Dynamic Modeling of Gas Springs

[+] Author and Article Information
A. A. Kornhauser

Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

J. Dyn. Sys., Meas., Control 116(3), 414-418 (Sep 01, 1994) (5 pages) doi:10.1115/1.2899236 History: Received June 21, 1991; Online March 17, 2008


Linear dynamic modeling of gas springs is important for basic design of free piston Stirling engines. The conventional gas spring model, a dashpot in parallel with an ideal spring, gives poor prediction of gas spring performance. The anelastic model presented here consists of two parallel springs, one of which is in series with a dashpot. With proper selection of spring and damping constants, it gives improved prediction of gas spring dynamics.

Copyright © 1994 by The American Society of Mechanical Engineers
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