Design and testing for shape control of piezoelectric structures using topology optimization

被引：33
作者：
Luo, Quantian [1 ]
Tong, Liyong [1 ]
机构：
[1] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia
来源：
ENGINEERING STRUCTURES | 2015年 / 97卷
基金：
澳大利亚研究理事会;
关键词：
Shape control; Optimization; Mutual strain energy; Moving iso-surface threshold; LEVEL-SET METHOD; ACTUATORS; PLATES;
D O I：
10.1016/j.engstruct.2015.04.006
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents a numerical and experimental investigation into optimum topological design of morphing piezoelectric structures using a moving iso-surface threshold method. Proposed first is a novel formulation of the response function suitable for minimizing the error norm between desired and achieved shapes in the form of combined mutual strain energy densities. A design updating algorithm with an enhanced efficiency is then developed in searching for the optimum iso-surface threshold during iterations. Numerical results are presented for optimum topological material distribution for shape morphing of piezoelectric plates subjected to mechanical loading, one channel electrical voltage and a combination of both mechanical and electrical loadings. Experiments for selected optimal topological designs are conducted to validate the present response function and updating algorithm as well as the numerical results. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：90 / 104
页数：15
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