Actual Popping Pressure of a Relief Valve With a Real Helical Spring Under Dynamic Load

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

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

D. E. Wandling

Mechanical Engineering Department, Iowa State University, Ames, Iowa

J. Eng. Ind 91(4), 1142-1146 (Nov 01, 1969) (5 pages) doi:10.1115/1.3591762 History: Received December 27, 1968


This paper presents the describing equations of a poppet-type relief valve with a real helical spring, that is, a spring having distributed mass. The sinusoidal analysis shows that the actual popping pressure is very frequency dependent and may occur at pressures that are a fraction of the static popping pressure to twice that value. Experimental data which verify the theory are also presented.

Copyright © 1969 by ASME
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