KM6水平舱环境控制系统(英文)  

The environment control system of the KM6 horizontal chamber

作　　者：李春阳 庞贺伟[2] 陈金明 

机构地区：[1]北京卫星卫星工程研究所,北京100094 [2]中国空间技术研究院,北京100094

出　　处：《航天器环境工程》2008年第1期59-63,共5页Spacecraft Environment Engineering

摘　　要：为满足中国载人航天的需求,研制了可进行人-船-服联合试验的大型空间环境模拟设备——KM6水平舱。文章介绍了该模拟设备的环境控制系统。它有两大功能:一是为舱内参试人员提供气体和应急救生用气;二是控制试验环境,包括对各种环境参数的控制,如控制舱内温度、湿度、压力、局部氧气压力,清除舱内气态污染物。在对水平舱减压时,不仅要注意每一项参数的控制稳定性,还要注意对所有参数的整体控制,因为这些参数是互相关联的。为了研究这些参数之间的关系,对该舱建立了数学模型,得出了不同边界条件下的最优控制方案。With the improvement of the manned space technology in China,a large space environment simulation test facility,the KM6 horizontal chamber,is under development,in which integrated tests of man,suit,and vehicle can be conducted. This paper will describe the environment control system (ECS) of the test facility. According to the requirement of the proposed tests,the ECS should firstly supply desired gases,namely,oxygen,nitrogen,or the oxygen-nitrogen mixture,for the test crew and the test vehicle in the chamber,and then take charge of the environment control for the test chamber and the test space vehicle under specific circumstances. For the function of supplying gases,the ECS should consider the emergency oxygen supply for the test crew inside the test chamber in case that the backpack life support system fails,besides the normal air supply according to the proposed ends. The function of the environment control covers the control of various parameters of the chamber environment such as temperature,humidity,chamber pressure,oxygen partial pressure,and the removal of the gaseous contaminant. Not only one has to pay attentions to the stable control of each parameter,but also one should put special emphasis on the overall control of all above parameters during the depressurization of the test chamber because these parameters are closely coupled. In order to study the relationship between them,a mathematical model for the controlled chamber is built up. From results obtained under different boundary conditions,the optimum control scheme is mapped out.

关 键 词：环境控制 空间环境模拟 km6水平舱 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]