绳系卫星系统的运动与控制

绳系卫星系统的运动与控制分析,是绳系卫星应用的基础。本文的数学模型考虑了作用在子星、主星及系绳上的空气阻力以及在伸展与收回阶段主星与系绳之间的质量传递,给出了相应的具体的计算式。应用该数学模型,本文对现有的几种主要控制法,进行了模拟计算,作出评审意见。

NOTION AND CONTROL OF A TETHERED SATELLITE SYSTEM

This paper presents an approach for the simulation of tether dynamics, a first step for the development of a comprehensive simulation tool. Such a tool is a necessary basis to decide whether it is favourable to use tethers in space scenario. The equations in the paper can describe the in-plane orbital motion of CM of the system and the threedi-mension relative motion of the subsatellite and the main satellite. Air drag acting on the tethered bodies and the tether is considered, and the mass-exchange between the tether and the main satellite during deployment and retrieval is taken into account. The control strategies are investigated and evaluated. Simulations and conclusions are made.