5- A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with aspring index of C 5 10. The spring is to operate inside a hole, so buckling is not a problem and theends can be left plain. The free length of the spring should be 80 mm. A force of 50 should deflectthe spring 15 mm.9th ofDetermine the spring rate.b) Determine the minimum hole diameter for the spring to operate in.c)Determine the total number of coils needed.d)Determine the solid length.e) Determine a static factor of safety based on the yielding of the spring if it is compressed toits solid length.

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A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a index of C 5 10. The spring is to operate inside a hole, so buckling is not a problem and the an be left plain. The free length of the spring should be 80 mm. A force of 50 should deflect ing 15 mm. Determine the spring rate. Determine the minimum hole diameter for the spring to operate in. Determine the total number of coils needed. 2010

A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a index of C 5 10. The spring is to operate inside a hole, so buckling is not a problem and the an be left plain. The free length of the spring should be 80 mm. A force of 50 should deflect ing 15 mm. Determine the spring rate. Determine the minimum hole diameter for the spring to operate in. Determine the total number of coils needed. 2010

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

5- A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a
spring index of C 5 10. The spring is to operate inside a hole, so buckling is not a problem and the
ends can be left plain. The free length of the spring should be 80 mm. A force of 50 should deflect
the spring 15 mm.
9th of
Determine the spring rate.
b) Determine the minimum hole diameter for the spring to operate in.
c)
Determine the total number of coils needed.
d)
Determine the solid length.
e) Determine a static factor of safety based on the yielding of the spring if it is compressed to
its solid length.

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