For a motorbike absorber system, a helical compression spring with squared and grounds ends is to be designed with given force and deflection requirement as shown in Figure 4. Given the condition that the preload of motorbike weight, 500 N is loaded on the compression spring and additional load produce deflection of 60 mm. Presetting is to be used. The loading is static. Given that the spring material shear modulus is 79 GPa and shear force correction factor is 1.0644. The clash allowance is 10% of the maximum deflection The tensile 500 N of strength of the spring is 1650 MPa. Determine 500 N 1000 N F, 60 mm Clash allowance Music wire with d = 5 mm Figure 4 (a) the stiffness of the spring. (b) the shear stress (c) the diameter D (d) the number of turns N. (e) the free length L, after unloading

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Question 2
For a motorbike absorber system, a helical compression spring
with squared and grounds ends is to be designed with given
force and deflection requirement as shown in Figure 4. Given
the condition that the preload of motorbike weight, 500 N is
loaded on the compression spring and additional
load produce deflection of 60 mm. Presetting is to be used. The
loading is static. Given that the spring material shear modulus
is 79 GPa and shear force correction factor is 1.0644. The
clash allowance is 10% of the maximum deflection The tensile
500 N of
strength of the spring is 1650 MPa. Determine
500 N
1000 N
F,
60 mm
Clash allowance
Music wire
with d= 5 mm
Figure 4
(a) the stiffness of the spring.
(b) the shear stress
(c) the diameter D
(d) the number of turns N.
(e) the free length L, after unloading
Transcribed Image Text:Question 2 For a motorbike absorber system, a helical compression spring with squared and grounds ends is to be designed with given force and deflection requirement as shown in Figure 4. Given the condition that the preload of motorbike weight, 500 N is loaded on the compression spring and additional load produce deflection of 60 mm. Presetting is to be used. The loading is static. Given that the spring material shear modulus is 79 GPa and shear force correction factor is 1.0644. The clash allowance is 10% of the maximum deflection The tensile 500 N of strength of the spring is 1650 MPa. Determine 500 N 1000 N F, 60 mm Clash allowance Music wire with d= 5 mm Figure 4 (a) the stiffness of the spring. (b) the shear stress (c) the diameter D (d) the number of turns N. (e) the free length L, after unloading
1.8
18
0.5
K, = 1 + (shear correction only,
use for static loading)
1.7-
16
4C -1,0.615
4с-4
(shear and curvature
corrections, use for
fatigue loading)
1.6-
14
1.5
12
1.4
K,C
10
1.3
1.2
' Kw
K,
1.1
1.0l
8
10
12
14
Spring index, C = Dld
Graph 1 The spring index with shear stress correction factors
00
K„C and K,C
6.
4)
2.
$y pue ™y
Transcribed Image Text:1.8 18 0.5 K, = 1 + (shear correction only, use for static loading) 1.7- 16 4C -1,0.615 4с-4 (shear and curvature corrections, use for fatigue loading) 1.6- 14 1.5 12 1.4 K,C 10 1.3 1.2 ' Kw K, 1.1 1.0l 8 10 12 14 Spring index, C = Dld Graph 1 The spring index with shear stress correction factors 00 K„C and K,C 6. 4) 2. $y pue ™y
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