离网型风力发电机塔架振动问题的模态分析  

Stimulation and analysis on the tower vibration of an off-grid wind turbine model

作　　者：郭威[1] 徐玉秀[1] 

机构地区：[1]天津工业大学机械电子学院,天津300160

出　　处：《可再生能源》2006年第5期65-67,共3页Renewable Energy Resources

基　　金：辽宁省科委资助项目(2003512022-2)

摘　　要：对离网型风力发电机模型的塔架振动进行了分析,运用瑞雷法计算其基频,以有限元模态分析和试验测量的方法计算分析出塔架的固有频率和振型。根据分析结果讨论有限元建模的合理性,分析引起振动的原因,并依此提出塔架较合理的锥形管结构改进方案。The vibration problem of an off-grid wind turbine model is analyzed in this paper. By calculating the basic frequency in Rayleigh methods, mode analysis with finite element method, and test measurement, the inherent frequency and deformed shape are calculated. According to the results,the rationality of modeling is discussed and main reasons which arouse vibration are analyzed. For obtaining a well-designed structure, an improvement plan is put forward.

关 键 词：风力发电机 动态特性 模态分析 有限元分析 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]