小型异步电机模态计算与试验分析

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Abstract Taking a small asynchronous motor of 1.1kW as prototype, modal tests were done using hammering method. The stators with no windings, with unvarnished windings, with varnished windings and with windings which were cut off the ends, as well the whole motors were as the test objects. Meanwhile it is ensured that the stators of all the test models are identical. The second order radial natural frequency of the stator was recognized through the magnitude and phase of the acceleration frequency response functions derived from the tests. Base on the test results, the difference between the natural frequencies of stator with varnished and unvarnished windings was analyzed; as well the influence that the end windings made on the natural frequency of stator was discussed. The natural frequencies of the stators without windings and with windings which were cut down the ends were calculated respectively by numerical method. At the same time, 3D whole domain finite element method(FEM) calculation model of the prototype was established, and a constraint was imposed on the connection of rotor and bearing, so full consideration was made into the influence that rotor made on the modal of the motor. The calculated and test results were compared. Finally, the effects that the rotor, the end caps and the motor shell made on the modal of the stator were discussed.

Key words： Small asynchronous motor hammering modal test magnitude and phase radial natural frequency finite element method

Received: 01 March 2014 Published: 14 September 2015

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TM343

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[1] Cai Wei, Pragasen Pillay, Tang Zhangjun. Impact of stator windings and end-bells on resonant frequencies and modal shapes of switched reluctance motors[J]. IEEE Transactions on Industry Applications, 2002, 38(4): 1027-1034.
[2] Long S A, Zhu Z Q, Howe D. Vibration behaviour of stators of switched reluctance motors[J]. IEE Proceedings of Electric Power Applications, 2001, 148(3): 257-264.
[3] 孙剑波, 詹琼华, 黄进. 开关磁阻电机的定子模态分析[J]. 中国电机工程学报, 2005, 25(22): 148-152. Sun Jianbo, Zhan Qionghua, Huang Jin. Modal anslysis of stator vibration for switched reluctance motors[J]. Proceedings of the CSEE, 2005, 25(22): 148-152.
[4] 吴建华. 基于物理模型开关磁阻电机定子模态和固有频率的研究[J]. 中国电机工程学报, 2004, 24(8): 109-114. Wu Jianhua. Study on the stator mode shapes and natural frequencies of switched reluctance motor based on real structural model[J]. Proceedings of the CSEE, 2004, 24(8): 109-114.
[5] 莫岳平, 胡敏强, 金龙, 等. 振动模态与超声波电机性能关系的研究[J]. 电工技术学报, 2002, 17(3): 7-11. Mo Yueping, Hu Minqiang, Jin Long, et al. Research on the relation between vibration mode and ultrasonic motor’s performance[J]. Transactions of China Elec- trotechnical Society, 2002, 17(3): 7-11.
[6] 代颖, 崔淑梅, 宋立伟. 车用电机的有限元模态分析[J]. 中国电机工程学报, 2011, 31(9): 100-104. Dai Ying, Cui Shumei, Song Liwei. Finite element method modal anslysis of driving motor for electric vehicle[J]. Proceedings of the CSEE, 2011, 31(9): 100-104.
[7] Fuminori Ishibashi, Makoto Matsushita, Shinichi Noda, et al. Change of mechanical natural frequencies of induction motor[J]. IEEE Transactions on Industry Applications, 2010, 46(3): 922-927.
[8] 杨浩东, 陈阳生, 邓志奇. 永磁同步电机常用齿槽配合的电磁振动[J]. 电工技术学报, 2011, 26(9): 24-30. Yang Haodong, Chen Yangsheng, Deng Zhiqi. Elec- tromagnetic vibration of PM synchronous motors with different combinations of slot and pole number[J]. Transactions of China Electrotechnical Society, 2011, 26(9): 24-30.
[9] lshibashi F, Kamimoto K, Hayashi T. Natural frequency of stator core of small induction motor[J]. IEE Proceedings of Electric Power Applications, 2003, 150(2): 210-214.
[10] Neves C G C, Carlson R, Sadowski N, et al. Experimental and numerical analysis of induction motor vibrations[J]. IEEE Transactions on Magnetics, 1999, 35(3): 1314-1317.
[11] 王天煜, 王凤翔, 白浩然, 等. 大型异步电机结构振动特性的研究[J]. 机械强度, 2009, 31(1): 140-143. Wang Tianyu, Wang Fengxiang, Bai Haoran, et al. Study on vibration behavior of large induction motors [J]. Journal of Mechanical Strength, 2009, 31(1): 140-143.
[12] 韩伟, 贾启芬, 邱家俊. 异步电机定子的振动与模态分析[J]. 振动与冲击, 2012, 31(17): 91-95. Han Wei, Jia Qifen, Qiu Jiajun. Vibration and modal analysis for stator of an induction motor[J]. Journal of Vibration and Shock, 2012, 31(17): 91-95.
[13] 傅志方, 华宏星. 模态分析理论与应用[M]. 上海: 上海交通大学出版社, 2000.
[14] Tang Zhangjun, Pragasen Pillay, Avoki M Omekanda, et al. Young’s modulus for laminated machine structures with particular reference to switched reluctance motor vibrations[J]. IEEE Transactions on Industry Applica- tions, 2004, 40(3): 748-754.