首页 | 本学科首页   官方微博 | 高级检索  
     

水轮发电机转子非线性电磁振动的幅频特性
引用本文:徐进友,刘建平,宋轶民,王世宇.水轮发电机转子非线性电磁振动的幅频特性[J].中国机械工程,2010(3).
作者姓名:徐进友  刘建平  宋轶民  王世宇
作者单位:天津大学;
基金项目:国家自然科学基金资助项目(50705062)
摘    要:分析了非线性电磁力和机械不平衡力对水轮发电机转子动态特性的影响。采用解析方法得到了偏心转子的非线性电磁力,建立了动态偏心条件下转子的机电耦联动力学方程。采用复变函数将系统的动力学方程简化,利用谐波平衡法分析了系统的稳态解,得到了系统的幅频响应。结果表明,动态偏心条件下水轮发电机转子的电磁振动呈现非线性特征,幅频曲线在一定条件下将出现跳跃现象,系统呈现明显的软特性。

关 键 词:水轮发电机  电磁力  动态偏心  幅频特性  

Amplitude-frequency Characteristics of Nonlinear Electromagnetic Vibration in a Hydro-generator Rotor
Xu Jinyou Liu Jianping Song Yimin Wang Shiyu Tianjin University,Tianjin.Amplitude-frequency Characteristics of Nonlinear Electromagnetic Vibration in a Hydro-generator Rotor[J].China Mechanical Engineering,2010(3).
Authors:Xu Jinyou Liu Jianping Song Yimin Wang Shiyu Tianjin University  Tianjin
Affiliation:Xu Jinyou Liu Jianping Song Yimin Wang Shiyu Tianjin University,Tianjin,300072
Abstract:The influence of the nonlinear electromagnetic forces and mass eccentric forces on the dynamic characteristics of the hydro-generator rotor was analyzed.The electromechanical coupling vibration model of the system was established,in which the nonlinear electromagnetic force of eccentricity rotor was obtained by using analytical method.This model was simplified to a single degree-of-freedom system by means of complex variable function.The stationary solution of system was solved by harmonic balance method,an...
Keywords:hydro-generator  electromagnetic force  dynamic eccentricity  amplitude-frequency characteristics  
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号