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Improved Dynamic Modeling of a SpaceShuttle Turbo-Pump
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Sector:
Event:
Aerospace Meeting
Language:
English
Abstract
The dynamic response of turbo-pumps has traditionally been modeled mathematically using electrical networks. A recently developed computer program is used herein to adjust the model parameters (L - inductance, R - resistance, C - capacitance, etc.) of the electrical network in an attempt to bring the analytical response of the network into closer agreement with newly-available experimental results. Results are presented for a fully-wetted (non-cavitating) test of a Space-Shuttle Turbo-Pump and a significant improvement in the dynamic model is achieved.
Authors
Citation
Evensen, D. and Chrostowski, J., "Improved Dynamic Modeling of a SpaceShuttle Turbo-Pump," SAE Technical Paper 770960, 1977, https://doi.org/10.4271/770960.Also In
References
- Sheldon-Rubin “Longitudinal Instability of Liquid Rockets Due to Propulsion Feedback (POGO),” Journal of Spacecraft and Rockets 3 8 August 1966 1188 1195
- Ng, Sheung-Lip “Dynamic Response of Cavitating Turbo-machines,”Division of Engineering and Applied Science, California Institute of Technology Pasadena, California, 91109 Report No. E 183.1 August 1976
- Evensen D. A. Chrostowski J. D. Hasselman T. K. “Model Verification of Mixed Dynamic Systems,” J. H. Wiggins Company Technical Report 77-1257 June 1977
- Collins J. D. Hart G. C. Hasselman T. K. Kennedy B. “Statistical Identification of Structures,” AIAA Journal 12 2 February 1974 185 190
- Acosta A.J. Brennen C. Braisted D. “Data from the Dynamic Pump Test Facility on the Model of the LPOTP Shuttle Impeller,” Informal Report California Institute of Technology February 4 1977
- Rubin S. “Preliminary Study of a 1/4Scale LPOP Four-Terminal Data,” 14th Space Shuttle POGO Integration Panel Meeting Michoud, Louisiana October 21 22 1976