热压电仿生热鲁棒结构的致动器最优配置  

Optimal Actuator Placement for Piezothermoelectric Biotic Thermal Robust Structure

作　　者：杜设亮[1] 张伟根 傅建中[1] 陈子辰[1] 

机构地区：[1]浙江大学机械系生产工程研究所 [2]浙江大学分析测试中心

出　　处：《中国机械工程》2001年第z1期163-165,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 ( 5 980 5 0 18)

摘　　要：研究热压电仿生热鲁棒结构中的致动器放置优化问题。为找到热压电致动器的最优放置 ,提出了热压电介质的主导方程 ,讨论了各耦合因素对仿生热鲁棒结构控制的影响及致动器的工作机理。提出目标函数来评价系统可控性以优化致动器的放置 ,并讨论了致动器放置与系统可控性间的关系。基于致动器优化放置的分析结果 ,确定仿生热鲁棒结构中致动器优化放置的准则。因而 ,仿生热鲁棒结构的最佳致动器配置能从可能的致动器配置中得到 ,使系统具有最佳的热鲁棒性和控制效率。The actuator placement optimization of piezothermoelastic biotic thermal robust structure is studied in this paper. In order to find the optimal placement of piezoelectric actuators, the governing equations for piezothermoelasticity continuum are presented first and the effects of coupling factors on the control of biotic thermal robust structure and the work mechanism of actuator are discussed later. On the basis of those analyses, objective functions are presented to evaluate the system controllability and so actuator placement optimization studies can be conducted. And the relations between actuator placement and system controllability are illustrated by numerical examples. Based on the results of the optimal analysis procedure of actuator placement, some criteria of actuator placement are obtained. Thus, the best actuator placement of piezothermoelectric biotic thermal robust structure can be gotten from the actuator placements available so that the system has the best robustness and control efficiency.

关 键 词：仿生热鲁棒结构 热压电耦合效应 可控性 致动器配置优化 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]