基于能量最小准则确定驱动器位置及仿真  

The optimal placement of piezoelectric actuator and simulated basing on the criterion of minimizing the control energy determinate

作　　者：曹丽雅[1] 高瑞贞[1] 袁伟泽[1] 张京军[1] 

机构地区：[1]河北工程大学土木学院,河北邯郸056038

出　　处：《河北工程大学学报（自然科学版）》2008年第1期21-24,共4页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：河北省自然科学基金项目资助(E2008000731);河北省教育厅科学研究计划项目(2006107)

摘　　要：在研究智能结构振动主动控制驱动器的位置优化问题中,首先推导了压电传感方程和压电致动方程,然后根据控制信号能量的表达式,以控制能量最小为目标函数,压电驱动器的位置坐标为变量,对压电驱动器的位置进行优化。最后结合智能简支梁实例应用matlab软件计算出其粘贴压电驱动器的最优位置,并通过编写APDL(ansys parameter design language)程序对粘贴有压电材料的智能简支梁结构进行瞬态动力学分析,实现对智能梁的振动控制仿真。仿真结果表明,此种方法能有效地抑制智能梁的振动。The equation of piezoelectric sensor and piezoelectric actuator were derived in the process of investigating the optimal placement of piezoelectric actuator for active vibration control of the intelligent structure firstly, then the smallest energy as the objective function and the position coordinate of the piezoelectric actuator were taken as the variabl according to the energy criterion, the locations of the piezoelectric actuators were optimized. Finally, the optimal placements of the piezoelectric actuators were calculated by matlab. The vibration con parameter design proach had more language effective trol of structure had become true through compiling the program of APDL （ansys ） and using transient dynamic analysis. The simulation investigated that this apin suppressing the vibration of the intelligent beam in this paper.

关 键 词：智能结构 位置优化 能量准则 APDL程序 

分 类 号：TH113.1[机械工程—机械设计及理论]