A helical compression spring with squared and ground ends is required to exert a

Question

A helical compression spring with squared and ground ends is required to exert a force of 60.0 Ibf at a length that cannot exceed 2.5 inch, and 105.0 Ibf at a length that is 0.5 inch shorter. This spring must fit inside a 1.5 inch diameter. Loading is static, and yielding should not occur when the spring is set to a solid height. The clash allowance should be 10% of the total working deflection. Use music wire ASTM # A228 for the spring material. Calculate the force required to bring the spring to the solid height, in Ibf.

Explanation / Answer

Force required to bring the spring to the solid height is

F = 105-60

F = 45 lbf

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