blob: 4fa2729aa74427df5a05fbec06eeef674461ee7b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
-->//(Design against Static Load) Example 4.16
-->//Refer Fig.4.53 on page 123
-->//Load to be raised F (kN)
-->F = 5
F =
5.
-->//Length of short arm l1 (mm)
-->l1 = 100
l1 =
100.
-->//Length of long arm l2 (mm)
-->l2 = 450
l2 =
450.
-->//Tensile yield strength of 30C8 Syt (N/mm2)
-->Syt = 400
Syt =
400.
-->//Factor of safety fs
-->fs = 5
fs =
5.
-->//Permissible bearing pressure at the pin in the lever p (N/mm2)
-->p = 10
p =
10.
-->//Ratio of width to thickness ratio
-->ratio = 3
ratio =
3.
-->//Ratio of length to diameter of the fulcrum pin rf
-->rf = 1.25
rf =
1.25
Diameter of the fulcrum pin(df) = 20.242469 mm
Length of the fulcrum pin(lf) = 25.303086 mm
Force to be applied at the long arm end(P) = 1111.111111 mm
Thickness of the cross-section of the lever(b) = 16.091490 mm
Width of the cross-section of the lever(d) = 48.274469 mm
|
