VIBRATION CHARACTERISTICS OF THE HPOTP (HIGH PRESSURE OXYGEN TURBOPUMP) OF THE SSME (SPACE SHUTTLE MAIN ENGINE).
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A review is presented of various rotordynamic problems which have been encountered and eliminated in developing the current flight engines, and continuing subsynchronous problems which are being encountered in developing a 109% power level engine. The basic model for the HPOTP including the structural dynamic model for the rotor and housing and component models for the liquid and gas seals, turbine-clearance excitation forces, and impeller-diffuser forces are discussed. Results from a linear model are used to examine the synchronous response and stability characteristics of the HPOTP.
author list (cited authors)
Childs, D. W., & Moyer, D. S.