航天返回与遥感
航天返迴與遙感
항천반회여요감
SPACECRAFT RECOVERY & REMOTE SENSING
2012年
2期
16-22
,共7页
全向气囊%着陆缓冲装置%动力学仿真%原理样机试验
全嚮氣囊%著陸緩遲裝置%動力學倣真%原理樣機試驗
전향기낭%착륙완충장치%동역학방진%원리양궤시험
omni-direction airbag%landing cushioning device%dynamics simulation%breadboard test
全向气囊是一种适应性较强的着陆缓冲装置,能在火星着陆过程中有效保护着陆器的安全。文章针对某一种全向气囊与着陆器构型方案,首先建立了气囊和着陆器结构的数学有限元模型,并对全向气囊的着陆缓冲过程进行了动力学仿真,获取重要结构部位的缓冲过载。其次利用全向气囊原理样机,按照仿真时的工况进行了投放试验,测量了相应结构部位的缓冲过载。研究结果表明,理论分析与试验结果基本一致,可为将来火星全向气囊的工程应用研究提供一定的参考。
全嚮氣囊是一種適應性較彊的著陸緩遲裝置,能在火星著陸過程中有效保護著陸器的安全。文章針對某一種全嚮氣囊與著陸器構型方案,首先建立瞭氣囊和著陸器結構的數學有限元模型,併對全嚮氣囊的著陸緩遲過程進行瞭動力學倣真,穫取重要結構部位的緩遲過載。其次利用全嚮氣囊原理樣機,按照倣真時的工況進行瞭投放試驗,測量瞭相應結構部位的緩遲過載。研究結果錶明,理論分析與試驗結果基本一緻,可為將來火星全嚮氣囊的工程應用研究提供一定的參攷。
전향기낭시일충괄응성교강적착륙완충장치,능재화성착륙과정중유효보호착륙기적안전。문장침대모일충전향기낭여착륙기구형방안,수선건립료기낭화착륙기결구적수학유한원모형,병대전향기낭적착륙완충과정진행료동역학방진,획취중요결구부위적완충과재。기차이용전향기낭원리양궤,안조방진시적공황진행료투방시험,측량료상응결구부위적완충과재。연구결과표명,이론분석여시험결과기본일치,가위장래화성전향기낭적공정응용연구제공일정적삼고。
The omni-direction airbag is a type of cushioning device for Mars landing with high adaptability,which could prevent Mars lander from damage effectively.In this paper,aiming at one type of omni-direction airbags,the structural design and landing mathematic and mechanical model are established by use of modern FEM analysis technology.The simulation process is developed,and the overload of important structural parts are obtained.Then the principle pattern of the omni-direction airbag is used in dropping experiment,whose experimental condition is the same as that in the simulation.And the overload of corresponding structural parts are obtained.The result demonstrates the good conformity between theoretics analysis and dropping experiment,and can help to carry out the applicational research of the Mars omni-direction airbag.
