可再生能源2012，Vol.30Issue(5)：38-41,4.
考虑应力刚化影响的风力机叶片振动模态分析
The simulation analysis of the vibration modal on a wind turbine blade under the stress stiffening effect
摘要
Abstract
In this paper,the finite element model of a 500 W wind turbine blade was built by using the ANSYS structural dynamic analysis software. On basis of the basic theory of vibration analysis,the stress stiffening influence on the natural frequency of blades was analyzed and the change law of vibration model under the different rotation speed was studied. By comparing the simulation results under different rotation speed, it was found that the faster the blade run, the greater the stress stiffening affect natural frequency,especially the Iow order natural frequency. So the stress stiffening effect should be considered for the analysis and calculation of dynamics. The results of the paper have some reference value to the dynamic design and control of the wind turbine blades.关键词
风力机叶片/模态分析/应力刚化/固有频率Key words
wind turbine blade/ model analysis/ stress stiffening effect/ natural frequency分类
能源科技引用本文复制引用
孙保苍,李鹏飞..考虑应力刚化影响的风力机叶片振动模态分析[J].可再生能源,2012,30(5):38-41,4.基金项目
国防基础科研基金资助项目(A2520060236). （A2520060236）
