深空大载荷航天器软着陆气囊制造技术  

Manufacturing Technology for Large Load Spacecraft Soft Landing Airbag

作　　者：杨霞[1,2] 李少腾 贾贺[1,2] 刘乃彬[1] 王垒 YANG Xia;LI Shaoteng;JIA He;LIU Naibin;WANG Lei(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;Laboratory of Aerospace Entry,Descent and LandingTechnology,CASC,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]中国航天科技集团有限公司航天进入、减速与着陆技术实验室,北京100094

出　　处：《深空探测学报（中英文）》2021年第3期324-332,共9页Journal Of Deep Space Exploration

基　　金：载人火星大载重缓冲气囊预研课题(040202)。

摘　　要：结合火星全向软着陆气囊构型及高强度性能要求,研究了深空大载荷航天器软着陆气囊制造技术。以涂覆Vectran囊体材料,运用缝纫、热合等制造工艺分别设计了不同的搭接面结构,通过缝纫和热合的工艺控制过程对9种结构搭接面的力学性能、气密性能开展测试,结果表明:组合式叠缝(20 mm)搭接面构型最优,强度效率高达85.9%。将该搭接面结构应用于深空大载荷飞船软着陆气囊,通过飞船投放回收着陆试验,结果表明:试验效果良好,试验中模型着陆稳定,无侧翻及明显反弹;试验后检查气囊和模型均结构完好,没有出现破损现象,验证了该搭接面构型用于深空大载荷航天器软着陆气囊制造的可行性。Combined with the configuration and high strength performance requirements of Mars omnidirectional soft landing airbag,the paper focuses on a manufacturing technology for a soft landing airbag to land large load spacecraft.This paper takes Vectran high-performance composite material as an example,and uses the characteristics of manufacturing processes such as sewing and heat sealing to design different overlapping surface structures.Through the control of the sewing and heat-sealing process,the mechanical properties and air tightness of 9 kinds of overlapping surface structures are tested,and the optimal structure of the combined lap joint(20mm)lap surface is obtained,and the strength efficiency is high as 85.9%.The overlapping surface structure is used in the manufacturing process of such a landing airbag,and the spacecraft launch recovery landing test is carried out.In the test,the model landing is stable without rollover and obvious rebound.After the test,the airbag and model structure are in good condition without damage.The results verify that the feasibility of the overlapping surface configuration can be used in the manufacture of a landing airbag for large load spacecraft.

关 键 词：深空探测 缓冲气囊 涂覆Vectran囊体材料 成型技术 

分 类 号：V45[一般工业技术—材料科学与工程]