Resonance in Liquid Rocket Engine Systems

[+] Author and Article Information
R. H. Fashbaugh

Mechanical Engineering Department, University of Colorado, Boulder, Colo.

V. L. Streeter

University of Michigan, Ann Arbor, Mich.; Martin-Marietta Co.

J. Basic Eng 87(4), 1011-1017 (Dec 01, 1965) (7 pages) doi:10.1115/1.3650792 History: Received March 24, 1965; Online November 03, 2011


A transient flow analysis of a longitudinal vibration in a liquid rocket engine propellent feed system and its supporting structural framework is described, together with supporting experimental tests. Nonlinear friction losses are used in the partial differential equations of continuity and momentum describing the unsteady flow. These equations are solved by the methods of characteristics and placed in form suitable for digital computation. The turbopump steady-state characteristic curves are used to find the transient pressure rise across the pump, and the effects of pump inlet cavitation are estimated from experimental data.

Copyright © 1965 by ASME
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