智能夹层风力机叶片振动主动控制研究

ACTIVE VIBRATION CONTROL OF WIND TURBINE BLADE WITH INTELLIGENT SANDWICH STRUCTURE

总结了国内外压电材料应用于弹性体的情况;对智能夹层风力机叶片进行建模,将压电材料丝埋入风力机叶片的基体中,用有限元分析软件Algor分析埋入的压电材料逆压电效应下的应力、位移,实现叶片振动主动控制,以防止叶片这一弹性体发生颤振。为实现叶片智能振动控制打下基础。

The researching headways of piezoelectric materials for solving the aeroelasticity stability problem at home and abroad were briefly summarized. Secondly, The theoretic model of adaptive wind turbine blade with intelligent sandwich structure was set up and the wires of piezoelectric material were embedded into substrate of wind turbine blades. In order to perform achieve active vibration control of blades, to prevent the elastic body of blades occurrence of flutter, the finite element software of Algor was used to analysis the inverse piezoelectric effect of embedded piezoelectric materials, such stress, displacement. In order to achieve active vibration control of blades.