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密封舱内漂浮小球运动规律的数值模拟研究
引用本文:张峤, 刘冬雨, 罗超, 等. 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): 323-329doi:10.12126/see.2018.04.003
作者姓名:张峤  刘冬雨  罗超  魏传锋
作者单位:中国空间技术研究院 载人航天总体部,北京 100094
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。

关 键 词:密封舱   在轨维修   机械臂操作终端   数值模拟   动网格
收稿时间:2018-04-16
修稿时间:2018-07-18

Numerical analysis of the movement characteristics of floating balls in a pressurized cabin
ZHANG Q, LIU D Y, LUO C, et al. Numerical analysis of the movement characteristics of floating balls in a pressurized cabin[J]. Spacecraft Environment Engineering, 2018, 35(4): 323-329doi:10.12126/see.2018.04.003
Authors:ZHANG Qiao  LIU Dongyu  LUO Chao  WEI Chuanfeng
Affiliation:Institute of Manned Space System Engineering, China Academy of Space Technology, Beijing 100094, China
Abstract:
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.
Keywords:sealed cabin  in-orbit maintenance  space manipulating terminal  numerical simulation  dynamic meshes
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