摘要
宏纤维复合材料(MFC)对板壳结构具有很好的治振效果,为了得到更为精确的MFC力电关系及提高MFC的振动控制效果,提出了一种新的MFC复合平板结构作动方程计算方法.在MFC的第1类压电方程基础上,建立了考虑泊松比与MFC薄膜应变对MFC作动力与作动弯矩影响的P1型MFC复合平板结构作动方程,得到了MFC对结构的作动力与作动弯矩.模型计算结果与公认数据进行比较,偏差在5%以内;完成了MFC复合平板结构的振动控制试验,控制前后的加速度仿真结果与试验结果之间的偏差在7.5%以内,表明本文推导的P1型MFC作动方程是适用的,可以用于MFC对平板结构的减振控制仿真计算.
Macro-fiber composite(MFC) has a good vibration control effect on the plate and shell structures. In order to obtain a more accurate electromechanical coupling relationship of MFC and improve the vibration control effect of MFC, this paper presents a new calculation method of MFC coupled-plate structure actuating equation. On the basis of the first kind of piezoelectric basic equations, considering the effect of the poisson’s ratio and the MFC plane strain on MFC’s actuating force and actuating moment, a P1-type MFC coupled-plate structure actuating equation is established. And then the actuating force and actuating bending moment of MFC for the structure are obtained. The results of model calculation are compared with the official data;the deviation is less than 5%. The vibration control experiment of MFC coupled-plate structure is completed. Before and after the control, the deviation between the acceleration simulation results and the acceleration test results is less than 7.5%, so as to indicate that the P1-type MFC actuating equation is suitable. The P1-type MFC actuating equation can be used in the simulation calculation of vibration control for the MFC coupled-plate structure.
作者
涂建维
张家瑞
罗威
朱晨飞
赖方鹏
TU Jianwei;ZHANG Jiarui;LUO Wei;ZHU Chenfei;LAI Fangpeng(Hubei Key Laboratory of Roadway, Bridge and Structure Engineering,Wuhan University of Technology,Wuhan 430070, China)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2019年第4期324-330,共7页
Engineering Journal of Wuhan University
基金
国家自然科学基金面上项目(编号:51478372)
湖北省创新群体项目(编号:2016CFA020)
中央高校基本科研业务费专项资金资助项目(编号:2017-zy-055)
关键词
宏纤维复合材料
作动方程
仿真
振动控制
macro-fiber composite
actuating equation
simulation
vibration control
