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工程设计学报  2014, Vol. 21 Issue (6): 566-571    DOI: 10.3785/j.issn. 1006-754X.2014.06.011
建模、分析、优化和决策     
皮卫星质量特性测量和配重优化
汤 剑1,谢长雄1,2
1. 衢州学院 机械工程学院, 浙江 衢州 324000; 2. 浙江大学 机械工程学系, 浙江 杭州 310027
Measurement of pico-satellite‘s mass properties and counterweight optimization
TANG jian1, XIE Chang-xiong1,2
1. College of Mechanical Engineering, Quzhou University, Quhou 324000, China;
2. Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要: 卫星质量特性主要包括卫星的质量、质心、转动惯量和惯性积等,是影响卫星精确姿控的一个重要因素.皮卫星能源和姿控能力有限,对皮卫星偏心量和转动惯量提出了相关要求.以“皮星一号A”卫星为例,首先采用三支点称重法和三线摆法测量了卫星的原始偏心量和原始转动惯量,然后采用遗传算法对该卫星配重块个数、尺寸及其安装位置进行配重优化.配重后测量发现:“皮星一号A”卫星偏心量小于0.5 mm,皮卫星转动惯量Jyy>Jxx>Jzz,配重质量约为0.34 kg,在满足姿控系统质量特性要求的前提下实现了配重质量轻量化.皮卫星在轨下传的地球照片说明皮卫星姿控成功.
关键词: 皮卫星质量特性配重优化偏心转动惯量    
Abstract: Mass properties of satellite include mass, centroid, moment of inertia, product of inertia, etc. It is an important security factor for the satellite to achieve attitude control precisely. The pico-satellite has limited ability of energy and attitude control which put forward relevant requirements on its mass properties. Firstly, three pivot weighing method and trifilar torsional pendulum were applied to measure the initial amount of centroidal deviation and the initial moment of inertia. Then, genetic algorithm was employed to optimize the counterweights of the pico-satellite. Through measuring the mass properties of the picosatellite after counterweight, it was found that all relevant conditions were satisfied. The amount of centroidal deviation was less than 0.5 mm, the moment of inertia met requirement of  Jyy>Jxx>Jzz, and the counterweight was about 0.34 kg. On the premise of meeting requirements of mass properties of attitude control system, lightweight design was realized. Finally, the picture of the earth taken by pico-satellite verified the success of attitude control.
Key words: pico-satellite    mass properties    alance weight optimization    centroidal deviation    moment of inertia
收稿日期: 2004-05-13 出版日期: 2014-12-28
基金资助:

中国博士后科学基金资助项目(20080431306);中国博士后科学基金特别资助项目(20081458)

作者简介: 汤剑(1970—),男,浙江江山人,讲师,硕士,从事机械设计与制造及优化研究,E-mail: t70jian@qq.com. 通信联系人:谢长雄(1978—),讲师,博士,从事航天器结构优化设计研究,E-mail:xiechangxiong@zju.edu.cn.
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引用本文:

汤 剑,谢长雄. 皮卫星质量特性测量和配重优化[J]. 工程设计学报, 2014, 21(6): 566-571.

TANG jian, XIE Chang-xiong. Measurement of pico-satellite‘s mass properties and counterweight optimization. Chinese Journal of Engineering Design, 2014, 21(6): 566-571.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn. 1006-754X.2014.06.011        https://www.zjujournals.com/gcsjxb/CN/Y2014/V21/I6/566

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