智能结构中致动器位置和尺寸的优化研究  

Study on the piezoelectric actuator's optimal location and size of smart structure and simulated

作　　者：袁伟泽[1] 高瑞贞[1] 曹丽雅[1] 张京军[1] 

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038

出　　处：《河北工程大学学报（自然科学版）》2008年第3期38-41,45,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：河北省自然科学基金项目(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致动器的位置和尺寸优化问题中,首先推导了多压电片传感方程、致动方程和结构的动能、势能表达式,并结合模态的可控性、可观性以及模态价值构建致动器位置尺寸优化准则;然后结合智能简支梁实例计算出其粘贴压电致动器的最优位置和尺寸,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。In this paper, we discuss the problem of obtaining the piezoelectric actuator＇s optimal location and size on the smart structure. At first, the expressions of multi piezoelectric sensor and actuator equation and the expression of kinetic and potential energy were expressed, then construct the optimal rule of piezoelectric actuator＇s location and size according to the modal controllability and observability and the modal cost. Finally, we use a simply - supported beam to calculate the optimal location and size and establish finite element model of the beam with piezoelectric materials by ANSYS software. The vibration control of structure has become true through compiling the APDL（ansys parameter design language） program and using transient dynamic analysis.

关 键 词：智能结构 模态价值 优化准则 APDL程序 

分 类 号：TH113.1[机械工程—机械设计及理论]