嫦娥五号轨道器3000 N发动机高温隔热屏设计  

Heat Shield Design for 3 000 N Engine of Chang’e-5 Orbiter

作　　者：张彧[1] 高天 刘冈云[1] 赵吉喆 ZHANG Yu;GAO Tian;LIU Gangyun;ZHAO Jizhe(Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海卫星工程研究所,上海201109

出　　处：《上海航天（中英文）》2022年第S01期27-32,共6页Aerospace Shanghai（Chinese&English）

基　　金：探月工程重大科技专项资助

摘　　要：针对嫦娥五号轨道器3000 N发动机工作会导致周围结构温度偏高的问题,进行发动机热防护设计。采用高温隔热屏、中高温多层隔热组件、隔热垫等热控措施,解决了3000 N发动机热防护设计问题,并对热防护设计进行了仿真分析和热试车验证。仿真和试验结果表明隔热屏能有效阻隔3000 N发动机的热影响,验证了热防护设计的有效性。A heat shield for 3000 N engine of Chang’e-5 orbiter is designed to solve the problem of high temperature in components around the engine caused by engine operation.Several measures of thermal control are used to settle the thermal protection problem,e.g.,heat shield for high temperature,multilayer insulation components for medium-high temperature,and thermal isolators,the thermal simulation and hot-firing test are performed to verify the thermal protection design.The simulation and test results show that the heat shield can effectively block the thermal impact of 3000 N engine,verifying that the thermal protection design is valid.

关 键 词：3000 N发动机 热防护 高温隔热屏 中高温多层隔热 热试车 

分 类 号：V476.3[航空宇航科学与技术—飞行器设计]