| 磁力矩器强度计算分析及尺寸优化设计 |
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| 引用本文： | 曾萤雪,闫晓军.磁力矩器强度计算分析及尺寸优化设计[J].航天器环境工程,2009,26(4):335-338. |
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| 作者姓名： | 曾萤雪 闫晓军 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100191 |
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| 摘 要： | 磁力矩器是卫星的重要执行机构.为了保障其使用的可靠性,文章运用有限元分析的方法,计算磁力矩器的力学特性,同时采用材料力学和有限元计算的方法,对其进行优化设计,降低最大应力.计算结果表明:不均匀的温度场导致较大热应力.磁力矩器的危险部位主要集中在支架底座与螺栓接触面处,通过尺寸优化设计可以减小此处的应力.
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| 关 键 词： | 磁力矩器 可靠性 有限元分析 优化设计 |
| 收稿时间： | 4/1/2009 12:00:00 AM |
| 修稿时间： | 2009/4/20 0:00:00 |
The calculation of magnetic torque strength and the dimension optimization design |
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| Zeng Yingxue and Yan Xiaojun.The calculation of magnetic torque strength and the dimension optimization design[J].Spacecraft Environment Engineering,2009,26(4):335-338. |
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| Authors: | Zeng Yingxue and Yan Xiaojun |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics |
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| Abstract: | The magnetic torque is the main execution part of a satellite. This paper presents a design of the magnetic torque based on its strength and reliability, which is optimized in dimension by the method of materials mechanics and the finite element calculation to reduce the maximum stress. The results show that the thermal stress is caused by its non-uniform temperature field. The main dangerous positions of the magnetic torque are in the contact interface between the bolt and the support base and the optimization reduces the stress in the critical point. |
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| Keywords: | magnetic torque reliability finite element analysis optimization design |
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