不平衡磁拉力作用下偏心转子的非线性振动

J4 ›› 2011, Vol. 49 ›› Issue (03): 459-461.

不平衡磁拉力作用下偏心转子的非线性振动

李志和¹, 李正光², 孙维鹏²

1. 水力发电设备国家重点实验室, 哈尔滨 150040； 2. 吉林大学数学学院, 长春 130012

收稿日期:2011-03-04 出版日期:2011-05-26 发布日期:2011-06-15
通讯作者: 孙维鹏 E-mail:sunwp@jlu.edu.cn

Nonlinear Vibration of an Eccentric Rotor Subjected to Unbalanced Magnetic Pull

LI Zhihe¹, LI Zhengguang², SUN Weipeng²

1. State Key Laboratory of Hydropower Equipment, Harbin 150040, China；2. College of Mathematics, Jilin University, Changchun 130012, China

Received:2011-03-04 Online:2011-05-26 Published:2011-06-15
Contact: SUN Weipeng E-mail:sunwp@jlu.edu.cn

摘要/Abstract

摘要：

用数值方法研究不平衡磁拉力、偏心力、陀螺力及极对数对发电机空载运行时转子振动的影响. 结果表明, 不平衡磁拉力可引起大幅度圆形涡动.

关键词: 电机转子；不平衡磁拉力；陀螺效应；非线性振动

Abstract:

The effects of unbalanced magnetic pull (UMP), mass eccentricity, gyroscopic forces and polepair number on the vibrations of an eccentric rotor in threephase generator under noload were investigated by means of the numerical method. It is concluded that UMP can cause large amplitude circular whirling.

Key words: rotor, unbalanced magnetic pull, gyroscopic force, nonlinear vibration

中图分类号:

O347.6

李志和, 李正光, 孙维鹏. 不平衡磁拉力作用下偏心转子的非线性振动[J]. J4, 2011, 49(03): 459-461.

LI Zhi-He, LI Zheng-Guang, SUN Wei-Feng. Nonlinear Vibration of an Eccentric Rotor Subjected to Unbalanced Magnetic Pull[J]. J4, 2011, 49(03): 459-461.