Modeling and Simulation of System Dynamics for Spacecraft Propulsion System


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The spacecraft propulsion system is used for geosynchronous orbit transfer, three-axis stabilization and station-keeping. In order to investigate the system dynamics of spacecraft propulsion system with complex pressurization pipelines and propellant supply pipelines, a modular and extensible simulator UPSSim was developed. The pressurant pipelines were separated into several nodes, each node used lumped parameter model; while the propellant feed pipelines used distributed parameter model. Heat transfer between components and environment was also taken into account. The model accurately predicts the transient behavior of the spacecraft propulsion system during start-up and shutdown process, as well as the effect of pipe initial pressure on the priming waterhammer amplitude. The simulation result demonstrates the adequacy of the modular modeling methodology for spacecraft propulsion system dynamic simulation.



Edited by:

Mohamed Othman




Z. Yan et al., "Modeling and Simulation of System Dynamics for Spacecraft Propulsion System", Applied Mechanics and Materials, Vols. 229-231, pp. 2112-2116, 2012

Online since:

November 2012




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