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随着载人航天、深空探测的发展,探测器的地外天体发射起飞越来越多。发动机喷射的羽流所诱发的冲击振动以及反溅气流对上升级的气动力干扰,均对探测器的起飞稳定性造成不利的影响,同时也对探测器产生一定的热冲击效应。文章结合真空羽流场的流动特点和目前的研究现状,提出了基于地外天体起飞的真空羽流导引技术的研究思路、研究方法和研究路线;针对羽流导引方案,采用数值仿真和地面模拟试验相结合的方法进行了评价分析,确定了最优方案。真空羽流导引技术研究方案在某型号项目中的实施取得了良好的效果,证明了本研究思路的正确性。
With the development of manned space flight and deep space exploration, the extraterrestrial objects of the detector take off more and more. The impact vibration induced by the plume injected by the engine and the aerodynamic interference of the sparge flow on the ascending stage both adversely affect the take-off stability of the detector and also have a certain thermal shock effect on the detector. Combining with the characteristics of current flow in vacuum plume and the current research status, this paper presents the research ideas, research methods and research routes of vacuum plume guidance technology based on extraterrestrial celestial bodies. For the plume guidance scheme, the numerical simulation and Ground simulation test combined with the method of evaluation and analysis to determine the optimal solution. The implementation of vacuum plume guidance technology research program in a certain type of project has achieved good results, proving the correctness of this research idea.