上海交通大学学报(自然版)

• 航空、航天 • 上一篇    下一篇

电动力绳系离轨系统中绳索动力学研究

孔宪仁,徐大富,廖俊,王本利
  

  1. (哈尔滨工业大学 卫星技术研究所, 哈尔滨 150001)
  • 收稿日期:2009-12-15 修回日期:1900-01-01 出版日期:2010-11-30 发布日期:2010-11-30

Tether Dynamic Research of Electrodynamic Tether Deorbiting System

KONG Xianren,XU Dafu,LIAO Jun,WANG Benli
  

  1. (Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150001, China)
  • Received:2009-12-15 Revised:1900-01-01 Online:2010-11-30 Published:2010-11-30

摘要: 基于电动力绳系离轨系统动力学建模问题,提出了一种考虑绳索弯曲变形特性的柔索模型.该模型可以反映在电动力拉力和重力梯度力作用下绳索的弯曲变形情况,以及绳索变形后对感应电动势和电动力拉力的影响,利用算例比较了柔索模型和其他常用哑铃模型的差异.同时,借鉴海底拖曳系统中绳索的建模方法,建立反映电动力绳系在离轨过程中振动情况的绳索振动模型.仿真结果表明,横向振动是电动力绳系在离轨过程中的主要振动形式.

关键词: 电动力绳系, 离轨, 电动力拉力, 柔索模型, 横向振动

Abstract: Considering inflecting effect, this paper presents a flexible cable model, which can be used for analyzing the dynamic behavior of the electrodynamic tether (EDT) deorbiting system. The model can describe tether inflecting and bowing under action of electrodynamic drag and gravity gradient induced force, and the influences on electro motive force and electrodynamic drag. Two mathematical simulations are employed to show the differences between the flexible cable model and the drumbell model. Vibration of the EDT system during deorbiting course is discussed. The simulation result shows that vertical response is the main vibration of EDT.

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