Space missions have become diversified in recent years,where connection and separation devices play a crucial role as key components of various spacecraft.Traditional pyrotechnic devices have the advantages of large carrying capacity,rapid motion and functional reliability.However,their shortcomings such as great release shock,poor safety,unrepeatability and other prominent defects make them unsuitable for new generation spacecraft such as microsatellites to separate at low shock or lock repeatedly,etc.Therefore,it is necessary to develop space non-pyrotechnic low-shock connection and separation devices(SNLD)which are required for advanced aerospace missions.In this paper,the progress of the research on space non-pyrotechnic low-shock connection and separation technology(SNLT)is summarized and reviewed.Proceed from the principle of reducing shock for non-pyrotechnic devices,present studies are classified from the perspective of actuating technology and systematic designing methods.For non-pyrotechnic actuating techniques,according to different driving sources,the separation devices are classified into several main cate-gories:electric,magnetic,gas and thermal actuating devices.The actuation principle and applica-tion prospect of separation techniques are introduced and the working process,dimension and mechanical properties of typical devices are compared and evaluated.For the systematic designing method,the common mechanism types of SNLDs are summarized according to the designing con-cept of reducing shock.Then connection configurations are classified according to the structural forms of connection devices,of which the principles,bearing capacities and general applications are discussed.This paper systematically summarizes the key problems,puts forward the future devel-opment trend of SNLT,and points out the breakthrough direction for related scholars.

Honghao YUE;Yifei YANG;Yifan LU;Fei YANG;Jun WU;Qi RUAN;Zongquan DENG

State Key Laboratory of Robotics and System,Harbin Institute of Technology,Harbin 150001,China

中国航空学报（英文版）

[1]Honghao YUE;Yifei YANG;Yifan LU;Fei YANG;Jun WU;Qi RUAN;Zongquan DENG-.Research progress of space non-pyrotechnic low-shock connection and separation technology(SNLT):A review)[J].中国航空学报（英文版）,2022(11):113-154

SNLT,unrepeatability,SNLD,Proceed,SNLDs

Research,progress,pyrotechnic,low,shock,connection,separation,technology,Space,missions,have,become,diversified,recent,years,where,devices,play,crucial,role,key,components,various,spacecraft,Traditional,advantages,large,carrying,capacity,rapid,motion,functional,reliability,However,their,shortcomings,such,great,release,poor,safety,other,prominent,defects,make,them,unsuitable,new,generation,microsatellites,separate,lock,repeatedly,etc,Therefore,necessary,develop,which,required,advanced,aerospace,In,this,paper,research,summarized,reviewed,from,reducing,present,studies,classified,perspective,actuating,designing,methods,For,techniques,according,different,driving,sources,into,several,main,cate,gories,electric,magnetic,gas,thermal,actuation,prospect,introduced,working,process,dimension,mechanical,properties,typical,compared,evaluated,common,mechanism,types,cept,Then,configurations,structural,forms,principles,bearing,capacities,general,applications,discussed,This,systematically,summarizes,problems,puts,forward,future,opment,trend,points,out,breakthrough,direction,related,scholars

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