采用SMA驱动的小型空间磁悬浮飞轮锁紧机构

闫晓军; 张小勇; 聂景旭; 张绍卫

采用SMA驱动的小型空间磁悬浮飞轮锁紧机构

1.
北京航空航天大学能源与动力工程学院, 北京 100191
2. 北京控制工程研究所, 北京 100094

基金项目: 全国优秀博士学位论文作者专项资助项目(200351); 新世纪优秀人才支持计划(NCET-06-0178)

详细信息

作者简介:
闫晓军(1973-),男,教授,yanxiaojun@buaa.edu.cn.

中图分类号: V 47
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出版历程
- 收稿日期: 2009-12-17
- 网络出版日期: 2011-02-28

Prototype SMA actuated locking device for small space magnetic bearing flywheels

1.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. Beijing Institute of Control Engineering, Beijing 100190, China

摘要

摘要: 磁悬浮飞轮锁紧机构在卫星发射时锁紧飞轮,减小其振动和冲击载荷;在发射后解锁,保证飞轮正常工作.目前已有的以火工品或步进电机驱动的锁紧机构具有冲击大、体积较大、不可重复使用等缺点.提出了一种采用形状记忆合金(SMA, Shape Memory Alloy)驱动的空间磁悬浮飞轮锁紧机构的设计方案,并在Liang本构模型的基础上发展了机构驱动单元的设计方法.之后,完成了锁紧机构的样机研制和调试,并开展了地面的性能测试、振动试验和高温环境试验.研究结果表明:SMA锁紧机构安装体积小,在星载28 V电压下能在6 s内完全锁紧,在1 s内完全解锁,并能够通过振动和环境实验.SMA驱动的磁悬浮飞轮锁紧机构具有锁紧力大、同步性好、可重复使用、低冲击、无污染等优势,有很大的工程应用潜力.
- 形状记忆合金 /
- 磁悬浮飞轮 /
- 空间锁紧机构 /
- 本构模型 /
- 设计方法
Abstract: Based on magnetic levitation principle, the magnetic bearing flywheel is a new type of inertial actuator used in satellite attitude control. A locking device was used to eliminate the gap between the rotor and stator of magnetic bearing flywheel so as to protect it from shock and vibration damage during launch phase. The present pyrotechnical or motor actuated locking devices have the disadvantages of high shock, large size and un-resetable. A prototype shape memory alloys (SMA)actuated locking device for small space magnetic bearing flywheel was developed in this investigation. A method and procedures to design the actuator element based on Liang-s constitutive model was presented. Then the SMA locking device was assembled and the function, environment and vibration tests were carried out. Test results show that the device can complete lock function within 6 s and release function within 1 s under satellite power supply of 28 V. It can also undergo the environment and vibration tests which simulate the launch phase. It is concluded that the new SMA locking device owning advantages of great locking force, small size, low shock and easy to reset has a potential use in space engineering.
- shape memory alloy /
- magnetic bearing flywheel /
- space locking device /
- constitutive model /
- design method

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[1] 吴刚,刘昆,张育林.磁悬浮飞轮技术及其应用研究[J].宇航学报,2005,26(3):385-390 Wu Gang,Liu Kun,Zhang Yulin.Application and study of magnetic bearing flywheel technology[J].Journal of Astronautics,2005,26(3):385-390 (in Chinese) [2] 周洁.用于卫星飞轮的磁悬浮驱动技术研究与展望[J].微电机,2003,36(2):43-46 Zhou Jie.Survey on the research and development of bearingless driver used as flywheel in satellite system[J].Micro Mortor,2003,36(2):43-46 (in Chinese) [3] Privat M,Costa A D.Pneumatic locking device for magnetic bearing reaction wheel //Harris R A.Proceedings of the 10th European Space Mechanisms and Tribology Symposium.San Sebastián,Spain:ESA Publications Division,2003:121-128 [4] 刘晓东,余立辉.磁悬浮飞轮自动锁紧系统的研制[J].机械与电子,2007,1(3):33-36 Liu Xiaodong,Yu Lihui.Development of automatic locking system for magnetic bearing flywheel[J].Machinery and Electronics,2007,1(3):33-36 (in Chinese) [5] Razov A,Cherniavsky A.Application of SMAs in modern spacecraft and devices[J].EDP Sciences,2003,112:1173-1176 [6] 杜彦良.自动探测裂纹和主动控制裂纹扩展的智能材料结构研究 .北京:北京航空航天大学能源与动力工程学院,1993 Du Yanliang.A Research on intelligent material structures for active detecting and control the growth of cracks .Beijing:School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,1993(in Chinese) [7] Liang C,Roger C A.A one-dimensional thermomechanical constitutive relation of shape memory materials[J].Journal of Intelligent Material Systems and Structures,1990,1(2):207-234 [8] 成大先.机械设计手册[M].北京:化学工业出版社,2004:325-350 Cheng Daxian .Mechanical design manual[M].Beijing:Chemistry Industry Press,2004:325-350 (in Chinese)

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