面向“嫦娥七号”飞跃器任务的宽温区转动阻力矩原位测试方法  

In-situ test method for rotational resistance torque in extreme temperature range based on the Chang’e-7 leaper

作　　者：马晓荔 周原 马龙[1,2] 韩知非 闫琦[1,2] 许亚娟 丁磊 居楠[1,2] 徐宏贵 MA Xiaoli;ZHOU Yuan;MA Long;HAN Zhifei;YAN Qi;XU Yajuan;DING Lei;JU Nan;XU Honggui(Science and Technology on Reliability and Environmental Engineering Laboratory,Beijing 100094,China;Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China;Beijing Institute of Control Engineering,Beijing 100094,China)

机构地区：[1]可靠性与环境工程技术重点实验室,北京100094 [2]北京卫星环境工程研究所,北京100094 [3]北京控制工程研究所,北京100094

出　　处：《航天器环境工程》2025年第1期85-90,共6页Spacecraft Environment Engineering

基　　金：国防科技重点实验室稳定支持科研项目(编号:WDZC614200420230401)。

摘　　要：为测量“嫦娥七号”飞跃器舱外低频绑扎线缆在月球极端环境下对关节运动的阻力矩,文章提出一种在-195~120℃温度环境下原位测量关节旋转附加阻力矩的方法,设计了由驱动模拟与测试系统、温度模拟与控制系统组成的测试装置并测量了8种温度工况下有/无绑扎线缆的旋转阻力矩。测试结果表明,由于转动配合面与线缆多点位绑扎工艺的复杂性,温度对阻力矩的影响并非线性规律,所以需要在所关心的全温区开展相应的测试;同时,在-150℃及更低的深低温条件下,线缆扭力产生的阻力矩值会快速升高,应加以关注。该研究方法对航天型号验证线缆选型及温度环境对关节旋转造成的阻力矩影响有借鉴意义。To measure the resistance torque exerted by the extravehicular low-frequency lashing cables on the joint movement of the Chang’e-7 leaper in the extreme lunar environment,an in-situ method for measuring rotational resistance torque within a temperature range of-195℃to 120℃was proposed.A test device,equipped with a drive system and a temperature control system,was designed.Rotational resistance torque measurements,with and without lashing cables,were conducted at eight different temperature settings.The test results show that due to the complexity of the multi-point lashing process between the rotating mating surface and the cable,the effect of temperature on the resistance torque is non-linear,requiring tests across the entire temperature range of interest.Additionally,at temperatures below-150℃,the torque generated by cable torsion increases rapidly,necessitating careful attention.This research method holds practical implications for selecting cables suitable for aerospace applications and for understanding the effects of temperature on the resistance torque during joint rotation.

关 键 词：舱外低频绑扎线缆 宽温区环境 旋转阻力矩 原位测试 试验验证 

分 类 号：V443[航空宇航科学与技术—飞行器设计]