Analysis of parametric elastic vibration of induction motor stator
XIA Ying1, WANG Shiyu1,2, SUN Wenjia1
1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;
2. Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control, Tianjin 300072, China
Abstract:This work aims at the parametric vibration of the elastic stator of induction motor excited by rotating magnetic load. A mechanical-electromagnetic coupling model is established by using energy method. The ordinary differential equation is obtained by using Galerkin method. Multi-scale method is employed to reveal the relationship between the important basic parameters and stability and also provide the analytical unstable boundary. The results imply that the boundaries are dependent on the mechanical-electromagnetic parameters, including the support stiffness, bending flexibility, phase current and tooth pitch. Floquét and Runge-Kutta methods are used to obtain the instability regions and the response, respectively. The numerical results verify the conclusions from the analytical method. The results lay a theoretical reference for the parameter’s selection.
夏 营1,王世宇1,2,孙文嘉1. 感应电机定子参激弹性振动分析[J]. 振动与冲击, 2017, 36(14): 189-193.
XIA Ying1, WANG Shiyu1,2, SUN Wenjia1. Analysis of parametric elastic vibration of induction motor stator. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(14): 189-193.
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