带粘结层智能结构压电作动器的修正点力模型  

Point Force Model of Smart Structure Piezoelectric Actuator With Paste Layer

作　　者：缪增华[1] 雷跃明[1] 唐凤[2] 

机构地区：[1]重庆大学资源及环境科学学院,重庆400030 [2]重庆大学光电工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2004年第6期85-88,共4页Journal of Chongqing University

摘　　要：在有压电应变作动器的具有振动主动控制功能的智能杆梁结构中,考虑了粘结层的影响,并且假设应变沿各层的厚度方向为线性分布。对Crawley-Luis与Euler-Bernoulli所建立的压电作动器点力模型进行了修正,提出了一种更具一般性的诱导应变作动器的点力模型,分别导出了双面对称粘贴和单面粘贴压电作动器时的修正点力模型的计算公式。并进行了计算机仿真研究,表明了修正模型的合理性。修正点力模型更具一般性,这对设计压电智能结构具有指导意义。In the smart bar-beam structure with piezoelectric strain actuator active control function to vibration, the thickness effect of paste layer is considered and strain is assumed linear distribution along the thickness direction of each layer. The piezoelectric actuator point force model of Crawley and Luis is refined, a more general point force model is established to the smart beam with strain actuator. Point force model calculation formula is educed to smart beam with two-side symmetry paste actuator or one-side paste actuator. The computer simulation is done and the result reveals modified point model is right. The modified model is more common, as is important to design piezoelectric smart structure.

关 键 词：压电应变作动器 智能梁 点力模型 

分 类 号：O343[理学—固体力学]