชู†ูŠู† by ุน ุณุชูŠู† ุฎู…ุณู…ูŠุฉ
241
00:28:10,950 --> 00:28:14,030
ูู‰
242
00:28:14,030 --> 00:28:21,610
ุงุชู†ูŠู† ูู‰ ุชู„ุงุชุฉ point ูˆุงุญุฏ ุงุฑุจุนุฉุชู‚ุณูŠู… ุณุชูŠู† ุชุทู„ุน
243
00:28:21,610 --> 00:28:25,790
ุงุชู†ูŠู† ูˆ ุฎู…ุณูŠู† point
244
00:28:25,790 --> 00:28:32,270
ุชู„ุงุชุฉ radian per second ู‡ุฐูŠ ุงู„ omega ุงู„
245
00:28:32,270 --> 00:28:36,710
R ู‡ูˆ ุงู„ rate of crank ุงู„ R ุจุงู„ุณุงูˆูŠ ุงู„ R ุนุจุงุฑุฉ ุนู†
246
00:28:36,710 --> 00:28:45,270
ุงู„ stroke ุนู„ู‰ ุงุชู†ูŠู† ุงู„ stroke ู…ุนุชู†ูŠู‡ุง ู…ุชูŠู† ุนู„ู‰
247
00:28:45,270 --> 00:28:47,710
ุงุชู†ูŠู† ู…ุงุฆุฉ millimeter
248
00:28:55,670 --> 00:29:02,470
ุงู„ุงู† ุงู„ู„ูŠ ู‡ูŠ ุงู„ L ุนู„ู‰ R ุงู„ู„ูŠ ุงู„ู…ุนุทูŠู†ูŠู‡ุง ุฃุฑุจุนู…ูŠุฉ
249
00:29:02,470 --> 00:29:11,970
ุนู„ู‰ ู…ูŠุฉ ุงู„ู„ูŠ ู‡ูŠ ุฃุฑุจุนุฉ ูˆู…ุนุทูŠู†ูŠ ุงู„ theta ุงู„ theta
250
00:29:11,970 --> 00:29:17,070
ู…ุนุทูŠู†ูŠู‡ุง ุณุชูŠู† ุฏุฑุฌุฉ ุณุชูŠู† ุฏุฑุฌุฉ ู…ุนู†ุงุชู‡ ุงู„ inertia
251
00:29:17,070 --> 00:29:23,490
force F Iู‡ุชูƒูˆู† ุงู„ MR ุงู„ู„ูŠ ู‡ูŠ ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠู† ููŠ ุงู„
252
00:29:23,490 --> 00:29:27,190
omega square ุงู„ู„ูŠ ู‡ูŠ ุงุชู†ูŠู† ูˆ ุฎู…ุณูŠู† point ุชู„ุงุชุฉ
253
00:29:27,190 --> 00:29:38,090
ุชุฑุจูŠุน ููŠ ุงู„ R point ูˆุงุญุฏ ููŠ ุงู„ cosine ุงู„ุณุชูŠู† ุฏุฑุฌุฉ
254
00:29:38,090 --> 00:29:47,430
ุฒุงุฏ cosine ุงู„ู…ูŠุฉ ูˆ ุนุดุฑูŠู† ุฏุฑุฌุฉ ุนู„ู‰ ุงุฑุจุนุฉ ูŠุนู†ูŠ ู‡ุชูƒูˆู†
255
00:29:47,430 --> 00:29:48,550
ุณูˆู‰ ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠู†
256
00:29:56,670 --> 00:30:04,310
ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠู† ููŠ ุงุชู†ูŠู† ูˆ ุฎู…ุณูŠู† point ุชู„ุงุชุฉ ุชุฑุจูŠุน ููŠ
257
00:30:04,310 --> 00:30:12,030
point one ุจุชู„ุน ุชุณุนุฉ ูˆ ุงุฑุจุนูŠู† ุงู„ู ูˆ ุงุชู†ูŠู† ูˆ ุฎู…ุณ ูˆ
258
00:30:12,030 --> 00:30:15,310
ุชู„ุงุชูŠู† cosine ุณุชูŠู† ุงู„ู„ูŠ ู‡ูŠ ู†ุต
259
00:30:19,630 --> 00:30:27,930
minus ู†ุต ุนู„ู‰ ุฃุฑุจุนุฉ minus point ูˆุงุญุฏ ุงุชู†ูŠู†
260
00:30:27,930 --> 00:30:37,430
ุฎู…ุณุฉ ูŠุนู†ูŠ ู†ุต
261
00:30:43,240 --> 00:30:48,300
ู†ู‚ุต point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ููŠ ุชุณุนุฉ ูˆุงุฑุจุนูŠู† ุงู„ู
262
00:30:48,300 --> 00:30:57,500
ูˆู…ุชูŠู† ูˆุฎู…ุณุฉ ูˆุชู„ุงุชูŠู† ุชุทู„ุน ุชู…ุงู†ุชุงุดุฑ ุงู„ู ุงุฑุจุนู…ูŠุฉ
263
00:30:57,500 --> 00:31:00,700
ูˆุชู„ุงุชุฉ ูˆุณุชูŠู† ู†ูŠูˆุชู†
264
00:31:02,750 --> 00:31:10,390
ูŠุนู†ูŠ ุชู‚ุฑูŠุจุง ุญูˆุงู„ ุงุชู†ูŠู† ุทู† ูŠุนู†ูŠ ูƒุฃู†ู‡ ุซู‚ู„ ุงุชู†ูŠู† ุทู†
265
00:31:10,390 --> 00:31:14,570
ูƒุฃู†ู‡ ุซู‚ู„ ุงุชู†ูŠู† ุทู† ูŠุนู†ูŠ ูˆุงุถุญ ุงู„ inertia forces is
266
00:31:14,570 --> 00:31:19,650
huge ูŠุนู†ูŠ ุจุชุดูƒู„ ุฑู‚ู… ูƒุจูŠุฑ ููŠ ุงู„ internal combustion
267
00:31:19,650 --> 00:31:25,670
engines ุทูŠุจ
268
00:31:25,670 --> 00:31:27,570
ู‡ูŠูƒ ุจูŠูƒูˆู† ุญุณุจู†ุง ุงู„ inertia force
269
00:31:31,990 --> 00:31:42,310
ู†ุดูˆู ู…ุซุงู„ ุชุงู†ูŠ The crank
270
00:31:42,310 --> 00:31:45,670
of a horizontal angel is three hundred millimeters
271
00:31:45,670 --> 00:31:50,570
ู†ุนุทูŠู‡ ุงู„ูƒุฑุงู†ูƒ ุงู„ R ุจุงู„ุณุงูˆูŠุฉ
272
00:31:50,570 --> 00:31:53,270
ุชู„ุงุชู…ูŠุฉ ู…ู„ูŠู…ุชุฑ
273
00:31:55,190 --> 00:31:58,190
the mass of reciprocating parts is ู…ุชูŠู† ูˆ ุฎู…ุณูŠู†
274
00:31:58,190 --> 00:32:02,790
kilogram ูŠุนู†ูŠ
275
00:32:02,790 --> 00:32:12,390
ุงู„ MR ู…ุนุทูŠู†ูŠ ู…ุชูŠู† ูˆ ุฎู…ุณูŠู† kilogram when
276
00:32:12,390 --> 00:32:15,090
the crank has traveled six degrees from inner dead
277
00:32:15,090 --> 00:32:19,870
center theta ุจุงู„ุณุงูˆุฉ
278
00:32:19,870 --> 00:32:29,830
ุณุชูŠู† ุฏุฑุฌุฉุงู„ุงุฎุชู„ุงู ุจูŠู† ุงู„ุณุฑุนุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
279
00:32:29,830 --> 00:32:32,650
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
280
00:32:32,650 --> 00:32:33,530
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
281
00:32:33,530 --> 00:32:33,830
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
282
00:32:33,830 --> 00:32:33,870
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
283
00:32:33,870 --> 00:32:35,650
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
284
00:32:35,650 --> 00:32:40,290
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
285
00:32:40,290 --> 00:32:40,350
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
286
00:32:40,350 --> 00:32:42,910
ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช ูˆุงู„ุฏุฑุงุฌุงุช
287
00:32:42,910 --> 00:32:43,090
ูˆุงู„ุฏุฑุงุฌ
288
00:32:47,170 --> 00:32:52,070
ุงู„ู‚ุทุฑ ุงู„ุชูˆุงุตู„ ุจูŠู† ู…ุฑูƒุฒู‡ุง ู‡ูˆ 1.2 ู…ุชุฑ ุทูˆู„ ุงู„ู€
289
00:32:52,070 --> 00:33:00,550
connecting road ูˆุงุญุฏ ุงุชู†ูŠู† ูˆุนุดุฑุฉ ู…ุชุฑ ุงู„ู€
290
00:33:00,550 --> 00:33:07,330
cylinder bore ุงู„ู„ูŠ ู‡ูˆ ุงู„ู‚ุทุฑ ุงู„ cylinder ุงู„ู„ูŠ ู‡ูˆ ู†ุต
291
00:33:07,330 --> 00:33:14,010
ู…ุชุฑ ุงุฐุง
292
00:33:14,010 --> 00:33:18,050
ูƒุงู†ุช ุงู„ุณูŠุงุฑุฉ ุชุนู…ู„ ููŠ 250 ุฑุจูŠุงู…ุงู„ุงู†ุฌูŠู† ุงู„ุงู† ุจุชุงุนุฉ
293
00:33:18,050 --> 00:33:25,570
ุงู„ุงู†ุฌูŠู† ู…ุชูŠู† ูˆ ุฎู…ุณูŠู† rpm and
294
00:33:25,570 --> 00:33:29,450
if the effects of piston rod is neglected ุงู„
295
00:33:29,450 --> 00:33:36,090
piston rod ุงู„ู„ูŠ ู‡ูˆ ู…ู† ุฌู‡ุฉ ุงู„ connecting rod ู‚ุทุฑู‡
296
00:33:36,090 --> 00:33:43,030
ุชู… ุงู‡ู…ู„ู‡ ุจุฏูƒ ุชุญุณุจ piston effort ุงู„ุนูƒุณ ู‡ุฐุง ุงู„
297
00:33:43,030 --> 00:33:43,750
piston effort
298
00:33:46,530 --> 00:33:50,610
ู‡ูˆ ุงู„ net force along the line of stroke ุนุจุงุฑุฉ ุนู†
299
00:33:50,610 --> 00:34:02,930
ุงู„ fl minus ุงูˆ ุฒุงุฆุฏ ุงู„ inertia force ุงู„ู„ูŠ
300
00:34:02,930 --> 00:34:06,970
ู‡ูˆ ุญุท ุฑุงุญ ู…ู†ู‡ุง ูƒู…ุงู† minus ุงู„ friction ุนู„ู‰ ูุฑุถ ุชู…
301
00:34:06,970 --> 00:34:13,550
ู‡ู… ุงู„ friction ู‡ุงูŠ ุงู„ piston effort ู†ุฑุฌุนู„ู‡ุง minus
302
00:34:13,550 --> 00:34:19,430
ุงู„ friction horizontal minusุงู„ู€ RF ู„ู€ friction
303
00:34:19,430 --> 00:34:30,690
ุงู„ุงู† ุงู„ load FL ู‡ุชูƒูˆู† ุณูˆุงุก ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ู…ุณุงุญุฉ
304
00:34:30,690 --> 00:34:41,150
ุงู„ู…ู‚ุทุน ุฏูŠ ุชุฑุจูŠุน ููŠ delta P ูŠูƒูˆู† ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ููŠ
305
00:34:41,150 --> 00:34:50,080
ุฏูŠ ุชุฑุจูŠุน ููŠ point ุฎู…ุณุฉุชุฑุจูŠุฉ ููŠ
306
00:34:50,080 --> 00:35:04,060
ุฏู„ุชุง ุจูŠุจูˆู† ุชู„ุงุชุฉ ุฎู…ุณุฉ ููŠ ุนุดุฑุฉ ูˆุณุชุฉ
307
00:35:04,060 --> 00:35:08,200
ูŠุนู†ูŠ
308
00:35:08,200 --> 00:35:12,720
ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ููŠุจูˆู†
309
00:35:12,720 --> 00:35:15,280
ุฎู…ุณุฉ
310
00:35:19,940 --> 00:35:31,360
ุชู‚ุฑูŠุจุง ุชู„ุงุชุฉ ุฎู…ุณุฉ ุจูŠุทู„ุน
311
00:35:31,360 --> 00:35:38,900
ุชู…ุงู†ูŠุฉ ูˆุณุชูŠู† ุฃู„ู ุชู…ุงู†ูŠุฉ ูˆุณุชูŠู† ุฃู„ู ูˆุณุชู…ูŠุฉ
312
00:35:38,900 --> 00:35:42,540
ูˆ ุชู…ุงู†ูŠุฉ ุชู…ุงู†ูŠู† ู†ูŠูˆุชู†
313
00:35:47,870 --> 00:35:58,390
ุงู„ู€ F ุงู„ inertia force ุจุงู„ุณุงูˆูŠุฉ ู… R ุฃู…ูŠุฌุง ุณูƒูˆูŠุฑ R
314
00:35:58,390 --> 00:36:10,570
ููŠ cos ฮธ ุฒุงุฏ cos 2 ฮธ ุนู„ู‰ N ุงู„ ู… R ุฃู†ุง ุนู†ุฏูŠ 250
315
00:36:10,570 --> 00:36:24,620
ู…ุนุฑูˆูุฉ ุงู„ุฃู…ูŠุฌุง ู‡ุชูƒูˆู† ุนู†ุฏูŠ 250ุงุชู†ูŠู† ุจุงูŠ ุนู„ู‰ ุณุชูŠู†
316
00:36:24,620 --> 00:36:36,960
ุชุทู„ุน
317
00:36:36,960 --> 00:36:44,500
ุณุชุฉ ูˆุนุดุฑูŠู† point ูˆุงุญุฏ ุณุจุนุฉ radian per second ู‡ุฐุง
318
00:36:44,500 --> 00:36:54,240
ุงู„ omegaุงู„ R ู…ุงุนุทูŠู†ูŠู‡ุง ุชู„ุงุชู…ูŠุฉ ู…ู„ูŠ ุงู„ N ุงู„ู„ูŠ ู‡ูŠ L
319
00:36:54,240 --> 00:37:00,740
ุนู„ู‰ R ุงู„ L ู…ุงุนุทูŠู†ูŠู‡ุง ูˆุงุญุฏ ูˆ ุงุชู†ูŠู† ู…ู† ุนุดุฑุฉ ูˆุงู„ R
320
00:37:00,740 --> 00:37:08,200
ุชู„ุงุชุฉ ู…ู† ุนุดุฑุฉ ูŠุนู†ูŠ ุฃุฑุจุนุฉ ุงู„ N ุงู„ู…ู†ุทู‚
321
00:37:08,200 --> 00:37:15,600
ุงู„ FI ู‡ุชูƒูˆู† ุงู„ MR ุงู„ู„ูŠ ู‡ูŠ ู…ุชูŠู† ูˆ ุฎู…ุณูŠู†
322
00:37:18,790 --> 00:37:22,270
ููŠ ุงู„ู€ omega ุงู„ู„ูŠ ู‡ูŠ ุณุชุฉ ูˆุนุดุฑูŠู† point ูˆุงุญุฏ ุณุจุนุฉ
323
00:37:22,270 --> 00:37:33,050
ุชุฑุจูŠุฉ ููŠ ุงู„ R ุงู„ู„ูŠ ู‡ูŠ point ุชู„ุงุชุฉ ููŠ cosine ุงู„ุณุชูŠู†
324
00:37:33,050 --> 00:37:40,710
ุฒุงุฆุฏ cosine ุงู„ู…ูŠุฉ ูˆุนุดุฑูŠู† ุนู„ู‰ ุฃุฑุจุนุฉ
325
00:37:51,140 --> 00:38:09,500
ู‡ุชูƒูˆู† ุนู†ุฏ ู…ุฆุชูŠู† ูˆ ุฎู…ุณูŠู† ุจุชุทู„ุน
326
00:38:09,500 --> 00:38:13,920
ุชุณุนุชุงุดุฑ ุงู„ู ูˆ
327
00:38:13,920 --> 00:38:21,200
ู…ุชูŠู† ูˆ ุงุชู†ูŠู† ูˆ ุณุชูŠู†ุงู„ู†ูŠูˆุชู† ู‡ุฐู‡ ุงู„ energy force
328
00:38:21,200 --> 00:38:31,320
ุทุจุนุง ู‡ู†ุง let assume ุงู† ุฑู ู…ู‡ู…ู„ุฉ ุชู‚ุฑูŠุจุง ุจุงู„ุณุงุนุฉ ุณูุฑ
329
00:38:31,320 --> 00:38:38,940
ู…ุนู†ุงุชู‡ ุงู„ piston effort ู‡ูŠ ุณุงูˆูŠ ุงู„ fl ุงู„ู„ูŠ ู‡ูˆ
330
00:38:38,940 --> 00:38:45,600
ุชู…ุงู†ูŠุฉ ูˆ ุณุชูŠู† ุงู„ู ูˆ ุณุชู…ูŠุฉ ูˆ ุชู…ุงู†ูŠุฉ ูˆ ุชู…ุงู†ูŠู†ุงู„ุงู†
331
00:38:45,600 --> 00:38:48,680
ุงุญู†ุง ุณุชูŠู† ุฏุฑุฌุฉ ููŠ ุงู„ู…ุตุฏุฑ ุงู„ู…ุนู†ุงุชู‡ x ุฏุฑุฌุฉ ู…ุงู‡ูŠ ุชูƒูˆู†
332
00:38:48,680 --> 00:38:53,520
minus ู‡ู†ุชุฑุงุญ minus ุณุชุฉ ุนุดุฑ ุงู„ู ุงุชู†ูŠู† ุณุชุฉ ุงุชู†ูŠู†
333
00:38:53,520 --> 00:38:58,940
ูŠุนู†ูŠ ู‡ุชูƒูˆู† piston effort ุชู…ุงู†ูŠุฉ
334
00:38:58,940 --> 00:39:04,880
ุณุชูŠู† ุงู„ู ุณุชุฉ ุชู…ุงู†ูŠุฉ ุชู…ุงู†ูŠุฉ ู…ุงุนูƒุณ ุณุชุฉ ุนุดุฑ ุงู„ู ุงุชู†ูŠู†
335
00:39:04,880 --> 00:39:11,440
ุณุชุฉ ุงุชู†ูŠู† ุชุทู„ุน ุชุณุนุฉ ูˆ ุนุฑุจูŠู† ุงู„ู ุงุฑุจุนู…ูŠุฉ ูˆ ุณุชุฉ ูˆ
336
00:39:11,440 --> 00:39:13,380
ุนุดุฑูŠู† ู†ูŠูˆุชุฑ ู‡ุฐุง ุงู„ piston effort
337
00:39:22,400 --> 00:39:30,640
ุจุฏูˆ ุงู„ thrust in connecting rod ูŠุนู†ูŠ ุจุฏู‡ FQ FQ
338
00:39:30,640 --> 00:39:37,380
ุจูŠุณุงูˆุฉ
339
00:39:37,380 --> 00:39:41,460
FB ุนู„ู‰ cos ู
340
00:39:51,420 --> 00:40:00,340
ุจุณ ุงุญู†ุง ุจู†ุนุฑู ุตูŠู† ุงู„ูุงู‰ ุจุตูˆุงู‡ ุตูŠู† ุซูŠุชุง ุนู„ู‰ ุงู† ูŠุนู†ูŠ
341
00:40:00,340 --> 00:40:04,180
ุตูŠู†
342
00:40:04,180 --> 00:40:15,360
ุงู„ุณุชูŠู† ุนู„ู‰ ุฃุฑุจุนุฉ ูˆู…ู†ู‡ุง ุจุญุณุจ ุงู„ุซูŠุชุง
343
00:40:15,360 --> 00:40:18,360
ุจุญุณุจ ุงู„ุซูŠุชุง
344
00:40:25,060 --> 00:40:26,460
ู…ุด ุนุงุฑู ูƒุฏู‡
345
00:41:13,570 --> 00:41:19,650
ุทูŠุจ ุทูŠุจ ุจุญุณุจ ู…ู†ู‡ุง ุงู„ theta ุจุนุฏ .. ุจุญุณุจ ุงู„ .. ุงู„ ..
346
00:41:19,650 --> 00:41:26,850
ุจุญุณุจ ุงู„ five ู…ุด ุงู„ theta ู…ู†ู‡ุง ุจุญุณุจ ุงู„ five ุจุนุฏ
347
00:41:26,850 --> 00:41:31,650
ุจุญุณุจ ุงู„ F cube ุงุฐุง ูˆ F P ุนู„ู‰ cosine ุงู„ five F cube
348
00:41:31,650 --> 00:41:35,730
ุงุฐุง ูˆ F P ุนู„ู‰ cosine ุงู„ five ุจุฏู†ุง ู†ุญุณุจ ุงู„
349
00:41:35,730 --> 00:41:39,690
tangential force ุงู„ F T ุงู„ F T
350
00:41:50,000 --> 00:41:59,520
ุงู„ู€ FT ู‡ุงูŠ ู…ุนุงุฏู„ุฉ ุงู„ู€ FT ุงู„
351
00:41:59,520 --> 00:42:05,580
FT ุงู„ู„ูŠ ู‡ูŠ F ุจุงู„ุณุงูˆูŠุฉ FP
352
00:42:05,580 --> 00:42:08,820
SIN
353
00:42:08,820 --> 00:42:19,830
ุซุชุง ุฒุงุฆุฏ ููŠุนู„ู‰ cosine ููŠ ุฃู†ุง ุนุงุฑู ุงู„ FB ูˆุนุงุฑู ุงู„
354
00:42:19,830 --> 00:42:23,650
theta ุงู„ู„ูŠ ู‡ูŠ ุดุชูŠู† ูˆุนุงุฑู ุงู„ ููŠ ุงู„ู„ูŠ ุญุณุจุชู‡ ุจุญุณุจ ุงู„
355
00:42:23,650 --> 00:42:35,390
FT ูˆ ุจุนุฏูŠู† ุจุฏู‡ ุงู„ torque T ุจุณูˆุก R ููŠ ุงู„ FT ุจุณูˆุก R
356
00:42:35,390 --> 00:42:39,800
ููŠ ุงู„ FTุงู„ู€ crank and connecting rod of a petrol
357
00:42:39,800 --> 00:42:45,300
engine turning at 1800 rpm ุนู†ุฏ ุงู„ petrol engine
358
00:42:45,300 --> 00:42:53,800
ุณุฑุนุฉ ุงู„ู…ุญุฑูƒ ุชุจุนุชู‡ ุฃู† ุงู„ู ุชู…ุงู†ูŠุฉ ุฏูˆุฑุฉ ููŠ ุงู„ุฏู‚ูŠู‚ุฉ
359
00:42:53,800 --> 00:43:02,040
ู…ุงุชูŠู† ุทูˆู„ ุงู„ crank ุงู„ R ุฎู…ุณูŠู† ู…ูŠู„ูŠ ูˆุทูˆู„ ุงู„
360
00:43:02,040 --> 00:43:08,560
connecting rod ุงู„ูุชูŠู† ู…ูŠู„ูŠ ู…ุชุฑูŠุนู†ูŠ automatic ู‡ุญุณุจ
361
00:43:08,560 --> 00:43:15,760
ู„ู„ุงู† ุจุงู„ุณุงูˆูŠุฉ L ุนู„ู‰ R ุงู„ู„ูŠ ู‡ูŠ 200 ุนู„ู‰ 50 ุจุงู„ุณุงูˆูŠุฉ
362
00:43:15,760 --> 00:43:19,420
ุฃุฑุจุนุฉ The
363
00:43:19,420 --> 00:43:22,780
diameter of the piston is eighty millimeters ู‚ุทุฑ
364
00:43:22,780 --> 00:43:31,820
ุงู„ piston ุฏูŠ ุจุงู„ุณุงูˆูŠุฉ ุชู…ุงู†ูŠู† ู…ู„ูŠู…ุชุฑ The mass of
365
00:43:31,820 --> 00:43:37,860
reciprocating parts is one kilogram ุงู„ MRู…ุณุง ูˆุงุญุฏ
366
00:43:37,860 --> 00:43:43,620
point ุงูˆ ูƒูŠู„ูˆ gram at a point during the power
367
00:43:43,620 --> 00:43:48,720
stroke ููŠ ู„ุญุธุฉ ููŠ ุงู„ power stroke pressure in
368
00:43:48,720 --> 00:43:51,500
piston is point ุณุจุนุฉ ู†ูŠูˆุชู† ุน ุงู„ millimeter square
369
00:43:51,500 --> 00:43:56,200
pressure on piston ูƒุงู† ุฏู‡ ุงู„ pressure ุนู„ู‰ ุงู„
370
00:43:56,200 --> 00:43:56,540
piston
371
00:44:02,290 --> 00:44:14,050
ุงู„ุจุดุฑ P ุจุงู„ุณุจุจ ู‡ูˆ ุณุจุนุฉ ุฃู…ูŠุฌุง ุจุงุณูƒุงู„ุฉ When it has
372
00:44:14,050 --> 00:44:17,410
moved ten millimeters from inner dead center ูŠุนู†ูŠ
373
00:44:17,410 --> 00:44:23,310
ุงุชุญุฑูƒ ู…ู† ู…ุณุงูุฉ ุนุดุฑุฉ ู…ู„ูŠู…ุชุฑ ูŠุนู†ูŠ X ุจุงู„ุณุงูˆูŠุฉ ุนุดุฑุฉ
374
00:44:23,310 --> 00:44:28,890
ู…ู„ูŠู…ุชุฑ Determine
375
00:44:28,890 --> 00:44:36,880
net load on GadjonPin ุจุฏูƒ ุชุญุณุฑ ูŠุนู†ูŠ ุจุฏูƒ ุชุญุณุฑ ุงู„
376
00:44:36,880 --> 00:44:47,820
piston effort ุจุฏูƒ ุชุญุณุฑ ุงู„ piston effort ู‡ุฐุง
377
00:44:47,820 --> 00:44:48,520
ุงู„ู…ุทู„ูˆุจ ุงู„ุฃูˆู„
378
00:44:54,500 --> 00:44:57,300
ุญูƒูŠู†ุง ุงู„ piston effort ู‡ูˆ ุงู„ net load ุงู„ piston
379
00:44:57,300 --> 00:45:05,500
effort ุงู„ F P ุจูŠุณุชูˆู‰ F L minus ุงูˆ ุฒุงุฏ ุงู„ inertia
380
00:45:05,500 --> 00:45:11,460
force minus ุงู„ friction force let us assume ุงู† ุงู„
381
00:45:11,460 --> 00:45:19,880
R F ุชู‚ุฑูŠุจุง is neglectedุŒ zero ู…ุนู†ุงุชู‡ ู‡ุชุตูŠุฑ ู‡ุฐู‡ F L
382
00:45:19,880 --> 00:45:23,560
minus or plus ุงู„ inertia force
383
00:45:29,220 --> 00:45:35,720
ุทูŠุจ ุงู„ fl ู‡ุชูƒูˆู† ุณูˆุงุก ู…ุณุงุญุฉ ู…ู‚ุทุน ุงู„ piston ุจุงูŠ ุนู„ู‰
384
00:45:35,720 --> 00:45:41,580
ุฃุฑุจุน ุฏูŠ square ููŠ ุงู„ pressure ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุงู† ุงู„ ุจุงูŠ
385
00:45:41,580 --> 00:45:48,440
ุนู„ู‰ ุฃุฑุจุน ููŠ ุฏูŠ ุงู„ู‚ุทุฑ
386
00:45:48,440 --> 00:45:54,600
ุงู„ุชู…ุงู†ูŠู† millimeter ููŠ ุชู…ุงู†ูŠู† ุชุฑุจูŠุฉ ููŠ bond ุณุจุนุฉ
387
00:45:55,940 --> 00:46:04,860
ุนุณุจู†ุง ุงู„ุฃูู‚ุงู„ ูŠุนู†ูŠ
388
00:46:04,860 --> 00:46:18,540
ุนู†ุฏูŠ five ุนู„ู‰ ุฃุฑุจุนุฉ ุชุทู„ุน
389
00:46:18,540 --> 00:46:23,920
ุชู„ุช ุชู„ุงู ูˆุฎู…ุณู…ูŠุฉ ูˆุณุจุนุชุงุดุฑ ุชู„ุช ุชู„ุงู ูˆุฎู…ุณู…ูŠุฉ
390
00:46:23,920 --> 00:46:31,210
ูˆุณุจุนุชุงุดุฑุง ู†ูŠูˆุชู† ุงู„
391
00:46:31,210 --> 00:46:40,370
inertia force FI ุงูˆ ูŠุนู†ูŠ ุงู„ FI ุงู„ FI ุจุงู„ุณุงูˆูŠุฉ MR
392
00:46:40,370 --> 00:46:50,910
ููŠ omega square R ููŠ cosine theta ุฒุงุฆุฏ cosine two
393
00:46:50,910 --> 00:46:59,360
theta ุนู„ู‰ Nู„ุฃู† ุฃู†ุง ุซุชุง ู…ุด ุนุงุฑูู‡ุง ุจุณ ุนุงุฑู X ุงู„ X
394
00:46:59,360 --> 00:47:04,440
ุนู†ุฏูŠู‡ ุดูˆ ุงู„ุณุงูˆูŠ ู…ู† X ุจู‚ู‰ ุฃุญุณุจ ุงู„ุซุชุง ุงู„ X ุจุงู„ุณุงูˆูŠ R
395
00:47:04,440 --> 00:47:17,680
ููŠ ูˆุงุญุฏ minus cosine theta ุฒุงุฏ sin ุชุฑุจูŠุน ุซุชุง ุนู„ู‰
396
00:47:17,680 --> 00:47:32,350
ุงุชู†ูŠู† N ุงู„ X ุนู†ุฏูŠู‡ุง ูƒุงู…ุŸุนุดุฑุฉ ูˆ ุงู„ R ุฎู…ุณูŠู† ุฎู…ุณูŠู†
397
00:47:32,350 --> 00:47:37,930
ููŠ ูˆุงุญุฏ
398
00:47:37,930 --> 00:47:46,470
minus cosine theta ุฒุงุฏ sin ุชุฑุจูŠุน theta ุนู„ู‰ ุงุชู†ูŠู†
399
00:47:46,470 --> 00:47:51,190
ููŠ ุงู† ุงู† ุงู„ู„ูŠ ู‡ูŠ ุงูƒู…ู„ ุญุณุจ ุงู„ู„ู‡ ุงุฑุจุนุฉ
400
00:48:00,700 --> 00:48:04,240
ุฎู„ู‘ูŠู†ูŠ ุฃุจุณุทู‡ุง ุนุดุฑุฉ ุนู„ู‰ ุฎู…ุณุฉ ุงุชู†ูŠู† ู…ู† ุนุดุฑุฉ ุงุชู†ูŠู† ู…ู†
401
00:48:04,240 --> 00:48:18,100
ุนุดุฑุฉ ุจุชุณุงูˆูŠ ูˆุงุญุฏ minus cosine theta ุฒุงุฆุฏ bond bond
402
00:48:18,100 --> 00:48:27,200
ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ููŠ ุงู„ sine ุชุฑุจูŠู‡ ุนุจุงุฑุฉ ุนู† ูˆุงุญุฏ
403
00:48:27,200 --> 00:48:33,470
ู†ุงู‚ุต cosine ุชุฑุจูŠู‡ ููŠ ูˆุงุญุฏminus cosine ุชุฑุจูŠุฉ theta
404
00:48:33,470 --> 00:48:36,810
ุฎู„ู‘ู‰
405
00:48:36,810 --> 00:48:43,730
ุฃุฌูŠุจ ุงู„ูˆุงุญุฏ ุนู„ู‰ ุงู„ุฌู‡ุฉ ุงู„ุชุงู†ูŠุฉ ุจุงู„ุณูŠุฑุงู†
406
00:48:43,730 --> 00:48:49,630
ุฏูŠ point two ุจุงู„ุณูŠุฑุงู† ุฏูŠ minus point eight ุฃูˆ ุฃุฌูŠุจ
407
00:48:49,630 --> 00:48:56,390
ุงู„ุงุชู†ูŠู† ู‡ู†ุง ุจุงู„ุณูŠุฑุงู† ุฏูŠ point ุชู…ุงู†ูŠุฉ
408
00:48:58,100 --> 00:49:10,300
minus cosine theta ุฒุงุฆุฏ point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ ู†ุงู‚ุต
409
00:49:10,300 --> 00:49:20,040
point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ cosine ุชุฑุจูŠุน theta ุจุงู„ุณุงูˆุฉ
410
00:49:20,040 --> 00:49:20,380
ุตูุฑ
411
00:49:27,800 --> 00:49:37,240
ูŠุนู†ูŠ ู‡ุชุตูŠุฑ ุนู†ุฏู‰ point ุชุณุนุฉ ุงุชู†ูŠู† ุฎู…ุณุฉ minus cosine
412
00:49:37,240 --> 00:49:47,740
theta minus point ูˆุงุญุฏ ุงุชู†ูŠู† ุฎู…ุณุฉ cosine ุชุฑุจูŠุน
413
00:49:47,740 --> 00:49:54,790
theta ุจุงู„ุณุงูˆูŠุฉ ุตูุฑ ุจุฏูŠ ุงู‚ุณู… ุนู„ู‰ minus ูˆุงุญุฏุฃูˆ
414
00:49:54,790 --> 00:49:58,150
ุฎู„ู‘ูŠู†ูŠ ุฃุถุฑุจ ููŠ ุชู…ุงู†ูŠุฉ ุจุฏูŠ ุฃุถุฑุจ ููŠ ุชู…ุงู†ูŠุฉ ุงู„ุทุฑููŠู†
415
00:49:58,150 --> 00:50:02,830
ุนุดุงู† ุฃุจุณุท ู‡ุถุฑุจ ุทุฑููŠู† ููŠ ุชู…ุงู†ูŠุฉ ููŠ ุณุงู„ุจ ุชู…ุงู†ูŠุฉ
416
00:50:02,830 --> 00:50:09,690
ู‡ุฒุฑุงู† ุฏูŠ cosine ุชุฑุจูŠุน ูŠุนู†ูŠ ู‡ุถุฑุจู‡ุง ููŠ ุณุงู„ุจ ุชู…ุงู†ูŠุฉ
417
00:50:09,690 --> 00:50:16,510
ู‡ุฒุฑุงู† ุฏูŠ cosine ุชุฑุจูŠุน theta ุฒุงุฆุฏ
418
00:50:16,510 --> 00:50:19,190
ุชู…ุงู†ูŠุฉ
419
00:50:20,830 --> 00:50:39,550
cos ฮธ minus minus
420
00:50:39,550 --> 00:50:46,790
7.4 ุจุงู„ุณุงูˆูŠุฉ
421
00:50:46,790 --> 00:50:47,810
ุณูุฑ
422
00:50:50,340 --> 00:50:57,560
ูŠุนู†ูŠ cos ฮธ ู‡ุฐู‡
423
00:50:57,560 --> 00:51:03,660
ูƒุฃู†ู‡ุง ู…ุนุงุฏู„ุฉ ุนู„ู‰ ุดูƒู„ x ุชุฑุจูŠู‡ ุฒุงุฆุฏ ุจูŠ ููŠ x x ุชุฑุจูŠู‡
424
00:51:03,660 --> 00:51:06,240
ุฒุงุฆุฏ ุจูŠ ููŠ x ุฒุงุฆุฏ c ุจุงู„ุณุงูˆูŠุฉ constant ุงู„ู…ุนู†ู‰ ุฃู†
425
00:51:06,240 --> 00:51:16,460
cos ฮธ ู‡ุชูƒูˆู† ุชุณุงูˆูŠ minus ุชู…ุงู†ูŠุฉ ุฒุงุฆุฏ ุฃูˆ ู†ุงู‚ุต ุงู„ุฌุฒุฑ
426
00:51:16,460 --> 00:51:17,220
ุงู„ุชุฑุจูŠุนูŠ
427
00:51:20,460 --> 00:51:33,640
ู„ุฃุฑุจุน ูˆ ุณุชูŠู† ุฒุงุฆุฏ ู„ุฃุฑุจุน
428
00:51:33,640 --> 00:51:46,240
ูˆ ุณุชูŠู† ุฒุงุฆุฏ ุฃุฑุจุนุฉ ููŠ ุณุจุน point ุฃุฑุจุนุฉ ูƒู„ู‡ ุนู„ู‰ ุงุชู†ูŠู†
429
00:51:52,680 --> 00:51:58,200
ุทุจุนุง ุงู„ minus ู…ุฑููˆุถุฉ ู„ุฃู†ู‡ุง ุชุฌุนู„ ุงู„ cosine ุฃูƒุชุฑ ู…ู†
430
00:51:58,200 --> 00:52:06,260
ูˆุงุญุฏ ูˆู‡ุฐุง ู…ุณุชุญูŠู„ ุงู„ minus sign is rejected ู„ุฃู†ู‡ุง
431
00:52:06,260 --> 00:52:12,540
ุชุฌุนู„ ุงู„ cosine ุฃูƒุชุฑ ู…ู† ูˆุงุญุฏ ูƒู…ูŠุชู‡ุง
432
00:52:12,540 --> 00:52:17,060
ุฃูƒุชุฑ ู…ู† ูˆุงุญุฏ ู…ุนู†ุงุชู‡ ุงู„ cosine ุชุชุฑุญุจ ุจูŠู† minus ูˆุงุญุฏ
433
00:52:17,060 --> 00:52:20,200
ูˆ ูˆุงุญุฏ ู…ุณุชุญูŠู„ ู…ุนู†ุงุชู‡ ู‡ุชูƒูˆู† plus ู…ุนู†ุงุชู‡ ู‡ุชูƒูˆู†
434
00:52:20,200 --> 00:52:30,670
cosine thetaู‡ุชูƒูˆู† ุชุณุงูˆูŠ minus ุชู…ุงู†ูŠุฉ ุฒุงุฏ ุงู„ุฌุฒุฑ
435
00:52:30,670 --> 00:52:35,130
ุงู„ุชุฑุจูŠุนูŠ ู„ู„ุงุฑุจุนุฉ ูˆุณุชูŠู† ุฒุงุฏ ุงุฑุจุนุฉ ููŠ ุณุจุนุฉ ูˆุงุฑุจุนุฉ
436
00:52:35,130 --> 00:52:37,850
ุนู„ู‰ ุงุชู†ูŠู† ุฒุงุฏ ุฌุฒุฑ ุงู„ุชุฑุจูŠุนูŠ
437
00:52:55,080 --> 00:53:00,960
ุฒูŠ ุงุฌุงุฒุฉ ุชุฑุจูŠุฉ ู„ุชู„ุงุช ุณู†ูŠู† ุจูˆู†ุช
438
00:53:00,960 --> 00:53:13,680
ุณุชุฉ ุนู„ู‰ ุงุชู†ูŠู† ู‡ุนุฏู„ ูƒุณุงู† ุซุชุง ูˆู…ู†ู‡ุง ุจู‚ู‰ ุงุญุณุจ ุงู„ุซุชุง
439
00:53:13,680 --> 00:53:21,320
ู…ู†ู‡ุง ุจู‚ู‰ ุงุญุณุจ ุงู„ุซุชุง once ุงู„ theta is calculated
440
00:53:23,730 --> 00:53:29,110
once theta is calculated ุจู‚ุฏุฑ ุงูŠุด ุงุญุณุจ ุงู„ fi
441
00:53:29,110 --> 00:53:39,290
ู…ุนู†ุงุชู‡ ุญุณูŠุฑ ุนู†ุฏูŠ ุญุณูŠุฑ
442
00:53:39,290 --> 00:53:43,910
ุนู†ุฏูŠ ุงู„ fi ุงู„ู„ูŠ
443
00:53:43,910 --> 00:53:48,730
ู‡ูŠ ุจุชุณูˆูŠ ุงู„ mr ุนู†ุฏูŠ ูˆุงุญุฏ
444
00:53:48,730 --> 00:53:52,010
ููŠ
445
00:53:52,010 --> 00:53:52,470
ุงู„ omega
446
00:53:55,750 --> 00:54:06,390
ุงู„ุงู…ุฌุง ุงุญู†ุง ู…ุง ุญุณุจู†ุงุด ุงู„ุงู…ุฌุง ุจุณุงูˆูŠ
447
00:54:06,390 --> 00:54:18,550
ุงู„ู ุชูˆู†ู…ูŠุฉ ููŠ ุงุชู†ูŠู† ุจุงูŠ ุน ุณุชูŠู† ุงู„ู
448
00:54:18,550 --> 00:54:26,590
ุชูˆู†ู…ูŠุฉููŠ ุงุชู†ูŠู† ููŠ ุจุงูŠ ุชู‚ุณูŠู… ุณุชูŠู† ุชุทู„ุน ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠุฉ
449
00:54:26,590 --> 00:54:31,750
ูˆ ุชู…ุงู†ูŠู† point four ุฑุฏูŠุงู†
450
00:54:31,750 --> 00:54:38,130
ู„ูƒู„ second ูŠุนู†ูŠ ุงู„ FI ู‡ุชูƒูˆู† ููŠ ู…ูŠุฉ ูˆ ุชู…ุงู†ูŠุฉ ูˆ
451
00:54:38,130 --> 00:54:42,550
ุชู…ุงู†ูŠู† point four ุชุฑุจูŠุน
452
00:54:42,550 --> 00:54:49,030
ููŠ ุงู„ R ุงู„ R ุนู†ุฏู‰ ุฎู…ุณูŠู† ููŠ point O
453
00:54:51,920 --> 00:54:56,320
ุฎู…ุณุฉ ููŠ cosine theta ุงู„ู„ูŠ ุงู†ุง ุญุณุจุช ู…ู† ู‡ู†ุง ููŠ
454
00:54:56,320 --> 00:55:06,520
cosine theta ุฒุงุฆุฏ cosine two theta ุนู„ู‰
455
00:55:06,520 --> 00:55:12,400
n ุงู„ู„ูŠ ู‡ูŠ ุงูŠุงุด n ุงุฑุจุนุฉ ุนู„ู‰ ุงุฑุจุนุฉ ูˆู…ู†ู‡ุง ุจุญุณุจ ุงู„
456
00:55:12,400 --> 00:55:15,640
inertia force ุงู„ inertia force
457
00:55:18,520 --> 00:55:24,600
ุจุณ ุฎู„ูŠู†ูŠ ุจุฏูŠ ุงู†ุง ุงุญุณุจ ุงู„ theta ุนุดุงู†
458
00:55:24,600 --> 00:55:26,120
ุงุนุฑู ุญุงู„ูŠ ุงู†ุง ูˆูŠู†
459
00:55:47,440 --> 00:55:53,960
ุงู„ู…ุนุงุฏู„ุฉ ุงู„ู„ูŠ ุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ ุฌุฒุฑ 93.6 ู†ุงู‚ุต 8 ุนู„ู‰ 2
460
00:55:53,960 --> 00:55:59,960
ุฌุฒุฑ 93 93
461
00:55:59,960 --> 00:56:04,560
.6 ุชุญุช
462
00:56:04,560 --> 00:56:14,590
ุงู„ุฌุฒุฑ ู†ุงู‚ุต 8 ุนู„ู‰ 2ุชุทู„ุน cos ฮธ ุจุชุณุงูˆูŠ point ุชู…ุงู†ูŠุฉ
463
00:56:14,590 --> 00:56:21,050
ุชู„ุงุชุฉ ุณุจุนุฉ ุฃุฑุจุนุฉ point ุชู…ุงู†ูŠุฉ ุชู„ุงุชุฉ point ุชู…ุงู†ูŠุฉ
464
00:56:21,050 --> 00:56:24,170
cos
465
00:56:24,170 --> 00:56:30,490
ฮธ ุชุทู„ุน point ุชู…ุงู†ูŠุฉ ุชู„ุงุชุฉ
466
00:56:30,490 --> 00:56:35,750
ุณุจุนุฉ ุฃุฑุจุนุฉ ู‡ุฐุง
467
00:56:35,750 --> 00:56:36,450
ู‡ูˆ cos ฮธ
468
00:56:44,750 --> 00:56:46,670
ู‡ุชูƒูˆู† ุตุบูŠุฑุฉ ุซุชุง
469
00:58:00,570 --> 00:58:07,170
ุฃู†ุง ุนู†ุฏูŠ point zero point ุชู…ุงู†ูŠุฉ ุชู„ุงุชุฉ ุณุจุนุฉ ุฃุฑุจุนุฉ
470
00:58:07,170 --> 00:58:14,390
ุงู„ู„ูŠ ู‡ูˆ cosine inverse ุชุทู„ุน
471
00:58:14,390 --> 00:58:17,910
ุชู„ุงุชุฉ ูˆ ุชู„ุงุชูŠู† point ุชู„ุชุงุด ุชู„ุงุชุฉ ูˆ ุชู„ุงุชูŠู† theta
472
00:58:17,910 --> 00:58:25,350
ุชู„ุงุชุฉ ูˆ ุชู„ุงุชูŠู† point ุชู„ุชุงุดุฑ degree ูŠุนู†ูŠ ุงู†ุง ู‡ุณูŠุฑ
473
00:58:25,350 --> 00:58:33,590
ุนู†ุฏูŠ ู‡ู†ุง ููŠ cosine ููŠ cosineุชู„ุงุช ุชู„ุงุชูŠู† bond ุชู„ุงุช
474
00:58:33,590 --> 00:58:39,170
ุชุงุด ุฒุงุฏ cosine ุณุชุฉ
475
00:58:39,170 --> 00:58:47,430
ุณุชุฉ ุณุชุฉ ุนุดุฑูŠู† degree ุนู„ู‰ ุนู„ู‰
476
00:58:47,430 --> 00:58:50,930
N ุนู„ู‰ ุฃุฑุจุน
477
00:58:50,930 --> 00:58:53,030
ูŠุนู†ูŠ ุงู†ุง ู‡ูƒูˆู† ุนู†ุฏูŠ ุงู„ FI
478
00:59:04,420 --> 00:59:10,020
ุชู„ุชุงุด ูƒูˆ ุณุงูŠู† ุฒุงุฆุฏ
479
00:59:32,050 --> 00:59:39,410
ุทูŠุจ ุงู„ู…ู‡ู… ูุจุญุณุจ ุงู„ fi ู…ุถุทุฑ ุฅู„ู‡ุง ู‚ูŠู…ุฉ ุจุนุฏูŠู† ู‡ุญุณุจ
480
00:59:39,410 --> 00:59:42,830
piston effort ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุฃู†ุง ู…ุนู†ุงุชู‡ I am
481
00:59:42,830 --> 00:59:45,870
accelerating ู…ุนู†ุงุชู‡ ู‡ุชูƒูˆู† piston effort ู‡ุชูƒูˆู† fl
482
00:59:45,870 --> 00:59:55,530
minus ุงู„ fi ู‡ูŠ ุญุณุจู†ุง ุงู„ piston effort ุญุณุจู†ุง ุงู„
483
00:59:55,530 --> 00:59:56,450
piston effort
484
01:00:05,020 --> 01:00:16,280
ู‡ุฐุง ุงู„ู…ุทู„ูˆุจ ุงู„ุฃูˆู„ ุงู„ู…ุทู„ูˆุจ ุงู„ุชุงู†ูŠ ุงู„ trust
485
01:00:16,280 --> 01:00:25,260
in connecting rods ูŠุนู†ูŠ ุจุฏู‡ FQ FQ ุจุณ ู‡ูˆ FP ุนู„ู‰
486
01:00:25,260 --> 01:00:31,420
cosine ุงู„ูุงู‰ sine ุงู„ูุงู‰
487
01:00:33,910 --> 01:00:42,630
ุจุณุงูˆู‰ sin ฮธ ุนู„ู‰ n ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุณุงูˆู‰ sin ุงู„ู€ 33 ุจู‚ูˆู†
488
01:00:42,630 --> 01:00:49,530
13 ุนู„ู‰ n ุงู„ู„ูŠ ู‡ูŠ ุฃุฑุจุนุฉ ูˆ ู…ู†ู‡ุง ุจุญุณุจ ุงู„ูุงูŠ ุจุนุฏูŠู†
489
01:00:49,530 --> 01:00:51,890
ุจุญุณุจ ุงู„ FQ
490
01:00:59,380 --> 01:01:03,660
ุจุฏูˆ reaction between piston and .. reaction
491
01:01:03,660 --> 01:01:07,640
between piston and cylinder reaction between
492
01:01:07,640 --> 01:01:11,500
piston and cylinder ู„ุงู† ู†ุฑูˆุญ ู„ู„ free body diagram
493
01:01:11,500 --> 01:01:23,260
ุจุฏูˆ reaction between piston and cylinder ุงู†ุง
494
01:01:23,260 --> 01:01:28,020
ุนู†ุฏูŠ ู‡ุงูŠ ุงู„ piston ู‡ุงูŠ
495
01:01:28,020 --> 01:01:28,880
ุงู„ piston effort
496
01:01:31,730 --> 01:01:37,230
ูˆ ู‡ุงูŠ ุงู„
497
01:01:37,230 --> 01:01:51,210
F ุงู„ FQ ูˆ ููŠ ุนู†ุฏู‡ุง FN ูˆ ุนู†ุฏู‡ุง ุงู„ W Reciprocating
498
01:02:01,580 --> 01:02:07,300
ู„ูˆ ุฎุฏุช summation ู‡ุงูŠ ุงู„ X ู‡ุงูŠ ุงู„ Y ุญุฏ ูƒุฏุช
499
01:02:07,300 --> 01:02:13,640
summation ู„ู„ forces ุจุงุชุฌุงู‡ ุงู„ Y ู‡ุชุณุงูˆูŠ Zero ู‡ุชุณุงูˆูŠ
500
01:02:13,640 --> 01:02:24,300
ุจุงุชุฌุงู‡ ุงู„ Y ู‡ุชูƒูˆู† FN minus WR minus FQ
501
01:02:40,910 --> 01:02:48,150
WR FQ SIN 5
502
01:03:01,420 --> 01:03:09,140
ูŠุนู†ูŠ WR ู‡ูŠ MR ููŠ G ุฒูŠ FQ ู‡ูŠ ุจุฑุนู† Piston Effort FP
503
01:03:09,140 --> 01:03:15,240
ุฑูˆุฏูŠ ุญุณุจู†ุงู‡ุง ูŠุนู†ูŠ ู…ุด ุฏู‡ .. ู‡ุฎู„ูŠู‡ุง ุฒูŠ ู…ุง ู‡ูŠ FQ SINE
504
01:03:15,240 --> 01:03:19,920
ุงู„ูุงูŠ ุงู†ุง ุฑูˆุฏูŠ ุนุงุฑู ุงู„ mass ุจุชุงุนุฉ ุงู„ MR ูˆุงู„ G
505
01:03:19,920 --> 01:03:26,080
ู…ุนุฑูˆูุฉ ุงู„ FQ ุญุณุจู†ุงู‡ุง ูˆุงู„ูุงูŠ ู…ุนุฑูˆูุฉ ุทูŠุจ
506
01:03:30,070 --> 01:03:33,790
ุงู„ู…ุทู„ูˆุจ ุงู„ุฑุงุจุน engine speed at which the above
507
01:03:33,790 --> 01:03:39,830
values become zero ุณุฑุนุฉ ุงู„ู…ุญุฑูƒ .. ุณุฑุนุฉ ุงู„ู…ุญุฑูƒ ุงู„
508
01:03:39,830 --> 01:03:49,030
RPM ุงู„ู„ูŠ ุนู†ุฏู‡ุง ุจุชูƒูˆู† ุงู„ above values ุงู„ู„ูŠ ู‡ูŠ net
509
01:03:49,030 --> 01:03:53,310
load on Gadget pen ุงู„ู„ูŠ ู‡ูŠ FP ูŠุนู†ูŠ ุจุฏู‡ .. ุจุฏู‡
510
01:03:53,310 --> 01:03:57,490
omega at which
511
01:04:00,530 --> 01:04:10,310
ู ุจูŠ ุจุงู„ุณุงูˆูŠุฉ ุงูŠุดุŸ Zero ุจุจุณุงุทุฉ ู‡ุฌุญูƒ ุนู†ุฏู‰ ู ุจูŠ
512
01:04:10,310 --> 01:04:25,230
ุจุงู„ุณุงูˆูŠุฉ Zero ุจุงู„ุณุงูˆูŠุฉ ุงู„ู„ู‰ ู‡ู‰ ู‡ุชูƒูˆู† Fl minus Fi
513
01:04:27,900 --> 01:04:30,440
ูŠุนู†ูŠ ู‡ุญู„ ุงู„ู…ุนุงุฏู„ุฉ ู‡ุฐู‡ ุงู†ุง ู…ุด ุนุงุฑู ู…ู…ูƒู† ุชูƒูˆู† minus
514
01:04:30,440 --> 01:04:33,180
ุงูˆ plus ู…ุงุฑู‡ุง ู‡ุญู„ู‡ุง minus ูˆ ู…ุงุฑู‡ุง ู‡ุญู„ู‡ุง plus
515
01:04:33,180 --> 01:04:40,000
ุงู„ุฃูู‚ุงู„ ุงุญู†ุง ุนุงุฑููŠู†ู‡ุง ุจุงูŠ ุนู„ู‰ ุฃุฑุจุน ุฏูŠ square ููŠ ุงู„
516
01:04:40,000 --> 01:04:46,520
pressure ู†ุญูƒูŠ assume constant
517
01:04:46,520 --> 01:04:51,040
pressure
518
01:04:51,040 --> 01:04:56,300
ูˆุงู„
519
01:04:56,300 --> 01:05:08,180
F Iุงู„ู„ูŠ ู‡ูŠ ุนุจุงุฑุฉ ุนู† mr omega square r cos ฮธ ุฒุงุฆุฏ
520
01:05:08,180 --> 01:05:13,640
cos 2ฮธ ุนู„ู‰ n ูŠุนู†ูŠ ุงู†ุง ู‡ุนูˆุถู‡ุง ููŠู‡ุง ุงุฐุง ุญุณูŠุจ ุนู†ุฏูŠ ุงู„
521
01:05:13,640 --> 01:05:20,020
zero ุจุงู„ุณุงูˆูŠุฉ ุงู„ุงูู‚ุงู„ ุงู„ู„ูŠ ู‡ูŠ ุงู„ู„ูŠ ู‡ูŠ ู…ุญุณูˆุจ y ุนู„ู‰
522
01:05:20,020 --> 01:05:31,340
ุงุฑุจุนุฉ d square P minus mrูˆู…ูŠุฌุง ุณูƒูˆุงุฑ ุฑ ููŠ ูƒูˆุณูŠู†
523
01:05:31,340 --> 01:05:41,180
ุซูŠุชุง ุฒุงุฆุฏ ูƒูˆุณูŠู† ุชูˆ ุซูŠุชุง ุนู„ู‰ ุงู† solve this equation
524
01:05:41,180 --> 01:05:46,660
for theta solve for
525
01:05:46,660 --> 01:05:47,260
theta
526
01:05:55,570 --> 01:06:06,110
solve for theta ุงู‡
527
01:06:06,110 --> 01:06:12,590
solve for omega
528
01:06:12,590 --> 01:06:16,530
ุงุฑุฌุน ุงู„ู†ุธุฑ ุชุญู„ูˆ ุงู„ุชุงู„ูŠ ุงุฑุฌุน ุงู„ู†ุธุฑ ุชุฑูˆุญูˆุง ุนู„ู‰ ุงู„
529
01:06:16,530 --> 01:06:20,990
math lab go
530
01:06:20,990 --> 01:06:24,670
ุงูˆ go ุงูˆ use
531
01:06:26,310 --> 01:06:32,690
math lab ุงุฑ
532
01:06:32,690 --> 01:06:37,430
Mathematica
533
01:06:37,430 --> 01:06:41,350
ุญุณุจ
534
01:06:41,350 --> 01:06:50,890
ุงุฑ ู…ุงุจู„ ุจูŠุชูƒุฑูˆูŠู‡ุง ุงุฑ Mathcad
535
01:06:54,630 --> 01:07:01,610
or even excel plot
536
01:07:01,610 --> 01:07:05,970
plot
537
01:07:05,970 --> 01:07:11,230
plot
538
01:07:11,230 --> 01:07:16,270
plot
539
01:07:16,270 --> 01:07:25,250
ุงู„ู„ูŠ ู‡ูŠุงู„ูƒูˆู† ุงู„ variables ุงู„ู„ูŠ ู‡ูŠ ุงู„ F T ูˆ ุงู„ F I
540
01:07:25,250 --> 01:07:46,870
ูˆ ุงู„ F L ูˆ ุงู„ F Q ูˆ ุงู„ F B ูˆ ุงู„ F T versus Theta C
541
01:07:50,060 --> 01:07:56,320
how things are
542
01:07:56,320 --> 01:08:00,220
going on ุดูˆู ูƒูŠู ุงู„ุฃู…ูˆุฑ ู…ุงุดูŠุฉ
543
01:08:11,930 --> 01:08:14,330
ุงู„ู…ุทู„ูˆุจ ุงู„ุฃุฎูŠุฑ ู‡ู‰ ุงู„ engine speed at which the
544
01:08:14,330 --> 01:08:20,850
above values become zero for
545
01:08:20,850 --> 01:08:23,850
the same angle ูŠุนู†ูŠ ุงู†ุง ู‡ู„ุนุจ ููŠ ุฒุงูˆูŠุฉ ุงู„ู„ูŠ .. ุงู„ู„ูŠ
546
01:08:23,850 --> 01:08:26,090
.. ุงู„ู„ูŠ .. ุงู„ู„ูŠ ุญุงุณูŠุฑ .. ุงู„ู„ูŠ ุญุงุณูŠุฑ ู…ุซู„ุง ุงู„ F
547
01:08:26,090 --> 01:08:31,790
piston ุจูŠุตูˆู‰ F L .. F L minus F I ูŠุนู†ูŠ ู„ู…ุง ุงู„ ..
548
01:08:31,790 --> 01:08:36,390
ุงู„ piston effort ู„ู…ุง ุงู„ load ุจูŠุตูˆู‰ ุงู„ inertia
549
01:08:36,390 --> 01:08:38,270
force ุจุตู„
550
01:08:42,480 --> 01:08:50,100
ูˆ ุจุญุณุจ ุนู†ุฏ ู†ูุณ ุงู„ุฒุงูˆูŠุฉ ุงู„ู„ูŠ ู‡ูŠ ุงู„ omega ุจุณ ู†ุตูŠุญุชู‡
551
01:08:50,100 --> 01:08:54,420
use MATLAB ุงูˆ Mathematica ู…ุงุจู„ ู…ุงุชูƒุงุฏ ุงูƒุณุฑ ุงูˆ any
552
01:08:54,420 --> 01:08:57,860
software Mathematica software ุงุนู…ู„ plot ู„ู„ FB ูˆ FI
553
01:08:57,860 --> 01:09:03,880
ูˆ FL ูˆ FQ ูˆ FB ูˆ FT versus ฮธ for a certain omega
554
01:09:03,880 --> 01:09:08,280
ุงู„ุนุจ ููŠ omega ูƒู…ุงู† ุงู„ุนุจ ููŠ omega ู…ุนูŠุนู†ูŠ .. ูŠุนู†ูŠ
555
01:09:08,280 --> 01:09:12,140
ุฎู„ู‘ูŠ two variables ุนู†ุฏูƒ Omega ูˆTheta ูˆุดูˆู ูƒูŠู
556
01:09:12,140 --> 01:09:16,060
ุงู„ุฃู…ูˆุฑ ุจุชู…ุดูŠ ู…ุนุงูƒ ุงู„ plotting ุจูŠุนุทูŠู„ูƒ more insight
557
01:09:16,060 --> 01:09:19,200
ููŠ ุงู„ .. ููŠ ุงู„ .. ููŠ ุงู„ู…ุซู„ุฉ ูˆ ุทุจุนุง ู‡ุฐู‡ ุงู„ ..
558
01:09:19,200 --> 01:09:23,260
ุงู„ุงุตู„ุงุฏุฉ ูƒุงู†ุช ู„ูƒ ู…ูŠูƒุงู†ุฒู… ู…ุณุฃู„ุฉ ู…ู‡ู…ุฉ ุฌุฏุง ุฌุฏุง ู„ุฅู†ู‡
559
01:09:23,260 --> 01:09:27,660
ุงู„ engine ููŠ ุงู„ู…ุญุฑูƒ ุจุชุงุน ุงู„ .. ูƒู„ ุงู„ู…ุญุฑูƒุงุช ุงู„ู„ูŠ ..
560
01:09:28,290 --> 01:09:33,930
ุงู„ู„ูŠ ุจุชุดุชุบู„ ุจุงู„ูˆู‚ูˆุฏ ุณูˆุงุก ูƒุงู† ุจู†ุฒูŠู† ุงูˆ ุฏูŠุฒู„ ุจุชุดุชุบู„
561
01:09:33,930 --> 01:09:36,790
ุนู„ู‰ ู†ูุณ ุงู„ principle ู‡ูŠูƒ ุจู†ูƒูˆู† ุฎู„ุตู†ุง ุงู„ section
562
01:09:36,790 --> 01:09:44,050
ู‡ุฐุง ูŠุนู†ูŠ ุงู†ุง ุจุดูˆู ุงู„ู…ุนูŠุฏ ุงุฎุฏุญู„ูƒู… example ุน ุฎู…ุณุงุด
563
01:09:44,050 --> 01:09:48,550
ุนุดุฑ ุฎู…ุณุงุด ุฃุญุฏุงุดุฑ ุฎู…ุณุงุด ุงุชู†ุงุด ุงู„ู…ุญุงุถุฑุฉ ุฌุงูŠ ู‡ู†ูƒู…ู„
564
01:09:48,550 --> 01:09:49,470
ุงุนุทูŠูƒูˆุง ุงู„ุนุงููŠุฉ