abdullah's picture
Add files using upload-large-folder tool
9ae71aa verified
raw
history blame
45.1 kB
1
00:00:04,890 --> 00:00:07,830
ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ุณู„ุงู… ุนู„ูŠูƒู… ูˆุฑุญู…ุฉ ุงู„ู„ู‡
2
00:00:07,830 --> 00:00:12,250
ูˆุจุฑูƒุงุชู‡ ุงู„ูŠูˆู… ู‡ู†ูƒู…ู„ ุงู„ุดุงุจุชุฑ inertia forces of
3
00:00:12,250 --> 00:00:16,070
reciprocating parts. ุจุนุฏูŠู† ู‡ุฏุฑุณู†ุง ุงู„ู„ูŠ ู‡ูˆ velocity
4
00:00:16,070 --> 00:00:19,630
displacement and acceleration analysis ู„ู„ slotted
5
00:00:19,630 --> 00:00:22,290
crank mechanism. ุญุณุจู†ุง ุงู„ velocity ูˆ ุงู„
6
00:00:22,290 --> 00:00:25,890
acceleration ูˆ ุงู„ position ู„ู„ piston. ุญุณุจู†ุง ุงู„
7
00:00:25,890 --> 00:00:28,730
angular velocity ูˆ ุงู„ angular acceleration ู„ู„
8
00:00:28,730 --> 00:00:33,350
connecting rod. ุทุจุนุง ู‡ู†ุนุทูŠู†ุง ุญู„ูˆู„ ุชุญู„ูŠู„ูŠุฉ ุชู‚ุฑูŠุจูŠุฉ
9
00:00:33,350 --> 00:00:37,880
ุนู…ู„ู†ุง ุจุนุถ ุงู„ approximations. ู‡ู†ูƒู…ู„ ู†ุญุณุจ ุงู„ forces
10
00:00:37,880 --> 00:00:45,280
ุนู„ู‰ ุงู„ reciprocating parts of an engine. ุฃู†ุง
11
00:00:45,280 --> 00:00:53,900
ุนู†ุฏ ู‡ู†ุง ุงุณุชุฎุฏุงู… ุงู„ูƒุฑุงู†ูƒ ุนู†ุฏ ู‡ุงูŠ ู…ุฑูƒุฒ ุฏูˆุฑุงู† ุงู„ูƒุฑุงู†ูƒ
12
00:00:53,900 --> 00:00:57,640
ุฃูˆ ู‡ุงูŠ ุงู„ูƒุฑุงู†ูƒ
13
00:01:04,480 --> 00:01:12,380
ูˆ ู‡ุงูŠ ุงู„ connecting rod. ู‡ุฐู‡
14
00:01:12,380 --> 00:01:22,380
OCุŒ ูˆู‡ุฐู‡ ู†ู‚ุทุฉ PุŒ ูˆู‡ุฐู‡ ุงู„ piston
15
00:01:22,380 --> 00:01:33,480
ุงู„ูƒุฑุงูŠู†ูƒ
16
00:01:33,480 --> 00:01:33,940
ุจุฏูˆุฑ
17
00:01:38,240 --> 00:01:44,320
ุจุตูˆุฑุฉ ุนู„ู‰ ุงู„ุฒุงูˆูŠุฉ omega clockwiseุŒ ุงู„ุฒุงูˆูŠุฉ ู…ุน ุงู„ุฃูู‚
18
00:01:44,320 --> 00:01:48,400
ู‡ุฐุง
19
00:01:48,400 --> 00:01:54,820
thetaุŒ ูˆุงู„ุฒุงูˆูŠุฉ ุจูŠุตูˆูŠู‡ุง ุงู„ connecting rod ู…ุน ุงู„ุฃูู‚
20
00:01:54,820 --> 00:01:59,560
ู‡ุฐุง ุงู„ุฒุงูˆูŠุฉ ููŠ
21
00:02:08,590 --> 00:02:13,870
ุงู„ุขู† ู„ูˆ ุจุฏุฃ ุฃุนู…ู„ force analysisุŒ ูˆ ุจุฏุฃุช ู…ู† ุนู†ุฏ ุงู„
22
00:02:13,870 --> 00:02:18,270
pistonุŒ ู‡ูƒูˆู†
23
00:02:18,270 --> 00:02:23,910
ุนู†ุฏ ุงู„ pistonุŒ ู‡ู†ู„ู‚ force analysis
24
00:02:39,620 --> 00:02:45,840
ู‡ูŠูƒูˆู† ููŠ ุนู†ุฏูŠ ู‡ูŠู† ุฌุงูŠ piston effort FP
25
00:02:45,840 --> 00:02:53,460
ููŠ ุนู†ุฏูŠ normal force ู‡ูŠู† ู…ู† ุงู„ุฌุฏุงุฑ ุจุชุงุน ุงู„ุฃุณุชูˆุงู†ุฉ
26
00:02:53,460 --> 00:03:01,760
F normalุŒ ูˆ ููŠ ุนู†ุฏูŠ ูˆุฒู† ุงู„ reciprocating parts
27
00:03:16,360 --> 00:03:23,840
ูˆ ููŠู‡ ุนู†ุฏูŠ force ู…ู†
28
00:03:23,840 --> 00:03:32,240
ุงู„ connecting rod ููŠ
29
00:03:32,240 --> 00:03:38,140
ู‡ุฐุง
30
00:03:38,140 --> 00:03:43,020
ุจุดูƒู„ ุฃุณุฆู„ุฉ. ู„ูˆ ุฃุฎุฏุช ุงู„ pistonุŒ ู„ูˆ ุฃุฎุฏุช ุงู„ connecting
31
00:03:43,020 --> 00:03:43,400
rod
32
00:03:47,140 --> 00:03:51,440
ุฃุฎุฏุช ุงู„ connecting rod ู„ุญุงู„ู‡
33
00:03:51,440 --> 00:03:55,720
ู‡ุฐุง
34
00:03:55,720 --> 00:04:05,340
ุงู„ connecting rodุŒ ู‡ูƒูˆู† ููŠู‡ ุนู†ุฏู‡ ู‡ุฐุง
35
00:04:05,340 --> 00:04:15,420
ูŠุณู…ู‰ FQุŒ ู‡ุฐู‡ FQุŒ ู‡ุฐู‡
36
00:04:15,420 --> 00:04:15,980
ุฒุงูˆูŠุฉ ููŠ
37
00:04:19,080 --> 00:04:25,080
ุทุจุนุง ู‡ู†ุง ุฃู†ุง .. I assume ุฃู†ู‡ .. I assume ุฃู†ู‡ ุงู„ ..
38
00:04:25,080 --> 00:04:27,780
I'm neglecting ุงู„ weight ู„ ุงู„ connecting rod ุงู„
39
00:04:27,780 --> 00:04:30,960
weight of connecting rod is neglected.. neglected
40
00:04:30,960 --> 00:04:35,320
ุชู… ุฅู‡ู…ุงู„ ูˆุฒู† ุงู„ connecting rodุŒ ูˆ it is two for
41
00:04:35,320 --> 00:04:42,540
swim ุจุฑุจุน ู†ุทูˆูŠุฉ. ู‡ูŠูƒูˆู† ููŠ ุนู†ุฏูŠ ูƒู…ุงู† ู‡ู†ุง FQ
42
00:04:42,540 --> 00:04:47,800
ุฌุงูŠ ู…ู† ุงู„ crank. ุฌุง ุฃุนู…ู„ ู„ูƒ ุฑุงู†ูƒ ุนู„ู‰ ุงู„ connecting
43
00:04:47,800 --> 00:04:52,940
rodุŒ ูŠุนู†ูŠ
44
00:04:52,940 --> 00:05:06,660
ุนู†ุฏูŠ ู‡ูŠู† ุนู†ุฏูŠ ู‡ูŠู† FNุŒ ุนู†ุฏูŠ ู‡ูŠู† F piston effortุŒ ูˆ
45
00:05:06,660 --> 00:05:09,260
ุนู†ุฏูŠ ุงู„ูˆุฒู† of reciprocating parts WR
46
00:05:18,990 --> 00:05:22,670
ุงู„ piston effort ู‡ูˆ ุงู„ net force acting on the
47
00:05:22,670 --> 00:05:28,070
piston along the line of stroke. ุงู„ piston effort
48
00:05:28,070 --> 00:05:36,150
ู‡ูˆ ุงู„ net force acting on the piston along the
49
00:05:36,150 --> 00:05:41,990
line of stroke. ูŠุนู†ูŠ ููŠ ู‡ุฐุง ุงู„ุงุชุฌุงู‡ุŒ ู…ุตุฏุฑู‡ุง ุฌุงูŠ ู…ู†
50
00:05:41,990 --> 00:05:47,230
ุงู„ pressureุŒ ููŠ ุนู†ุฏ ุงู„ pressure ุนู„ู‰ ุงู„ pistonุŒ ุทุจุนุง
51
00:05:47,230 --> 00:05:56,310
ููŠู‡ ู‡ูŠู‚ุงู…ู‡ friction ู ุงู„ .. ุงู„ .. ุงู„ FP ุทุจุนุง
52
00:05:56,310 --> 00:05:59,810
ู‡ูŠู‚ุงู…ู‡ friction ูˆ inertia forces. ู‡ูŠู‚ุงู…ู‡ friction ูˆ
53
00:05:59,810 --> 00:06:03,850
inertia forces. ู‡ุฐุง ุงู„ piston ุงู„ู„ูŠ ุฃู†ุง ูƒู…ู„ู‡ ุนู†ุฏู‡ูŠู†
54
00:06:03,850 --> 00:06:06,050
ุจูŠุตูŠุฑ ุจุงู„ุดูƒู„ ู‡ุฐุง
55
00:06:11,870 --> 00:06:24,370
ุงู„ู„ูŠ ู‡ูŠ ู…ุซู„ุง ู‡ุญูƒูŠ mr ููŠ ุงู„ a ุจุชุงุนุฉ ุงู„ pistonุŒ ุฃูˆ
56
00:06:24,370 --> 00:06:33,150
ูƒู†ุช ุฃุญูƒูŠ ุจุงู„ุดูƒู„ ู‡ุฐุง. ู‡ูŠ ุนู†ุฏูŠ ุงู„ piston ุนู„ูŠ
57
00:06:33,150 --> 00:06:37,490
fnุŒ ููŠ ูƒู…ุงู† friction resistance
58
00:06:42,960 --> 00:06:48,920
ููŠ ุนู†ุฏูŠ FNุŒ FN
59
00:06:48,920 --> 00:06:52,580
ูˆุนู†ุฏูŠ
60
00:06:52,580 --> 00:07:01,360
ุจุฏูŠ ุฃุณู…ูŠู‡ุง ู‡ูŠ FุŒ F ุงู„ loadุŒ F ุงู„ loadุŒ ูˆุจุญูƒูŠ ูˆุนู†ุฏูŠ
61
00:07:01,360 --> 00:07:12,330
ุงู„ inertia force ุงู„ู„ูŠ ู‡ูŠ MR A piston. ุนู†ุฏูŠ FN ูˆ ุงู„ู€
62
00:07:12,330 --> 00:07:17,530
WRุŒ ูˆุนู†ุฏูŠ
63
00:07:17,530 --> 00:07:23,050
FQ
64
00:07:23,050 --> 00:07:26,110
ูˆุนู†ุฏูŠ
65
00:07:26,110 --> 00:07:35,530
ุงู„ู„ูŠ ู‡ูŠ ุงู„ frictional force. ูŠุนู†ูŠ ููŠ ุนู†ุฏูŠ force due
66
00:07:35,530 --> 00:07:39,350
to loadุŒ ุฌุงู…ุน ุงู„ pressure ุนู„ู‰ ุงู„ pistonุŒ ูˆููŠ ุงู„
67
00:07:39,350 --> 00:07:43,850
inertia force mr ููŠ ุงู„ accelerationุŒ ูˆููŠ ุนู†ุฏูŠ
68
00:07:43,850 --> 00:07:46,490
fractional forceุŒ ูˆููŠ ุนู†ุฏูŠ ุงู„ normal force ู…ู† ุฌุฏุฑุงู†
69
00:07:46,490 --> 00:07:53,830
ุฃุณุทูˆุงู†ุฉุŒ ูˆููŠ ุนู†ุฏูŠ ูˆุฒู† ุงู„ pistonุŒ ูˆููŠ ุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ ุงู„
70
00:07:53,830 --> 00:07:56,890
force ู…ู† ุงู„ connecting rod ุนู„ู‰ ุงู„ piston
71
00:08:03,400 --> 00:08:06,460
ูŠุนู†ูŠ ุญูƒูŠู†ุง ุงู„ .. ุงู„ .. ุงู„ .. ุงู„ FPุŒ ุงู„ piston
72
00:08:06,460 --> 00:08:11,580
effort ู‡ูŠ ุงู„ net force acting along the line of
73
00:08:11,580 --> 00:08:16,480
stroke. ูŠุนู†ูŠ ุงู„ net force ุจูŠู‡ุฏู‰ ุงู„ุงุชุฌุงู‡ุŒ ู…ุนู†ุงุชู‡
74
00:08:16,480 --> 00:08:26,200
ุงู„ FLุŒ ุงู„ .. ุงู„ .. ุงู„ piston effortุŒ ู‡ุชูƒูˆู† ุงู„
75
00:08:26,200 --> 00:08:33,350
piston effortุŒ ู ุจูŠุณุชู…ุฑ ุฒูŠ ู‡ูŠ net forceุŒ ุนุจุงุฑุฉ ุนู† ุงู„
76
00:08:33,350 --> 00:08:39,210
force due ุช ุงู„ flุŒ ุฅุฐุง
77
00:08:39,210 --> 00:08:44,850
it is acceleratingุŒ ู‡ุชูƒูˆู† minusุŒ ุฅุฐุง
78
00:08:44,850 --> 00:08:47,290
it is deceleratingุŒ ู‡ุชูƒูˆู† plus minus ุงู„ inertia
79
00:08:47,290 --> 00:08:52,250
forceุŒ minus ุงู„ frictional forceุŒ minus ุงู„
80
00:08:52,250 --> 00:08:56,210
frictional forceุŒ ู‡ูŠ RF ู‡ู†ุณู…ูŠู‡ุง
81
00:09:00,000 --> 00:09:07,240
RFุŒ ู‡ูŠู† RF. ู…ุนู†ุงุชู‡ ู‡ุฐุง ุงู„ free body diagramุŒ ู‡ุฐุง ุงู„
82
00:09:07,240 --> 00:09:12,000
original. ู‡ุณูŠุฑ ุจุงู„ุดูƒู„
83
00:09:12,000 --> 00:09:16,600
ู‡ุฐุง ุงู„ู„ูŠ ู‡ูˆ ุงู„ piston effortุŒ ู„ุฃู† ู‡ุงูŠ ุงู„ piston
84
00:09:16,600 --> 00:09:21,600
effort ุนุจุงุฑุฉ ุนู† net force ู†ุงุชุฌุฉ ุนู† ุงู„ load ูˆ ุงู„
85
00:09:21,600 --> 00:09:27,660
energy ูˆ ุงู„ friction. ู‡ุชูƒูˆู† ุนู†ุฏูŠ F pistonุŒ F ุงู„
86
00:09:27,660 --> 00:09:31,540
piston effortุŒ ูˆุนู†ุฏูŠ
87
00:09:31,540 --> 00:09:34,780
ุงู„
88
00:09:34,780 --> 00:09:47,040
F normalุŒ ูˆุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ WRุŒ ูˆุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูŠ F ููŠ Q
89
00:09:47,040 --> 00:09:48,940
ูˆู‡ุฐุง ุงู„ุฒุงูˆูŠุฉ ุนูŠุงุด ููŠ
90
00:09:59,710 --> 00:10:05,150
ู…ุนู†ุงุชู‡ ุฃู† ุงู„ูƒุชุงุจ ู…ุด ู…ุงุถุญุฉ. ุงู„ piston effort ููŠ
91
00:10:05,150 --> 00:10:09,810
ุงู„ุฃุณุงุณ ููŠ ุงู„ free pedagram ุงู„ุฃุตู„ูŠ ุนุจุงุฑุฉ ุนู† ุงู„ load
92
00:10:09,810 --> 00:10:15,130
due to pressure ูˆ ุงู„ inertia force ุงู„ mar ููŠ ุงู„ a
93
00:10:15,130 --> 00:10:18,830
piston ูˆ ุงู„ frictional force. ู…ุนู†ุงุชู‡ ุฃู† ุงู„ piston
94
00:10:18,830 --> 00:10:23,340
effort ู‡ูˆ ุงู„ net forceุŒ ู…ุญุตู„ุฉ fl ูˆ ุงู„ inertia ูˆ ุงู„
95
00:10:23,340 --> 00:10:27,080
friction forceุŒ ุงู„ู„ูŠ ู‡ูŠ F P ุจูŠุณุงูˆูŠ F L minus plus F
96
00:10:27,080 --> 00:10:30,080
I minus R F. ูˆุงุถุญ ุฃู†ู‡ ู„ู…ุง ูƒุงู† ุงู„ piston it is
97
00:10:30,080 --> 00:10:34,460
accelerating along this directionุŒ ูƒุงู†ุช .. ูƒุงู†ุช ุงู„
98
00:10:34,460 --> 00:10:37,640
inertia ุจุงู„ุงุชุฌุงู‡ ู‡ุฐุงุŒ ู…ุนู†ุงู‡ ุฃู† ุงู„ inertia ุจุชุนูƒุณู†ูŠ
99
00:10:37,640 --> 00:10:41,140
when it is acceleratingุŒ ุนุดุงู† ูƒุฏู‡ ุตุงุฑุช minus. ุฅุฐุง ูƒุงู†
100
00:10:41,140 --> 00:10:44,960
deceleratingุŒ ู‡ูŠูƒูˆู† ุจูŠุณุงุนุฏู†ูŠุŒ ู‡ูŠูƒูˆู† ุงู† ุฏูŠ ุจูŠุตูŠุฑ plus
101
00:10:44,960 --> 00:10:46,880
F I minus R F
102
00:10:50,500 --> 00:10:57,980
ุงู„ุขู† ุงู„ inertia forceุŒ ุงู„ inertia forceุŒ ุ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„ mrุŒ ู‡ุงูŠ ุงู„ AP ู‡ุชูƒูˆู† mr
105
00:11:12,660 --> 00:11:24,120
ููŠ omega square r ููŠ cosine thetaุŒ ุฒุงุฆุฏ 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ู‚ูŠุงุŒ ูŠุนู†ูŠ ุงู„ piston ุจุชุชุญุฑูƒ
109
00:11:56,730 --> 00:11:59,930
ุจู‡ุฐุง ุงู„ุงุชุฌุงู‡. ู‡ุฐุง horizontalุŒ verticalุŒ ุ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 ุชุณุงุฑุน ู„ู…ุ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„ู‰ุŒ ู†ู‚ุทุฉ ุจูŠูƒูˆู† ููŠ accelerationุŒ ูˆุจูŠุตูŠุฑ ูู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
partsุŒ ุจุชุนุงูƒุณ ุงู„ force ุนู„ู‰ ุงู„ pistonุŒ ุงู„ู„ูŠ ุจุชุนุงูƒุณ ุงู„
121
00:12:44,040 --> 00:12:47,740
fl. ู…ุนู†ุงุชู‡ ุฃู† ุงู„ุญุงู„ุฉ ุงู„ู„ูŠ ุฅุญู†ุง ุญุงูˆู„ู†ุง ุชูƒูˆู† minus fi
122
00:12:47,740 --> 00:12:50,400
ุฅุฐุง ูƒุงู† ุนู†ุฏูŠ accelerationุŒ ุฅุฐุง ูƒุงู† ุนู†ุฏูŠ retardation
123
00:12:50,400 --> 00:12:54,300
ูŠุนู†ูŠ ุนู†ุฏูŠ acceleration ุจุชุณุงุนุฏู†ูŠุŒ ุ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
pistonุŒ ุ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„ุง ู…ู† ุฏูŠ
128
00:13:15,340 --> 00:13:20,900
accelerationุŒ ุงู„ piston is acceleratingุŒ ุจุชูƒูˆู† plus
129
00:13:20,900 --> 00:13:27,720
ููŠ ุญุงู„ุฉ ุงู„ piston is deceleratingุŒ ุ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„ pressureุŒ ู†ุชูŠุฌุฉ ุงู„
132
00:13:35,570 --> 00:13:40,850
pressure. ู‡ุชูƒูˆู† ุงู„ F loadุŒ ู‡ุงูŠ ุงู„ pistonุŒ ู‡ุงูŠ ุงู„ุทุฑู
133
00:13:40,850 --> 00:13:44,750
ู„ู„ pistonุŒ ูˆู‡ุงูŠ ุงู„ุทุฑู ููŠ ุนู†ุฏูŠ ู‡ุชุณู…ูŠู‡ุง areaุŒ ุงู„ area
134
00:13:44,750 --> 00:13:57,270
ู‡ูŠู† ุจุชูƒูˆู† A1ุŒ ู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
ู„ู„ pistonุŒ ุงู„ P2 ู‡ูˆ ุงู„ pressure ุนูƒุณ ุงู„ pistonุŒ ู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 engineุŒ ูŠุนู†ูŠ ุงู„ piston ูƒุงู† ู…ุชุญุฑูƒ
140
00:14:38,530 --> 00:14:47,090
ุจุงู„ุงุชุฌุงู‡ ุงู„ุฑุฃุณูŠุŒ ุงู„ weight of reciprocating parts
141
00:14:47,090 --> 00:14:54,760
ูˆุฒู† ุงู„ piston ุจุณุงุนุฏู†ูŠ ูˆุฃู†ุง ู†ุงุฒู„ุŒ ูŠุนู†ูŠ ุฌุงูŠ ู…ู† ุงู„ top
142
00:14:54,760 --> 00:14:58,420
of the center ู„ู„ bottomุŒ ุจุณุงุนุฏู†ูŠ ูˆุจุนูƒุณู†ูŠ ูˆุฃู†ุง ุทุงู„ุน
143
00:14:58,420 --> 00:15:02,160
ุจุนูƒุณู†ูŠ ูˆุฃู†ุง ุทุงู„ุน. ููŠ ุงู„ุญุงู„ุฉ ู‡ุฐู‡ ุงู„ piston effort
144
00:15:03,050 --> 00:15:05,550
ูˆุฃู†ุง ู†ุงุฒู„ ู…ู† ุงู„ top dead center ู„ู„ bottom dead
145
00:15:05,550 --> 00:15:10,230
centerุŒ ุงู„ piston will be fl minus plus fi plus or
146
00:15:10,230 --> 00:15:16,030
minus wr minus rf. ูˆุฃู†ุง ู†ุงุฒู„ ุจูŠูƒูˆู† ุนู†ุฏูŠ plus wr
147
00:15:16,030 --> 00:15:20,870
ุจุชุนูƒุณู†ูŠ ุงู„ inertia forceุŒ ูˆุจุณุงุนุฏู†ูŠ ูˆุฒู† ุงู„ pistonุŒ ูˆ
148
00:15:20,870 --> 00:15:25,880
ุงู„ friction ุฏู‡ ุจูŠุนูƒุณู†ูŠุŒ ูˆุฃู†ุง ุทุงู„ุน ุจูŠูƒูˆู† ุนู†ุฏูŠ ุงู„
149
00:15:25,880 --> 00:15:30,660
inertia force ุจุชุณุงุนุฏู†ูŠุŒ ูˆูˆุฒู† ุงู„ .. ุงู„ .. ุงู„
150
00:15:30,660 --> 00:15:34,520
.. ุงู„ piston ุจูŠุนูƒุณู†ูŠุŒ ูˆ ุงู„ friction is always ุฃู†ู‡
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
ู„ุฃู†
153
00:15:49,940 --> 00:15:53,800
ุงู„ FQุŒ ุฃู†ุง ุนู†ุฏูŠ ู‡ู†ุง ุญูƒุงูŠุฉุŒ ุฃู†ุง ุนู†ุฏูŠ ู‡ู†ุง ู‡ุงูŠ
154
00:15:56,830 --> 00:16:06,650
ุงู„ OุŒ ูˆู‡ูŠ ุงู„ CุŒ ู‡ุฐู‡ ุงู„ crankุŒ ูˆู‡ุฐู‡
155
00:16:06,650 --> 00:16:10,550
ุงู„ pistonุŒ ู‡ุฐู‡
156
00:16:10,550 --> 00:16:18,170
P. ู‡ู†ุง ุญูƒูŠู†ุง ุงู„ FQุŒ ุงู„
157
00:16:18,170 --> 00:16:22,530
FQ ุจูŠุณุงูˆูŠ ุงู„ piston effort. ุงู„ FQ
158
00:16:25,720 --> 00:16:29,960
ุจูŠุณุงูˆูŠ ุงู„ piston effortุŒ ุฃูˆ ู†ุญูƒูŠ ุงู„ููŠ ูƒูŠูˆ ูƒูˆุณุงูŠู†
159
00:16:29,960 --> 00:16:35,000
ุงู„ูุงูŠุŒ ุงู„ููŠ ูƒูŠูˆ ูƒูˆุณุงูŠู†
160
00:16:35,000 --> 00:16:41,340
ุงู„ูุงูŠ ุจูŠุณุงูˆูŠ ุงู„ piston effort. ูŠุนู†ูŠ ุงู„ููŠ ูƒูŠูˆ ุจูŠุณุงูˆูŠ
161
00:16:41,340 --> 00:16:51,960
piston effort ุนู„ู‰ ูƒูˆุณุงูŠู† ุงู„ูุงูŠ. ุงู„ุขู†
162
00:16:51,960 --> 00:16:53,080
ู‡ุฐู‡ ุงู„ููŠ ูƒูŠูˆ
163
00:16:56,480 --> 00:17:02,700
ู†ู‚ู„ุช ู„ู‡ู†ุงุŒ ุจุนุฏูŠู† ุญู„ู„ุชู‡ุง ู„ู…ูุฑูƒู‘ุจุฉ ุซุงู†ูŠุฉุŒ ู…ุฑูƒุจุฉ ููŠ
164
00:17:02,700 --> 00:17:14,220
ุงุชุฌุงู‡ ุงู„ูƒุฑุงู†ูƒ FBุŒ ูˆู…ูุฑูƒู‘ุจุฉ ุนู…ูˆุฏูŠุฉ ุนู„ู‰
165
00:17:14,220 --> 00:17:25,970
ุงู„ูƒุฑุงู†ูƒ FT. ุงู„ุฒุงูˆูŠุฉ ู‡ุงุฏูŠุฉ ฮธุŒ ูˆุงู„ุฒุงูˆูŠุฉ ู‡ุฐู‡ Phi. ู…ุนู†ุงุชู‡
166
00:17:25,970 --> 00:17:32,010
ู‡ุฐู‡ ุงู„ุฒุงูˆูŠุฉ ู‡ุชูƒูˆู† ุฒุงูˆูŠุฉ ุฎุงุฑุฌ ุงู„ู…ุซู„ุซุŒ Theta ุฒุงุฆุฏ Phi
167
00:17:32,010 --> 00:17:46,470
ุทูŠุจ
168
00:17:51,810 --> 00:17:57,330
ุงู„ุขู† FQ ุญู„ู„ุชู‡ุง ู„ู…ุฑูƒุจุชูŠู†ุŒ ู…ุฑูƒุจุฉ ุนู…ูˆุฏูŠุฉ ุนู„ู‰ ุงู„ crank
169
00:17:57,330 --> 00:18:10,370
ูˆ ู…ุฑูƒุจุฉ ููŠ ุงุชุฌุงู‡ ุงู„ crank. ุงู„ F T ุจูŠุณุงูˆูŠ
170
00:18:10,370 --> 00:18:15,410
ุงู„ FQุŒ ุงู„
171
00:18:15,410 --> 00:18:19,770
F T ุจูŠุณุงูˆูŠ ุงู„ FQ ูƒูˆุณุงูŠู†
172
00:18:22,660 --> 00:18:32,080
ุงู„ุซูŠุชุง ุฒุงุฆุฏ ููŠ. ูƒูˆุณุงูŠู† ุงู„ุซูŠุชุง ุฒุงุฆุฏ
173
00:18:32,080 --> 00:18:36,100
ููŠุŒ ุ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„ FQุŒ FP ุนู„ู‰ ุงู„ุฌุฐุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ู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 ู‡ุฐุงุŒ ู‡ุชูƒูˆู† sin ฮธ ูƒูˆุณุงูŠู† ููŠ ุฒุงุฆุฏ cos ฮธ
178
00:19:18,290 --> 00:19:34,990
sin ููŠ ุนู„ู‰ cos ููŠ. ูŠุนู†ูŠ ุงู„ F T ู‡ุชุณุงูˆูŠ FP ููŠ sin ฮธ
179
00:19:34,990 --> 00:19:50,310
ุฒุงุฆุฏ cos ฮธ ููŠ sin ููŠ ุนู„ู‰ cos ููŠ. ูŠุนู†ูŠ ู‡ุชุณุงูˆูŠ FP ููŠ
180
00:19:50,310 --> 00:20:04,990
sin ฮธ ุฒุงุฆุฏ cos ฮธ tan Phi. ู„ุฃู† ุฅุญู†ุง ู†ุฑุฌุน ู„ Phi ู‡ุงูŠ
181
00:20:04,990 --> 00:20:14,130
PhiุŒ ู‡ุงูŠ sin ฮธุŒ ูˆู‡ุงูŠ N. ู‡ุฐุง ุงู„ุฌุฐุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ูˆุงุญุฏ ุชุฑุจูŠุน
182
00:20:14,130 --> 00:20:23,570
ู†ุงู‚ุต sin ุชุฑุจูŠุน ุซูŠุชุง. ู…ุนู†ุงุชู‡ tan phi ู‡ุชูƒูˆู†
183
00:20:23,570 --> 00:20:29,930
ุชุณุงูˆูŠ sin ุซูŠุชุง ุนู„ู‰
184
00:20:29,930 --> 00:20:37,410
ุงู„ุฌุฐุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ูˆุงุญุฏ ุชุฑุจูŠุน minus sin ุชุฑุจูŠุน ุซูŠุชุง
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 ุฒุงุฆุฏ cos ฮธ of tan phi. ูŠุนู†ูŠ ู‡ูŠูƒูˆู† cos
187
00:21:02,600 --> 00:21:13,310
ฮธ ููŠ sin ฮธ ุนู„ู‰ ุงู„ุฌุฐุฑ ุงู„ุชุฑุจูŠุนูŠ ู„ูˆุงุญุฏ ุชุฑุจูŠุน minus sin
188
00:21:13,310 --> 00:21:32,990
ุชุฑุจูŠุน ุซูŠุชุง. ู‡ุฐุง ู‡ูˆ ุงู„ Ft ุงู„ุขู†
189
00:21:32,990 --> 00:21:41,810
ุงู„ FtุŒ ุงู„ Torque. ุงู„ F T ู‡ุชุนู…ู„ ุฅูŠู‡ุŸ ุงู„ Torque ู‡ูŠูƒูˆู†
190
00:21:41,810 --> 00:21:49,070
ุงู„ radius ุชุงุน ุงู„ูƒุฑุงู†ูƒ ููŠ ุงู„ F T. ูŠุนู†ูŠ ุงู„ Torque
223
00:25:58,830 --> 00:26:06,150
ู†ุดูˆู
224
00:26:06,150 --> 00:26:07,470
ู…ุซู„ู‹ุงุŒ ู†ุ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 ุฃูˆ ุงู„ู€ inertia force ุฏุง
227
00:26:29,670 --> 00:26:33,470
ุงู„ุจูŠุงู†ุงุช ุงู„ุชุงู†ูŠุฉ ู„ู„ู…ุญุฑูƒ ุงุญุชุฑุงู‚ ุฏุงุฎู„ูŠุŒ ู…ุนุทูŠู†ูŠ ุงู„ู€
228
00:26:33,470 --> 00:26:38,150
bore ุจุชุงุนุฉ ุงู„ู€ piston ู…ุงุฆุฉ ูˆุณุจุนูŠู† ู…ู„ูŠ ู…ุชุฑุŒ ูˆ ุงู„ู€
229
00:26:38,150 --> 00:26:44,210
stroke ู…ุงุฆุชูŠู† ู…ู„ูŠ ู…ุชุฑุŒ ูˆ ุงู„ู€ engine speed ุฎู…ุณู…ุงุฆุฉ rpmุŒ ูˆ
230
00:26:44,210 --> 00:26:48,840
ุงู„ู€ length of connecting rod ุฃุฑุจุนู…ุฆุฉ ู…ู„ูŠุŒ ูˆ ุงู„ู€ crank
231
00:26:48,840 --> 00:26:53,940
angle ุณุชูŠู† ุฏุฑุฌุฉ from inner dead centerุŒ ูˆ ุงู„ู€ mass
232
00:26:53,940 --> 00:26:57,600
of reciprocating parts ู…ุงุฆุฉ ูˆุซู…ุงู†ูŠู† ูƒูŠู„ูˆ ุฌุฑุงู…ุŒ ุงู„ุขู†
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„ู€ pistonุŒ ูŠุนู†ูŠ ู‡ุชูƒูˆู†
235
00:27:08,100 --> 00:27:17,630
mr acceleration ุจุชุงุน ุงู„ู€ piston ู‡ูŠ omega square R ุจ
236
00:27:17,630 --> 00:27:34,550
cos ฮธ ุฒุงุฆุฏ cos 2ฮธ ุนู„ู‰ NุŒ ุงู„ุขู† ุงู„ู€ MR ู…ุนุทูŠู†ูŠู‡ุง ุงู„ู„ูŠ ู‡ูŠ
237
00:27:34,550 --> 00:27:42,150
ูƒุงู… ู‚ูŠู…ุฉ ุงู„ู€ MRุŸ ู…ุงุฆุฉ ูˆุซู…ุงู†ูŠู† ูƒูŠู„ูˆ ุฌุฑุงู…ุŒ ูˆุงู„ู€
238
00:27:42,150 --> 00:27:42,610
Omega
239
00:27:47,150 --> 00:27:54,910
ู…ุนุทูŠู†ูŠ ุงู„ุขู† ู‡ูˆ ู…ุนุทูŠู†ูŠ ุฎู…ุณู…ุงุฆุฉ ููŠ ุงุซู†ูŠู† ุจุงูŠ ุนู„ู‰ ุณุชูŠู†
240
00:27:54,910 --> 00:28:10,950
ูŠุนู†ูŠ ู„ูˆ ุญุณุจู†ุง ุฎู…ุณู…ุงุฆุฉ ููŠ ุงุซู†ูŠู† ุจุงูŠ ุนู„ู‰ ุณุชูŠู†ุŒ ุฎู…ุณู…ุงุฆุฉ
241
00:28:10,950 --> 00:28:14,030
ููŠ
242
00:28:14,030 --> 00:28:21,610
ุงุซู†ูŠู† ููŠ ุซู„ุงุซุฉ point ูˆุงุญุฏ ุฃุฑุจุนุฉุŒ ุชู‚ุณูŠู… ุณุชูŠู†ุŒ ุชุทู„ุน
243
00:28:21,610 --> 00:28:25,790
ุงุซู†ูŠู† ูˆุฎู…ุณูŠู† point
244
00:28:25,790 --> 00:28:32,270
ุซู„ุงุซุฉ radian per secondุŒ ู‡ุฐูŠ ุงู„ู€ omegaุŒ ุงู„ู€
245
00:28:32,270 --> 00:28:36,710
R ู‡ูˆ ุงู„ู€ rate of crankุŒ ุงู„ู€ R ุจูŠุณุงูˆูŠุŒ ุงู„ู€ R ุนุจุงุฑุฉ ุนู†
246
00:28:36,710 --> 00:28:45,270
ุงู„ู€ stroke ุนู„ู‰ ุงุซู†ูŠู†ุŒ ุงู„ู€ stroke ู…ุนุทูŠู†ูŠู‡ุง ู…ุงุฆุชูŠู† ุนู„ู‰
247
00:28:45,270 --> 00:28:47,710
ุงุซู†ูŠู†ุŒ ู…ุงุฆุฉ millimeter
248
00:28:55,670 --> 00:29:02,470
ุงู„ุขู† ุงู„ู„ูŠ ู‡ูŠ ุงู„ู€ L ุนู„ู‰ R ุงู„ู„ูŠ ู…ุนุทูŠู†ูŠู‡ุง ุฃุฑุจุนู…ุฆุฉ
249
00:29:02,470 --> 00:29:11,970
ุนู„ู‰ ู…ุงุฆุฉ ุงู„ู„ูŠ ู‡ูŠ ุฃุฑุจุนุฉุŒ ูˆู…ุนุทูŠู†ูŠ ุงู„ู€ thetaุŒ ุงู„ู€ theta
250
00:29:11,970 --> 00:29:17,070
ู…ุนุทูŠู†ูŠู‡ุง ุณุชูŠู† ุฏุฑุฌุฉุŒ ุณุชูŠู† ุฏุฑุฌุฉุŒ ู…ุนู†ุงุชู‡ ุงู„ู€ inertia
251
00:29:17,070 --> 00:29:23,490
forceุŒ FIุŒ ู‡ุชูƒูˆู†ุŒ ุงู„ู€ MR ุงู„ู„ูŠ ู‡ูŠ ู…ุงุฆุฉ ูˆุซู…ุงู†ูŠู† ููŠ ุงู„ู€
252
00:29:23,490 --> 00:29:27,190
omega square ุงู„ู„ูŠ ู‡ูŠ ุงุซู†ูŠู† ูˆุฎู…ุณูŠู† point ุซู„ุงุซุฉ
253
00:29:27,190 --> 00:29:38,090
ุชุฑุจูŠุนุŒ ููŠ ุงู„ู€ R point ูˆุงุญุฏุŒ ููŠ ุงู„ู€ cosine ุงู„ุณุชูŠู† ุฏุฑุฌุฉ
254
00:29:38,090 --> 00:29:47,430
ุฒุงุฆุฏ cosine ุงู„ู…ุงุฆุฉ ูˆุนุดุฑูŠู† ุฏุฑุฌุฉ ุนู„ู‰ ุฃุฑุจุนุฉุŒ ูŠุนู†ูŠ ู‡ุชูƒูˆู†
255
00:29:47,430 --> 00:29:48,550
ุณุงูˆูŠ ู…ุงุฆุฉ ูˆุซู…ุงู†ูŠู†
256
00:29:56,670 --> 00:30:04,310
ู…ุงุฆุฉ ูˆุซู…ุงู†ูŠู† ููŠ ุงุซู†ูŠู† ูˆุฎู…ุณูŠู† point ุซู„ุงุซุฉ ุชุฑุจูŠุน ููŠ
257
00:30:04,310 --> 00:30:12,030
point ูˆุงุญุฏุŒ ุจุชุทู„ุน ุชุณุนุฉ ูˆุฃุฑุจุนูŠู† ุฃู„ู ูˆุงุซู†ูŠู† ูˆุฎู…ุณุฉ ูˆุซู„ุงุซูŠู†
258
00:30:12,030 --> 00:30:15,310
ูˆ ุซู„ุงุซูŠู† cosine ุณุชูŠู† ุงู„ู„ูŠ ู‡ูŠ ู†ุตู
259
00:30:19,630 --> 00:30:27,930
ู†ุงู‚ุต ู†ุตู ุนู„ู‰ ุฃุฑุจุนุฉุŒ ู†ุงู‚ุต point ูˆุงุญุฏ ุงุซู†ูŠู†
260
00:30:27,930 --> 00:30:37,430
ุฎู…ุณุฉุŒ ูŠุนู†ูŠ ู†ุตู
261
00:30:43,240 --> 00:30:48,300
ู†ุงู‚ุต point ูˆุงุญุฏ ุงุซู†ูŠู† ุฎู…ุณุฉ ููŠ ุชุณุนุฉ ูˆุฃุฑุจุนูŠู† ุฃู„ู
262
00:30:48,300 --> 00:30:57,500
ูˆู…ุฆุชูŠู† ูˆุฎู…ุณุฉ ูˆุซู„ุงุซูŠู†ุŒ ุชุทู„ุน ุซู…ุงู†ูŠุฉ ุนุดุฑ ุฃู„ูุŒ ุฃุฑุจุนู…ุฆุฉ
263
00:30:57,500 --> 00:31:00,700
ูˆุซู„ุงุซุฉ ูˆุณุชูŠู† ู†ูŠูˆุชู†
264
00:31:02,750 --> 00:31:10,390
ูŠุนู†ูŠ ุชู‚ุฑูŠุจู‹ุง ุญูˆุงู„ูŠ ุงุซู†ูŠู† ุทู†ุŒ ูŠุนู†ูŠ ูƒุฃู†ู‡ ุซู‚ู„ ุงุซู†ูŠู† ุทู†
265
00:31:10,390 --> 00:31:14,570
ูƒุฃู†ู‡ ุซู‚ู„ ุงุซู†ูŠู† ุทู†ุŒ ูŠุนู†ูŠ ูˆุงุถุญ ุงู„ู€ inertia forces is
266
00:31:14,570 --> 00:31:19,650
hugeุŒ ูŠุนู†ูŠ ุจุชุดูƒู„ ุฑู‚ู… ูƒุจูŠุฑ ููŠ ุงู„ู€ internal combustion
267
00:31:19,650 --> 00:31:25,670
enginesุŒ ุ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„ ุซุงู†ูŠุŒ 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„ู€ crankุŒ ุงู„ู€ R ุจูŠุณุงูˆูŠ
272
00:31:50,570 --> 00:31:53,270
ุซู„ุงุซู…ุงุฆุฉ ู…ู„ูŠู…ุชุฑ
273
00:31:55,190 --> 00:31:58,190
the mass of reciprocating parts is ู…ุงุฆุชูŠู† ูˆุฎู…ุณูŠู†
274
00:31:58,190 --> 00:32:02,790
kilogramุŒ ูŠุนู†ูŠ
275
00:32:02,790 --> 00:32:12,390
ุงู„ู€ MR ู…ุนุทูŠู†ูŠ ู…ุงุฆุชูŠู† ูˆุฎู…ุณูŠู† kilogramุŒ 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
centerุŒ theta ุจูŠุณุงูˆูŠ
278
00:32:19,870 --> 00:32:29,830
ุณุชูŠู† ุฏุฑุฌุฉุŒุงู„ุ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 ู…ุชุฑุŒ ุทูˆู„ ุงู„ู€
289
00:32:52,070 --> 00:33:00,550
connecting rod ูˆุงุญุฏ .12 ูˆุนุดุฑุฉ ู…ุชุฑุŒ ุงู„ู€
290
00:33:00,550 --> 00:33:07,330
cylinder bore ุงู„ู„ูŠ ู‡ูˆ ุงู„ู‚ุทุฑ ุงู„ู€ cylinder ุงู„ู„ูŠ ู‡ูˆ ู†ุตู
291
00:33:07,330 --> 00:33:14,010
ู…ุชุฑุŒ ุฅุฐุง
292
00:33:14,010 --> 00:33:18,050
ูƒุงู†ุช ุงู„ุณูŠุงุฑุฉ ุชุนู…ู„ ููŠ 250 ุฑุจูŠุงู…ุŒ ุงู„ู€ engine ุงู„ุขู† ุจุชุงุนุฉ
293
00:33:18,050 --> 00:33:25,570
ุงู„ู€ engine ู…ุงุฆุชูŠู† ูˆุฎู…ุณูŠู† rpmุŒ and
294
00:33:25,570 --> 00:33:29,450
if the effects of piston rod is neglectedุŒ ุ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‡ู…ุงู„ู‡ุŒ ุจุฏูƒ ุชุญุณุจ piston effortุŒ ุ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 strokeุŒ ุนุจุงุฑุฉ ุนู†
299
00:33:50,610 --> 00:34:02,930
ุงู„ู€ FL ู†ุงู‚ุต ุฃูˆ ุฒุงุฆุฏ ุงู„ู€ inertia force ุงู„ู„ูŠ
300
00:34:02,930 --> 00:34:06,970
ู‡ูˆ ุญุท ุฑุงุญ ู…ู†ู‡ุง ูƒู…ุงู† ู†ุงู‚ุต ุงู„ู€ frictionุŒ ุนู„ู‰ ูุฑุถ ุชู…
301
00:34:06,970 --> 00:34:13,550
ู‡ู…ู„ ุงู„ู€ frictionุŒ ู‡ุงูŠ ุงู„ู€ piston effortุŒ ู†ุฑุฌุน ู„ู‡ุง ู†ุงู‚ุต
302
00:34:13,550 --> 00:34:19,430
ุงู„ู€ friction horizontalุŒ ู†ุงู‚ุต ุงู„ู€ RF ู„ู€ friction
303
00:34:19,430 --> 00:34:30,690
ุงู„ุขู† ุงู„ู€ load FL ู‡ุชูƒูˆู†ุŒ ุจูŠุณุงูˆูŠ ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ู…ุณุงุญุฉ
304
00:34:30,690 --> 00:34:41,150
ุงู„ู…ู‚ุทุนุŒ ุฏูŠ ุชุฑุจูŠุนุŒ ููŠ delta PุŒ ุจูŠูƒูˆู† ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ููŠ
305
00:34:41,150 --> 00:34:50,080
ุฏูŠ ุชุฑุจูŠุนุŒ ููŠ point ุฎู…ุณุฉ ุชุฑุจูŠุน ููŠ
306
00:34:50,080 --> 00:35:04,060
ุฏู„ุชุง P ุจูŠูƒูˆู† ุซู„ุงุซุฉ ุ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 ููŠ ุจูŠูƒูˆู†
309
00:35:12,720 --> 00:35:15,280
ุฎู…ุณุฉ
310
00:35:19,940 --> 00:35:31,360
ุชู‚ุฑูŠุจู‹ุง ุซู„ุงุซุฉ ุฎู…ุณุฉ ุจูŠุทู„ุน
311
00:35:31,360 --> 00:35:38,900
ุซู…ุงู†ูŠุฉ ูˆุณุชูŠู† ุฃู„ูุŒ ุซู…ุงู†ูŠุฉ ูˆุณุชูŠู† ุฃู„ู ูˆุณุชู…ุงุฆุฉ
312
00:35:38,900 --> 00:35:42,540
ูˆุซู…ุงู†ูŠุฉ ูˆุซู…ุงู†ูŠู† ู†ูŠูˆุชู†
313
00:35:47,870 --> 00:35:58,390
ุงู„ู€ FุŒ ุงู„ู€ inertia forceุŒ ุจูŠุณุงูˆูŠ MR ุฃูˆู…ูŠุฌุง ุณูƒูˆูŠุฑ R
314
00:35:58,390 --> 00:36:10,570
ููŠ cos ฮธ ุฒุงุฆุฏ cos 2ฮธ ุนู„ู‰ NุŒ ุงู„ู€ MR ุฃู†ุง ุนู†ุฏูŠ ู…ุงุฆุชูŠู† ูˆุฎู…ุณูŠู†
315
00:36:10,570 --> 00:36:24,620
ู…ุนุฑูˆูุฉุŒ ุงู„ุฃู…ูŠุฌุง ู‡ุชูƒูˆู† ุนู†ุฏูŠ ู…ุงุฆุชูŠู† ูˆุฎู…ุณูŠู† ุงุซู†ู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 secondุŒ ู‡ุฐุง
318
00:36:44,500 --> 00:36:54,240
ุงู„ู€ omegaุŒ ุงู„ู€ R ู…ุนุทูŠู†ูŠู‡ุง ุซู„ุงุซู…ุงุฆุฉ ู…ู„ูŠุŒ ุงู„ู€ N ุงู„ู„ูŠ ู‡ูŠ L
319
00:36:54,240 --> 00:37:00,740
ุนู„ู‰ RุŒ ุงู„ู€ L ู…ุนุทูŠู†ูŠู‡ุง ูˆุงุญุฏ ูˆุงุซู†ูŠู† ู…ู† ุนุดุฑุฉุŒ ูˆุงู„ู€ R
320
00:37:00,740 --> 00:37:08,200
ุซู„ุงุซุฉ ู…ู† ุนุดุฑุฉุŒ ูŠุนู†ูŠ ุฃุฑุจุนุฉุŒ ุงู„ู€ N ู…ู†ุทู‚ูŠ
321
00:37:08,200 --> 00:37:15,600
ุงู„ู€ FI ู‡ุชูƒูˆู†ุŒ ุงู„ู€ MR ุงู„ู„ูŠ ู‡ูŠ ู…ุงุฆุชูŠู† ูˆุฎู…ุ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
ุชุฑุจูŠุนุŒ ููŠ ุงู„ู€ R ุงู„ู„ูŠ ู‡ูŠ point ุซู„ุงุซุฉุŒ ููŠ cosine ุงู„ุณุชูŠู†
324
00:37:33,050 --> 00:37:40,710
ุฒุงุฆุฏ cosine ุงู„ู…ุงุฆุฉ ูˆุนุดุฑูŠู† ุนู„ู‰ ุฃุฑุจุนุฉ
325
00:37:51,140 --> 00:38:09,500
ู‡ุชูƒูˆู† ุนู†ุฏ ู…ุฆุชูŠู† ูˆุฎู…ุณูŠู†ุŒ ุจุชุทู„ุน
326
00:38:09,500 --> 00:38:13,920
ุชุณุนุฉ ุนุดุฑ ุฃู„ู ูˆ
327
00:38:13,920 --> 00:38:21,200
ู…ุฆุชูŠู† ูˆุงุซู†ูŠู† ูˆุณุชูŠู† ู†ูŠูˆุชู†ุŒ ู‡ุฐู‡ ุงู„ู€ inertia force
328
00:38:21,200 --> 00:38:31,320
ุทุจุนู‹ุง ู‡ู†ุง let us assume ุฃู† RF ู…ู‡ู…ู„ุฉุŒ ุชู‚ุฑูŠุจู‹ุงุŒ ุ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
ุซู…ุงู†ูŠุฉ ูˆุณุชูŠู† ุฃู„ู ูˆุณุชู…ุงุฆุฉ ูˆุซู…ุงู†ูŠุฉ ูˆุซู…ุงู†ูŠู†ุŒ ุงู„ุขู†
331
00:38:45,600 --> 00:38:48,680
ุงุญู†ุง ุณุชูŠู† ุฏุฑุฌุฉ ููŠ ุงู„ู…ุตุฏุฑุŒ ู…ุนู†ุงุชู‡ x ุฏุฑุฌุฉ ู…ุงู‡ูŠ ุชูƒูˆู†
332
00:38:48,680 --> 00:38:53,520
ู†ุงู‚ุตุŒ ู‡ู†ุทุฑุญ ู†ุงู‚ุต ุณุชุฉ ุนุดุฑ ุฃู„ูุŒ ุงุซู†ูŠู† ุณุชุฉ ุงุซู†ูŠู†
333
00:38:53,520 --> 00:38:58,940
ูŠุนู†ูŠ ู‡ุชูƒูˆู† piston effort ุซู…ุงู†ูŠุฉ
334
00:38:58,940 --> 00:39:04,880
ุณุชูˆู† ุฃู„ูุŒ ุณุชุฉ ุซู…ุงู†ูŠุฉ ุซู…ุงู†ูŠุฉุŒ ู†ุงู‚ุต ุณุชุฉ ุนุดุฑ ุฃู„ู ุงุซู†ูŠู†
335
00:39:04,880 --> 00:39:11,440
ุณุชุฉ ุงุซู†ูŠู†ุŒ ุชุทู„ุน ุชุณุนุฉ ูˆุนุดุฑูŠู† ุฃู„ูุŒ ุฃุฑุจุนู…ุฆุฉ ูˆุณุชุฉ ูˆุนุดุฑูŠู†
336
00:39:11,440 --> 00:39:13,380
ู†ูŠูˆุชู†ุŒ ู‡ุฐุง ุงู„ู€ piston effort
337
00:39:22,400 --> 00:39:30,640
ุจุฏูˆ ุงู„ู€ thrust in connecting rodุŒ ูŠุนู†ูŠ ุจุฏู‡ FQุŒ FQ
338
00:39:30,640 --> 00:39:37,380
ุจูŠุณุงูˆูŠ
339
00:39:37,380 --> 00:39:41,460
FB ุนู„ู‰ cos ฮฆ
340
00:39:51,420 --> 00:40:00,340
ุจุณ ุงุญู†ุง ุจู†ุนุฑู cosine ฮฆ ุจูŠุณุงูˆูŠ cosine ฮธ ุนู„ู‰ NุŒ ูŠุนู†ูŠ
341
00:40:00,340 --> 00:40:04,180
cosine
342
00:40:04,180 --> 00:40:15,360
ุงู„ุณุชูŠู† ุนู„ู‰ ุฃุฑุจุนุฉุŒ ู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
ุทูŠุจุŒ ุทูŠุจ ุจุญุณุจ ู…ู†ู‡ุง ุงู„ู€ theta ุจุนุฏ... ุจุญุณุจ ุงู„ู€ ... ุงู„ู€ ...
346
00:41:19,650 --> 00:41:26,850
ุจุญุณุจ ุงู„ู€ ฮฆ ู…ุด ุงู„ู€ thetaุŒ ู…ู†ู‡ุง ุจุญุณุจ ุงู„ู€ ฮฆ ุจุนุฏ
347
00:41:26,850 --> 00:41:31,650
ุจุญุณุจ ุงู„ู€ FQุŒ ุงุฐุง ูˆ FP ุนู„ู‰ cosine ุงู„ู€ ฮฆุŒ FQ
348
00:41:31,650 --> 00:41:35,730
ุงุฐุง ูˆ FP ุนู„ู‰ cosine ุงู„ู€ ฮฆุŒ ุจุฏู†ุง ู†ุญุณุจ ุงู„ู€
349
00:41:35,730 --> 00:41:39,690
tangential forceุŒ ุงู„ู€ FTุŒ ุงู„ู€ FT
350
00:41:50,000 --> 00:41:59,520
ุงู„ู€ FT ู‡ุงูŠ ู…ุนุงุฏู„ุฉ ุงู„ู€ FTุŒ ุงู„ู€
351
00:41:59,520 --> 00:42:05,580
FT ุงู„ู„ูŠ ู‡ูŠ F ุจูŠุณุงูˆูŠ FP
352
00:42:05,580 --> 00:42:08,820
SIN
353
00:42:08,820 --> 00:42:19,830
ุซูŠุชุง ุฒุงุฆุฏ ููŠ ุนู„ู‰ cosine ููŠุŒ ุฃู†ุง ุนุงุฑู ุงู„ู€ FB ูˆุนุงุฑู ุงู„ู€
354
00:42:19,830 --> 00:42:23,650
theta ุงู„ู„ูŠ ู‡ูŠ ุณุชูŠู†ุŒ ูˆุนุงุฑู ุงู„ู€ ููŠ ุงู„ู„ูŠ ุญุณุจุชู‡ุŒ ุจุญุณุจ ุงู„ู€
355
00:42:23,650 --> 00:42:35,390
FTุŒ ูˆุจุนุฏูŠู† ุจุฏู‡ ุงู„ู€ torque T ุจูŠุณุงูˆูŠ R ููŠ ุงู„ู€ FTุŒ ุจูŠุณุงูˆูŠ R
356
00:42:35,390 --> 00:42:39,800
ููŠ ุงู„ู€ FTุŒ ุงู„ู€ crank and connecting rod of a petrol
357
00:42:39,800 --> 00:42:45,300
engine turning at 1800 rpmุŒ ุนู†ุฏ ุงู„ู€ petrol engine
358
00:42:45,300 --> 00:42:53,800
ุณุฑุนุฉ ุงู„ู…ุญุฑูƒ ุชุจุนู‡ ุฃู„ู ูˆุซู…ุงู†ู…ุงุฆุฉ ุฏูˆุฑุฉ ููŠ ุงู„ุฏู‚ูŠู‚ุฉ
359
00:42:53,800 --> 00:43:02,040
ู…ุงุฆุชูŠุŒ ุทูˆู„ ุงู„ู€ crank ุงู„ู€ R ุฎู…ุณูŠู† ู…ู„ูŠุŒ ูˆุทูˆู„ ุงู„ู€
360
00:43:02,040 --> 00:43:08,560
connecting rod ู…ุงุฆุชูŠู† ู…ู„ูŠ ู…ุชุฑุŒ ูŠุนู†ูŠ automatically ู‡ุญุณุจ
361
00:43:08,560 --> 00:43:15,760
ุงู„ู€ N ุจูŠุณุงูˆูŠ L ุนู„ู‰ R ุงู„ู„ูŠ ู‡ูŠ ู…ุงุฆุชุงู† ุนู„ู‰ ุฎู…ุณูŠู† ุจูŠุณุงูˆูŠ
362
00:43:15,760 --> 00:43:19,420
ุฃุฑุจุนุฉุŒ The
363
00:43:19,420 --> 00:43:22,780
diameter of the piston is eighty millimetersุŒ ู‚ุทุฑ
364
00:43:22,780 --> 00:43:31,820
ุงู„ู€ piston ุฏูŠ ุจูŠุณุงูˆูŠ ุซู…ุงู†ูŠู† ู…ู„ูŠู…ุชุฑุŒ The mass of
365
00:43:31,820 --> 00:43:37,860
reciprocating parts is one kilogramุŒ ุงู„ู€ MR ุจูŠุณุงูˆูŠ ูˆุงุญุฏ
366
00:43:37,860 --> 00:43:43,620
point ุงูˆ ูƒูŠู„ูˆ gramุŒ at a point during the power
367
00:43:43,620 --> 00:43:48,720
strokeุŒ ููŠ ู„ุญุธุฉ ููŠ ุงู„ู€ power strokeุŒ pressure in
368
00:43:48,720 --> 00:43:51,500
piston is point ุณุจุนุฉ ู†ูŠูˆุชู† ุนู„ู‰ ุงู„ู€ millimeter square
369
00:43:51,500 --> 00:43:56,200
pressure on pistonุŒ ู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„ู€ pressure P ุจูŠุณุงูˆูŠ ุณุจุนุฉ ุฃู…ูŠุฌุง ุจุงุณูƒุงู„ุŒ When it has
372
00:44:14,050 --> 00:44:17,410
moved ten millimeters from inner dead centerุŒ ูŠุนู†ูŠ
373
00:44:17,410 --> 00:44:23,310
ุงุชุญุฑูƒ ู…ู† ู…ุณุงูุฉ ุนุดุฑุฉ ู…ู„ูŠู…ุชุฑุŒ ูŠุนู†ูŠ X ุจูŠุณุงูˆูŠ ุนุดุฑุฉ
374
00:44:23,310 --> 00:44:28,890
ู…ู„ูŠู…ุชุฑุŒ Determine
375
00:44:28,890 --> 00:44:36,880
net load on pistonุŒ ุจุฏูƒ ุชุญุณุจ ูŠุนู†ูŠ ุจุฏูƒ ุชุญุณุจ ุงู„ู€
376
00:44:36,880 --> 00:44:47,820
piston effortุŒ ุจุฏูƒ ุชุญุณุจ ุงู„ู€ piston effortุŒ ู‡ุ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 loadุŒ ุงู„ู€ piston
379
00:44:57,300 --> 00:45:05,500
effortุŒ ุงู„ู€ FP ุจูŠุณุงูˆูŠ FL ู†ุงู‚ุต ุฃูˆ ุฒุงุฆุฏ ุงู„ู€ inertia
380
00:45:05,500 --> 00:45:11,460
forceุŒ ู†ุงู‚ุต ุงู„ู€ friction forceุŒ let us assume ุฃู† ุงู„ู€
381
00:45:11,460 --> 00:45:19,880
RF ุชู‚ุฑูŠุจู‹ุง is neglectedุŒ zeroุŒ ู…ุนู†ุงุชู‡ ู‡ุชุตูŠุฑ ู‡ุฐู‡ FL
382
00:45:19,880 --> 00:45:23,560
ู†ุงู‚ุต ุฃูˆ ุฒุงุฆุฏ ุงู„ู€ inertia force
383
00:45:29,220 --> 00:45:35,720
ุทูŠุจุŒ ุงู„ู€ FL ู‡ุชูƒูˆู†ุŒ ุจูŠุณุงูˆูŠ ู…ุณุงุญุฉ ู…ู‚ุทุน ุงู„ู€ pistonุŒ ุจุงูŠ ุนู„ู‰
384
00:45:35,720 --> 00:45:41,580
ุฃุฑุจุนุฉ ุฏูŠ square ููŠ ุงู„ู€ pressureุŒ ูŠุนู†ูŠ ู‡ุชูƒูˆู†ุŒ ุฅู† ุงู„ู€ ุจุงูŠ
385
00:45:41,580 --> 00:45:48,440
ุนู„ู‰ ุฃุฑุจุนุฉุŒ ููŠ ุฏูŠุŒ ุงู„ู‚ุทุฑ
386
00:45:48,440 --> 00:45:54,600
ุงู„ุซู…ุงู†ูŠู† millimeterุŒ ููŠ ุซู…ุงู†ูŠู† ุชุฑุจูŠุนุŒ ููŠ ุณุจุนุฉ
387
00:45:55,940 --> 00:46:04,860
ุญุณุจู†ุง ุงู„ู€ FLุŒ ูŠุนู†ูŠ
388
00:46:04,860 --> 00:46:18,540
ุนู†ุฏูŠ ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉุŒ ุชุทู„ุน
389
00:46:18,540 --> 00:46:23,920
ุซู„ุงุซุฉ ุขู„ุงู ูˆุฎู…ุณู…ุงุฆุฉ ูˆุณุจุนุฉ ุนุดุฑุŒ ุซู„ุงุซุฉ ุขู„ุงู ูˆุฎู…ุณู…ุงุฆุฉ
390
00:46:23,920 --> 00:46:31,210
ูˆุณุจุนุฉ ุนุดุฑ ู†ูŠูˆุชู†ุŒ ุงู„ู€
391
00:46:31,210 --> 00:46:40,370
inertia forceุŒ FIุŒ ุฃูˆ ูŠุนู†ูŠ ุงู„ู€ FIุŒ ุงู„ู€ FI ุจูŠุณุงูˆูŠ MR
392
00:46:40,370 --> 00:46:50,910
ููŠ omega square RุŒ ููŠ cosine ฮธ ุฒุงุฆุฏ cosine 2
393
00:46:50,910 --> 00:46:59,360
ฮธ ุนู„ู‰ NุŒ ู„ุฃู† ุฃู†ุง ฮธ ู…ุด ุนุงุฑูู‡ุงุŒ ุจุณ ุนุงุฑู XุŒ ุงู„ู€ X
394
00:46:59,360 --> 00:47:04,440
ุนู†ุฏู‡ุงุŒ ุดูˆ ุจูŠุณุงูˆูŠุŒ ู…ู† X ุจู‚ู‰ ุฃุญุณุจ ุงู„ุซูŠุชุงุŒ ุงู„ู€ X ุจูŠุณุงูˆูŠ R
395
00:47:04,440 --> 00:47:17,680
ููŠ ูˆุงุญุฏ ู†ุงู‚ุต cosine ฮธ ุฒุงุฆุฏ sin ุชุฑุจูŠุน ฮธ ุนู„ู‰
396
00:47:17,680 --> 00:47:32,350
ุงุซู†ูŠู† NุŒ ุงู„ู€ X ุนู†ุฏู‡ุง ูƒุงู…ุŸุนุดุฑุฉุŒ ูˆ ุงู„ู€ R ุฎู…ุณูŠู†ุŒ ุฎู…ุณูŠู†
397
00:47:32,350 --> 00:47:37,930
ููŠ ูˆุงุญุฏ
398
00:47:37,930 --> 00:47:46,470
ู†ุงู‚ุต cosine ฮธ ุฒุงุฆุฏ sin ุชุฑุจูŠุน ฮธ ุนู„ู‰ ุงุซู†ูŠู†
399
00:47:46,470 --> 00:47:51,190
ููŠ NุŒ N ุงู„ู„ูŠ ู‡ูŠ ุฃุฑุจุนุฉ ุญุณุจู†ุงู‡ุง
400
00:48:00,700 --> 00:48:04,240
ุฎู„ูŠู†ูŠ ุฃุจุณุทู‡ุงุŒ ุนุดุฑุฉ ุนู„ู‰ ุฎู…ุณุฉ ุงุซู†ูŠู† ู…ู† ุนุดุฑุฉุŒ ุงุซู†ูŠู† ู…ู†
401
00:48:04,240 --> 00:48:18,100
ุนุดุฑุฉ ุจุชุณุงูˆูŠ ูˆุงุญุฏ ู†ุงู‚ุต cosine ฮธ ุฒุงุฆุฏ point point
402
00:48:18,100 --> 00:
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 ุนู„ู‰ ุณุชูŠู† ุงู„ู
448
00:54:18,550 --> 00:54:26,590
ุชูˆู†ู…ูŠุฉ ูู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 ุฑุงุฏูŠุงู†
450
00:54:31,750 --> 00:54:38,130
ู„ูƒู„ second ูŠุนู†ูŠ ุงู„ FI ู‡ุชูƒูˆู† ู…ู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†ุฏูŠ ุฎู…ุณูŠู† ููŠ point O
453
00:54:51,920 --> 00:54:56,320
ุฎู…ุณุฉ ููŠ cosine theta ุงู„ู„ูŠ ุฃู†ุง ุญุณุจุชู‡ ู…ู† ู‡ู†ุ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 ุ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 ุฃู†ุง ุงุญุณุจ ุงู„ theta ุนุดุงู†
458
00:55:24,600 --> 00:55:26,120
ุฃุนุฑู ุญุงู„ูŠ ุฃู†ุง ูˆูŠู†
459
00:55:47,440 --> 00:55:53,960
ุงู„ู…ุนุงุฏู„ุฉ ุงู„ู„ูŠ ุนู†ุฏูŠ ุงู„ู„ูŠ ู‡ูˆ ุฌุฐุฑ 93.6 ู†ุงู‚ุต 8 ุนู„ู‰ 2
460
00:55:53,960 --> 00:55:59,960
ุฌุฐุฑ 93.6
461
00:55:59,960 --> 00:56:04,560
ุชุญุช
462
00:56:04,560 --> 00:56:14,590
ุงู„ุฌุฐุฑ ู†ุงู‚ุต 8 ุนู„ู‰ 2 ุชุทู„ุน cos ฮธ ุจุชุณุงูˆูŠ point ุชู…ุงู†ูŠุฉ
463
00:56:14,590 --> 00:56:21,050
ุซู„ุงุซุฉ ุณุจุนุฉ ุฃุฑุจุนุฉ point ุซู…ุงู†ูŠุฉ ุซู„ุงุซุฉ point ุซู…ุ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 ุซู…ุงู†ูŠุฉ ุซู„ุงุซุฉ
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 ุซูŠุชุง
469
00:58:00,570 --> 00:58:07,170
ุฃู†ุง ุนู†ุฏูŠ point zero point ุซู…ุงู†ูŠุฉ ุซู„ุงุซุฉ ุ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
ุซู„ุงุซุฉ ูˆ ุซู„ุงุซูŠู† point ุซู„ุงุซุฉ ุนุดุฑ ุซู„ุงุซุฉ ูˆ ุซู„ุงุซูŠู† ุซูŠุชุง
472
00:58:17,910 --> 00:58:25,350
ุซู„ุงุซุฉ ูˆ ุซู„ุงุซูŠู† point ุซู„ุงุซุฉ ุนุดุฑ degree ูŠุนู†ูŠ ุฃู†ุง ู‡ุฃุฎุฐ
473
00:58:25,350 --> 00:58:33,590
ุนู†ุฏูŠ ู‡ู†ุง ููŠ cosine ููŠ cosine ุซู„ุงุซุฉ ูˆ ุซู„ุงุซูŠู† point ุซู„ุงุซุฉ
474
00:58:33,590 --> 00:58:39,170
ุนุดุฑ ุฒุงุฆุฏ cosine ุณุชุฉ
475
00:58:39,170 --> 00:58:47,430
ูˆ ุณุชูŠู† degree ุนู„ู‰ ุนู„ู‰
476
00:58:47,430 --> 00:58:50,930
N ุนู„ู‰ ุฃุฑุจุนุฉ
477
00:58:50,930 --> 00:58:53,030
ูŠุนู†ูŠ ุฃู†ุง ู‡ูŠูƒูˆู† ุนู†ุฏูŠ ุงู„ FI
478
00:59:04,420 --> 00:59:10,020
ุซู„ุงุซุฉ ุนุดุฑ ูƒูˆ ุณุงูŠู† ุฒุงุฆุฏ
479
00:59:32,050 --> 00:59:39,410
ุทูŠุจ ุงู„ู…ู‡ู… ูุจุญุณุจ ุงู„ fi ู…ุถุทุฑ ู„ู‡ุ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
ู†ุงู‚ุต ุ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„ุซุงู†ู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„ูุงูŠ sine ุงู„ูุงูŠ
487
01:00:33,910 --> 01:00:42,630
ุจุณุงูˆูŠ sin ฮธ ุนู„ู‰ n ูŠุนู†ูŠ ู‡ุชูƒูˆู† ุณุงูˆูŠ sin ุงู„ู€ 33.13
488
01:00:42,630 --> 01:00:49,530
ุ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 ู„ุฃู† ู†ุฑูˆุญ ู„ู„ free body diagram
493
01:01:11,500 --> 01:01:23,260
ุจุฏูˆ reaction between piston and cylinder ุฃู†ุ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
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 ุฃุฎุฐุช
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 ู†ุงู‚ุต WR ู†ุงู‚ุต FQ
501
01:02:40,910 --> 01:02:48,150
WR FQ SIN ฮฆ
502
01:03:01,420 --> 01:03:09,140
ูŠุนู†ูŠ WR ู‡ูŠ MR ููŠ G ุฒูŠ FQ ู‡ูŠ ุจุฑุถูˆ Piston Effort FP
503
01:03:09,140 --> 01:03:15,240
ุ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 ุฃู†ุง ุจุฑุถูˆ ุ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
FP ุจุชุณุงูˆูŠ ุงูŠุดุŸ Zero ุจุจุณุงุทุฉ ู‡ู†ุฌุฏ ุนู†ุฏูŠ FP
512
01:04:10,310 --> 01:04:25,230
ุจุชุณุงูˆูŠ Zero ุจุชุณุงูˆูŠ ุงู„ู„ูŠ ู‡ูŠ ู‡ุชูƒูˆู† FL ู†ุงู‚ุต FI
513
01:04:27,900 --> 01:04:30,440
ูŠุนู†ูŠ ู‡ุญู„ ุงู„ู…ุนุงุฏู„ุฉ ู‡ุฐู‡ ุฃู†ุง ู…ุด ุนุงุฑู ู…ู…ูƒู† ุชูƒูˆู† ู†ุงู‚ุต
514
01:04:30,440 --> 01:04:33,180
ุฃูˆ ุฒุงุฆุฏ ู…ุงุฑุงุญ ุฃุญู„ู‡ุง ู†ุงู‚ุต ูˆ ู…ุงุฑุงุญ ุฃุญู„ู‡ุง ุฒุงุฆุฏ
515
01:04:33,180 --> 01:04:40,000
ุงู„ุฃูู‚ุงู„ ุฃุญู†ุง ุนุงุฑููŠู†ู‡ุง ุจุงูŠ ุนู„ู‰ ุฃุฑุจุนุฉ ุ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
ูˆ ุงู„
519
01:04:56,300 --> 01:05:08,180
FI ุงู„ู„ู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 ุฃู†ุง ู‡ุนูˆุถู‡ุง ููŠู‡ุง ุฅุฐุง ุญุณุจุช ุนู†ุฏูŠ ุงู„
521
01:05:13,640 --> 01:05:20,020
zero ุจุชุณุงูˆูŠ ุงู„ุฃูู‚ุงู„ ุงู„ู„ูŠ ู‡ูŠ ุงู„ู„ูŠ ู‡ูŠ ู…ุญุณูˆุจุฉ ุนู„ู‰
522
01:05:20,020 --> 01:05:31,340
ุฃุฑุจุนุฉ d square P ู†ุงู‚ุต mr ุฃูˆู…ูŠุฌุง ุณูƒูˆุงุฑ r ููŠ ูƒูˆุณุงูŠู†
523
01:05:31,340 --> 01:05:41,180
ุซูŠุชุง ุฒุงุฆุฏ ูƒูˆุณุงูŠู† ุชูˆ ุซูŠุชุง ุนู„ู‰ n solve this equation
524
01:05:41,180 --> 01:05:46,660
for omega solve for
525
01:05:46,660 --> 01:05:47,260
omega
526
01:05:55,570 --> 01:06:06,110
solve for omega ุงู‡
527
01:06:06,110 --> 01:06:12,590
solve for omega
528
01:06:12,590 --> 01:06:16,530
ุงุฑุฌุนูˆุง ุงู„ู†ุธุฑ ุญู„ูˆุง ุงู„ุชุงู„ูŠ ุงุฑุฌุนูˆุง ุงู„ู†ุธุฑ ุฑูˆุญูˆุง ุนู„ู‰ ุงู„
529
01:06:16,530 --> 01:06:20,990
math lab go
530
01:06:20,990 --> 01:06:24,670
ุฃูˆ go ุฃูˆ use
531
01:06:26,310 --> 01:06:32,690
math lab ุฃูˆ
532
01:06:32,690 --> 01:06:37,430
Mathematica
533
01:06:37,430 --> 01:06:41,350
ุฃูˆ ุญุณุจ
534
01:06:41,350 --> 01:06:50,890
ุฃูˆ 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 ู‡ูŠ ุชูƒูˆู† ุงู„ variables ุงู„ู„ูŠ ู‡ูŠ ุงู„ FT ูˆ ุงู„ FI
540
01:07:25,250 --> 01:07:46,870
ูˆ ุงู„ FL ูˆ ุงู„ FQ ูˆ ุงู„ FB ูˆ ุงู„ FT versus Theta
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 ู‡ูŠ ุ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 ุฃู†ุง ู‡ุฃู„ุนุจ ููŠ ุฒุงูˆูŠุฉ ุงู„ู„ูŠ .. ุงู„ู„ูŠ
546
01:08:23,850 --> 01:08:26,090
.. ุงู„ู„ูŠ .. ุงู„ู„ูŠ ุญุฃุฎุฐ .. ุงู„ู„ูŠ ุญุฃุฎุฐ ู…ุซู„ุงู‹ ุงู„ F
547
01:08:26,090 --> 01:08:31,790
piston ุจูŠุณุงูˆูŠ FL .. FL ู†ุงู‚ุต FI ูŠุนู†ูŠ ู„ู…ุง ุงู„ ..
548
01:08:31,790 --> 01:08:36,390
ุงู„ piston effort ู„ู…ุง ุงู„ load ุจูŠุณุงูˆูŠ ุงู„ inertia
549
01:08:36,390 --> 01:08:38,270
force ูŠุตุจุญ
550
01:08:42,480 --> 01:08:50,100
ูˆ ุจุญุณุจ ุนู†ุฏ ู†ูุณ ุงู„ุฒุงูˆูŠุฉ ุงู„ู„ูŠ ู‡ูŠ ุงู„ omega ุจุณ ู†ุตูŠุญุชูŠ
551
01:08:50,100 --> 01:08:54,420
ุงุณุชุฎุฏู… MATLAB ุฃูˆ Mathematica Mathcad ุฃูˆ ุฃูŠ
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
ุฃู„ุนุจ ููŠ omega ูƒู…ุงู† ุงู„ุนุจ ููŠ omega ูŠุนู†ู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 ู…ุนูƒ ุงู„ plotting ุจูŠุนุทูŠูƒ more insight
557
01:09:16,060 --> 01:09:19,200
ููŠ ุงู„ .. ููŠ ุงู„ .. ููŠ ุงู„ู…ุซุงู„ ูˆ ุทุจุนุงู‹ ู‡ุฐู‡ ุงู„ ..
558
01:09:19,200 --> 01:09:23,260
ุงู„ู…ุณุฃู„ุฉ ูƒุงู†ุช ู„ู…ูŠูƒุงู†ุฒู… ู…ุณุฃู„ุฉ ู…ู‡ู…ุฉ ุฌุฏุงู‹ ุฌุฏุงู‹ ู„ุฃู†ู‡
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† ุฃูˆ ุ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 ุฃู†ุง ุจุดูˆู ุงู„ู…ุนูŠุฏ ูŠุฃุฎุฐ ู„ูƒู… example ุนู„ู‰ ุฎู…ุณุฉ ุนุดุฑ
563
01:09:44,050 --> 01:09:48,550
ุนุดุฑ ุฎู…ุณุฉ ุนุดุฑ ุฃุญุฏ ุนุดุฑ ุฎู…ุณุฉ ุนุดุฑ ุงุซู†ุง ุนุดุฑ ุงู„ู…ุญุงุถุฑุฉ ุงู„ุฌุงูŠุฉ ู‡ู†ูƒู…ู„
564
01:09:48,550 --> 01:09:49,470
ุฃุนุทูŠูƒู… ุงู„ุนุงููŠุฉ