径向极化压电陶瓷管建模与仿真  

Modeling and simulation of radial polarized piezo tube

作　　者：杨明明[1,2] 汪焰恩[1] 魏生民[1,2] 柴卫红[1] 魏庆华[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072 [2]西北工业大学现代设计与集成制造教育部重点实验室,陕西西安710072

出　　处：《电子元件与材料》2018年第1期23-27,44,共6页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(51175432);教育部高校博士点专项科研基金资助项目(20116102110046);中央高校基础研究基金资助项目(3102014JCS05007);陕西省工业科技攻关项目(2015GY047);西北工业大学博士论文创新基金资助(201213)

摘　　要：基于平面应变假设,推导了径向极化压电陶瓷管在外电场作用下形变的计算公式。作为挤压式喷嘴的执行器,径向极化压电陶瓷管在与极化方向一致的外电场的作用下主要发生径向变形。利用有限元分析软件ANSYS14.0,对模型进行有限元仿真。利用这两种方法计算不同结构尺寸的压电陶瓷管在100 V电压作用下的内壁径向位移,两种方法计算结果之差小于5%,结果的一致性,验证了理论公式的正确性。该理论分析模型可预测挤压式压电喷嘴在外电场作用下的响应,指导喷嘴结构设计,降低喷嘴设计成本,提高喷嘴结构设计可靠性和设计效率。Based on plane strain hypothesis, radial displacement formula of polarized piezo ceramic cylinder excitedby radial electric field was derived. Radial polarized piezo ceramic cylinder, which is actuator of squeeze-modepiezoelectric inkjet printhead, perform mainly radial deformation under radial external electric field. Finite element （FE）simulation was also carried out using the software of ANSYS 14.0. Inner surface radial displacements of different piezotubes were analyzed using the two methods at 100 V. The difference between results of the analytic formula and FEsimulation is less than 5%. Consistent results of two different methods verify qualification of the derived formula. Theanalytic model could be used to predict the response of squeeze-mode inkjet printer under external electric field, reducedesign costs and improve design reliability and efficiency.

关 键 词：压电陶瓷管 理论分析 径向位移 有限元分析 挤压式 压电喷嘴 

分 类 号：TM28[一般工业技术—材料科学与工程]