文章摘要
引用本文:张峤, 刘冬雨, 罗超, 魏传锋.密封舱内漂浮小球运动规律的数值模拟研究[J].航天器环境工程,2018,35(4):323-329 本文二维码信息
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密封舱内漂浮小球运动规律的数值模拟研究
Numerical analysis of the movement characteristics of floating balls in a pressurized cabin
投稿时间:2018-04-16  修订日期:2018-07-18
DOI:10.3969/j.issn.1673-1379.2018.04.003
中文关键词:  密封舱  在轨维修  机械臂操作终端  数值模拟  动网格
English Keywords:sealed cabin  in-orbit maintenance  space manipulating terminal  numerical simulation  dynamic meshes
基金项目:国家重大科技专项工程
作者单位
张峤, 刘冬雨, 罗超, 魏传锋 中国空间技术研究院 载人航天总体部, 北京 100094 
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中文摘要:
      “天宫二号”空间实验室开展了首次人机协同在轨维修技术试验,机械臂操作终端抓取漂浮小球试验为在轨试验任务之一。为研究漂浮小球与机械臂操作终端运动特性之间的匹配性,文章建立了在轨微重力环境下小球运动的物理模型与数学模型,采用动网格方法对不同小球的运动特性进行数值模拟,得到小球的运动规律,由此确定小球的设计参数范围,作为机械臂操作终端系统方案设计的依据。最终,数值模拟结果与“天宫二号”空间实验室在轨试验数据的对比初步验证了该计算结果的正确性。
English Summary:
      The first man-machine cooperative test for in-orbit maintenance is conducted in China's Tiangong-2 space laboratory. One task of the mission is to grab a floating ball by the space manipulator terminal. In order to investigate the characteristics of the relative movement between the space manipulator terminal and the floating ball, a physical and a mathematical model are established, respectively. Numerical simulations by the dynamic mesh method are carried out to study the movement of the floating ball under different conditions in the micro-gravity environment. The parameters for the floating balls are determined, as a basis for the systematic design of the space manipulator terminal. Finally, the simulation result is compared with the in-orbit test data, which verifies the method in this paper.
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