绳索驱动式环形天线传动系统的动力损耗建模与应用  

Power Loss Modeling and Application of Rope-Driven Loop Antenna Transmission System

作　　者：胡建峰[1] 张大羽 段玉柱 杨军刚[1] 冯涛 段浩 HU Jianfeng;ZHANG Dayu;DUAN Yuzhu;YANG Jungang;FENG Tao;DUAN Hao(China Academy of Space Technology(Xi’an),Xi’an 710100,China)

机构地区：[1]中国空间技术研究院西安分院,西安710100

出　　处：《机械工程师》2023年第3期96-99,共4页Mechanical Engineer

基　　金：国家自然科学基金项目(U1537213)。

摘　　要：传动系统是大型可展开天线的重要组成系统,在其展开过程中起到驱动天线展开的作用。针对绳索驱动式环形天线在轨展开动力损耗问题,基于理论力学及摩擦学原理,分析得到动力绳绕过线轮动力损耗模型,该模型给出了动力绳与过线轮之间分别在静、滑动摩擦工况下的动力绳传动效率计算公式,揭示了摩擦效应对传动系统效率的影响机理;在此基础上,修正了已有绳索驱动式环形天线展开动力学的系统模型,实现了环形天线展开过程精准仿真与实验验证。文中提出的动力损耗模型可为绳索驱动式环形天线的展开设计与优化提供重要理论参考。The transmission system is a critical component system of a large deployable antenna,which drives antenna deployment in its deployment process.With the use of theoretical mechanics and tribological principles,the power loss model of the driving rope around the wire wheel is analyzed.This work gives the calculation formula of driving rope transmission efficiency between driving rope and wire wheel in static and sliding friction conditions,respectively.Also,this model reveals the consequence of friction effect on transmission system efficiency.On this motivation,the rope-driven loop antenna deployment dynamic is thereafter modified.The precise simulation and experimental verification of the loop antenna deployment process are achieved.The power loss model proposed in this paper could offer an essential academic connection for designing and optimizing the deployment of the rope-driven loop antenna.

关 键 词：绳索驱动 传动系统 动力损耗 动力学仿真 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]