压电板壳风力机叶片动力学建模与分析  

DYNAMICAL MODELING AND ANALYSIS OF WIND TURBINE BLADE WITH PIEZOELECTRIC PLATE SHELL

作　　者：乔印虎[1] 韩江[2] 张春燕[1] 陈杰平[1] 缑瑞宾[1] 

机构地区：[1]安徽科技学院机械工程学院,凤阳233100 [2]合肥工业大学机械与汽车工程学院,合肥230009

出　　处：《太阳能学报》2016年第6期1560-1565,共6页Acta Energiae Solaris Sinica

基　　金：安徽省优秀青年基金重点项目(2013SQRL062ZD);安徽科技学院重点建设学科(AKZDXK2015C03);安徽科技学院稳定人才基金项目

摘　　要：针对由压电智能结构构成的风电叶片振动逆控制技术进行理论分析和研究。首先设计压电复合材料叶片,将风力机叶片等效为扁壳结构,基于压电层合壳理论,推导压电扁壳的振动控制微分方程。在此基础上,把压电板壳风力机叶片简化成弹性压电层合壳,建立叶片智能结构机-电耦合系统动力学模型和压电复合材料压电扁壳结构的动力学方程,进行有限元分析,结果表明在风载作用下,控制电压对叶片振动有抑制作用。The theoretical analysis and research of vibration control technology for wind turbine blades made of piezoelectric intelligent structure were carried out. Firstly, the blade with piezoelectric composite material was designed, then, the blades＇ structure was approximate equivalent to flat shell structure based on the piezoelectric laminated shell theory, and the differential equation of piezoelectric shallow shells for vibration control was derived. On this basis, the wind turbine blade made of piezoelectric plate shell was simplified as elastic piezoelectric laminated shell, the dynamics model of mechanical-electric coupling system of blade intelligent structure and the dynamic equation of composite piezoelectric flat shell structure were established. The finite element analysis results show that the vibration of blade under wind load can be restrained with control voltage.

关 键 词：风力机叶片 智能结构 层合扁壳 动力学建模 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]