空间飞网两种动力学模型的比较研究

空间飞网由轻质绳索编织, 通过抛撒展开形成一定构型的网, 在空间在轨服 务、飞行器回收、轨道清理、空间拦截等领域具有巨大的应用潜力. 采用非线性有限元 软件ABAQUS建立柔性模型与松弛飞网模型, 对两种飞网模型的抛撒展开进行了对比, 提出了 飞网展开效果的衡量标准, 重点讨论了不同工况下牵引质量块质量、抛射角度、抛射速度和 绳索等效阻尼的影响. 仿真表明, 松弛模型的展开效果优于柔性模型; 牵引质量块质量、抛 射速度与绳索结构阻尼主要决定飞网的展开, 抛射角度是影响飞网在预定位置展开面积的关 键因素.

SIMULATION AND COMPARISON OF DIFFERENT DYNAMICAL MODELS OF SPACE WEBS

Space webs which have great potential applications in orbit Service,recovery of spacecraft,orbit cleaning,space interceptor,woven from lightweight and pliable rope,are webs of unstable configuration formed by throwing and spreading.This paper adopts the finite element software ABAQUS in order to model the system of elastic webs and the system of flexible webs,compares the projecting of two finite element models,proposes metrics on the deployable of webs' system and focuses on traction mass,projectile point,...