登陆火星飞船“推进系统”的遴选及其物理学性能

THE COMPREHENSIVE OPTION OF THE SPACECRAFT PROPULSION SYSTEMS USING FOR LANDING ON MARS AND ITS PHYSICAL PERFORMANCE

以美国为首的火星登陆计划正受到越来越多的关注."火星之旅"中关键环节是顺利将人类送抵火星.对于火星探测载人飞船,整个飞行过程中需要突破的关键性技术之一是飞船推进系统.文章介绍几种目前在此项目中被广泛接受的飞船推进系统,从物理学原理角度分析飞船推进过程中轨道选择等问题,对几种飞船推进系统及其物理学参数进行了全面的比较和分析,以及飞船推进系统的最佳选择等,以飨读者.

The Mars landing project led by the United States has drawn more and more atten- tion recently. The key point in the trip to Mars is to send humans to Mars successfully. For the manned spacecraft to Mars, one of the key technology breakthroughs is the propulsion systems of spacecraft. In this paper, several propulsion systems of spacecraft widely accepted in this project are introduced. Based on the physical principles, the track selection problem during the process of spacecraft propulsion are discussed. Besides, several kinds of spacecraft propulsion systems and their physics parameters are comprehensively compared and analyzed. The best choice of spacecraft propulsion system is also suggested, as a reference for the read- ers.