(9) A Mercedes Benz gas engine valve spring should not exceed to a cylindrical space of 134-in in diameter. The spring index is 6.0 & the maximum load it will have to sustain is 100lb with corresponding deflection of 2-in. The spring is subjected to repeated loading & fatigue must be considered, a low working stress of 40,110psi will be used. Determine: (a) the diameter of wire based on commercial sizes; (b) the number of coils.

(9) A Mercedes Benz gas engine valve spring should not exceed to a cylindrical space of 134-in in diameter. The spring index is 6.0 & the maximum load it will have to sustain is 100lb with corresponding deflection of 2-in. The spring is subjected to repeated loading & fatigue must be considered, a low working stress of 40,110psi will be used. Determine: (a) the diameter of wire based on commercial sizes; (b) the number of coils.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.7.1P: A high-strength steel bar used in a large crane has a diameter d = 2.00 in. (sec figure). The steel...

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(9) A Mercedes Benz gas engine valve spring should not exceed to a cylindrical space of 1¾-in in diameter. The spring index is 6.0 & the maximum load it will have to sustain is l00lb with corresponding deflection of ½-in. The spring is subjected to repeated loading & fatigue must be considered, a low working stress of 40,110psi will be used. Determine: (a) the diameter of wire based on commercial sizes; (b) the number of coils.