第46卷第2期固体火箭技术JournalofSolidＲocketTechnologyVol．46No．22023级间憋压分离电连接器高速斜拉分离过程有限元分析①林三春*，邵超，董瑞涛，付继伟(北京宇航系统工程研究所，北京100076)摘要:航天器级间憋压分离时电连接器高速斜拉分离具有短时高速、大变形、复杂接触、干扰因素多的特点，其分离设计是难点之一。为此，研究了级间憋压分离电连接器高速斜拉分离机理，建立壳体碎片运动微分方程，获得壳体碎片的运动速度和加速度。基于ABAQUS软件，采用多种简化建模方法，建立电连接器高速斜拉分离的高效率计算仿真模型，模拟分离过程分离钢索拉脱、电连接器分离过程的变形和受力情况，仿真得到电连接器高速斜拉状态下可能发生局部断裂，与电连接器高速斜拉试验获得了较为一致的结果。关键词:级间分离;电连接器;分离钢索;高速斜拉分离中图分类号:V421．7文献标识码:A文章编号:1006-2793(2023)02-0328-05DOI:10．7673/j．issn．1006-2793．2023．02．017Finiteelementanalysisofhigh-speedcable-stayedseparationforelectricalconnectorwithinterstagepressure-holdingseparationLINSanchun*，SHAOChao，DONGＲuitao，FUJiwei(BeijingInstituteofAerospaceSystemsEngineering，Beijing100076，China)Abstract:Thehigh-speedcable-stayedseparationofelectricalconnectorduringthespacecraftinter-stagepressure-holdingsep-arationisofshort-timehigh-speed，largedeformation，complexcontactandmanyinterferencefactors．Itsseparationdesignisoneoftheengineeringdesigndifficulties．Themechanismofhigh-speedcable-stayedseparationofelectricalconnectorswiththermalstageseparationwasstudied．Thedifferentialequationofcasefragmentmotionwasestablished，thenthevelocityandinitialvelocityofcasefragmentwereobtained．BasedonABAQUSsoftware，thehigh-efficiencysimulationmodelofhigh-speedcable-stayedsepara-tionofelectricalconnectorwasestablishedusingmanysimplifiedmodelingmethods，soastosimulatecablepulling，deformationandstressintheseparationprocessofelectricalconnector．Thesimulationresultsshowthatthelocalfracturemayoccurinthehigh-speedcable-stayedstateofelectricalconnector，whichisconsistentwiththehigh-speedcable-stayedtestoftheelectricalconnector．Keywords:inter-stageseparation;elect...
