具有机电耦合的自适应超静定桁架应力最优控制(英文)  

Stress Optimum Control of Adaptive Statically Indeterminate Truss with Mech-electric Coupling

作　　者：隋允康[1] 邵建义[2] 叶宝瑞[3] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100022 [2]大连理工大学工程力学系,辽宁大连116023 [3]北京工业大学应用数理学院,北京100022

出　　处：《北京工业大学学报》2002年第1期1-7,共7页Journal of Beijing University of Technology

基　　金：the National Natural Science Fondation of China (10072005); Project supported by Beijing Education Commission(3003002).

摘　　要：以压电堆型作动器联人桁架形成自适应结构，用Ｈａｍｉｌｔｏｎ原理导出机电耦合方程．求出了应力对电压 的敏度，以输入电压作为控制量，构造了静强度控制的规划法模型．算例验证了该方法的正确性和有效性．Combined with the piezoelectric stack actuator, statically indeterminate truss becomes adaptive structure. The piezo-electric FEM equation of mech-electric coupling is deduced by using Hamilton's principl, on the basis of which the sensitivities of stresses to voltage are acquired. Regaiding the input voltage as control variables, the programming model of static strength control is constructed. The correctness and efficiency of the method are illustrated by several examples.

关 键 词：自适应结构 强度控制 机电耦合 敏度分析 规划法 超静定桁架 应力 最优控制 

分 类 号：TU323.4[建筑科学—结构工程] O232[理学—运筹学与控制论]