Change of Mechanical Natural Frequencies of Induction Motor

被引:30
作者
Ishibashi, Fuminori [1 ]
Matsushita, Makoto [2 ]
Noda, Shinichi [3 ]
Tonoki, Kenzo [4 ]
机构
[1] Shibaura Inst Technol, Ctr Educ Assistance, Tokyo 1358548, Japan
[2] Toshiba Co Ltd, Transportat Syst Dept, Fuchu, Tokyo 1838511, Japan
[3] Toshiba Co Ltd, Elect & Mech Applicat Syst R&D Dept, Fuchu, Tokyo 1838511, Japan
[4] Toshiba Co Ltd, Power & Ind Syst R&D Ctr, Fuchu, Tokyo 1838511, Japan
关键词
End winding; frame; induction motor; mechanical natural frequency; structural finite-element method (FEM); VIBRATION BEHAVIOR;
D O I
10.1109/TIA.2010.2046279
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Most electromagnetic acoustic noise of induction motors is generated when the mechanical natural frequencies of the stator coincide with or are close to the frequencies of magnetomotive forces. In order to avoid this, it is necessary to determine the motor's mechanical natural frequencies by calculation or simulation. Variation of natural frequency from yoke steel ring to motor has been studied experimentally, analytically and by structural finite-element method analysis. It thus became clear that mechanical natural frequencies increased in number and natural frequencies gradually decreased from simple yoke steel ring to motor.
引用
收藏
页码:922 / 927
页数:6
相关论文
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