Research on Modeling and Visualization of Mars Orbiter Propulsion System

Aiming at the demand for co-simulation demonstration of a liquid propulsion system, based on the modular modeling idea, and according to conservation equations and state equations, this paper uses AMESim to develop a general liquid rocket engine component module library and establish a propulsion system simulation model, and uses Simulink and LabVIEW to design a simulation control module and the visual model, thus building the co-simulation environment and platform. Combining the mission requirements and specific composition of the Mars orbiter propulsion system, the co-simulation of the Mars orbiter propulsion entire system is realized and the results are visualized. The reliability of the system simulation model is verified according to the ground test data. The results show that the maximum error of components does not exceed 5.6%, and the maximum error of thrust does not exceed 1.29%.The visual model can display the real-time working status of various engine components, and display the simulation results more intuitively. The co-simulation platform can effectively realize the integration of propulsion system model, control and visualization, accelerate the simulation speed, shorten the design cycle of the system, reduce the complexity of the system design, improve the versatility of the model, reduce the research and development cost, and improve the design level of the liquid rocket engine. The research content provides a useful reference for the research and future development of spacecraft propulsion system. © 2022, Editorial Dept. of JA. All right reserved.