Volume 37 Issue 2
Feb.  2011
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Yan Xiaojun, Zhang Xiaoyong, Nie Jingxu, et al. Prototype SMA actuated locking device for small space magnetic bearing flywheels[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(2): 127-131. (in Chinese)
Citation: Yan Xiaojun, Zhang Xiaoyong, Nie Jingxu, et al. Prototype SMA actuated locking device for small space magnetic bearing flywheels[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(2): 127-131. (in Chinese)

Prototype SMA actuated locking device for small space magnetic bearing flywheels

  • Received Date: 17 Dec 2009
  • Publish Date: 28 Feb 2011
  • 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.

     

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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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