Optimization Selection of Regulated Pressurization System Schemes for Liquid Attitude and Divert Propulsion Systems

摘要：

　　The regulated pressurization system is commonly employed to ensure constant propellant tank pressure in order to maintain stable working status of thrusters.A calculation model for the cold gas and warm gas regulated pressurization systems is founded.The model can calculate the parameters of a whole pressurization system and its components.For the given mission requirements of a liquid attitude and divert system,based on the calculation model and genetic algorithm,the optimization selection can be conducted and the best regulated pressurization system scheme can be selected.According to a typical example,the optimization selection process was demonstrated to select the best regulated pressurization system.The results show that the working capacity,envelope volume,working pattern,thermal management,storage performance,technology maturity,especially the propellant tank pressure have great influences on selection of pressurization system schemes.The method of this paper may be used as a reference for practical design of the regulated pressurization system for liquid attitude and divert propulsion systems.

关键词： liquid attitude and divert propulsion system regulated pressurization system optimization selection method

作者: Liu Lie Liang Guozhu

作者单位: School of Astronautics,Beihang University,Beijing 100191,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）