Transfer Functions for Helical Springs

[+] Author and Article Information
B. L. Johnson

Mechanical Engineering Department and Engineering Research Institute, Iowa State University, Ames, Iowa

E. E. Stewart

Chassis Development Group, General Motors Engineering Staff, Warren, Mich.

J. Eng. Ind 91(4), 1011-1016 (Nov 01, 1969) (6 pages) doi:10.1115/1.3591741 History: Received December 27, 1968


This study reports the results of an analytical and experimental investigation of helical springs subjected to vibratory motion. Transfer functions are presented for both displacement and transmitted force as outputs with force as the input. Steady-state sinusoidal Magnitude Ratio (displacement—force) and Transmittance Ratio (force—force) are plotted along with substantiating experimental data. It is shown that an actual spring displays frequency response characteristics over most of the frequency spectrum that would render its function useless in many cases.

Copyright © 1969 by ASME
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