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探讨了基于Simulink的航天服便携式生命保障系统建模与仿真方法。采用集总参数法建立了能够计算温度、湿度、CO2浓度等参数的生保系统仿真模型。针对美国现有的舱外航天服生命保障系统建立了瞬态仿真模型,并进行仿真研究。分析仿真结果表明,建立的仿真平台能够较好地预测航天服便携式生保系统的运行状况。建立的模型,具有模块性和通用性,易于扩展,对我国航天服生保系统的研制与优化具有借鉴意义。
The method of modeling and simulation of life support system for spacesuit based on Simulink is discussed. Using the lumped parameter method, a life support system simulation model that can calculate temperature, humidity, CO2 concentration and other parameters was established. A transient simulation model is established for the life support system of the existing spacesuits in the United States and simulation studies are carried out. Analysis of the simulation results show that the simulation platform established can better predict the health condition of the spacesuit portable life insurance system. The established model, which is modular and versatile, is easy to expand and has reference to the development and optimization of China's spacesuits and health insurance systems.