基于压电双晶片的选针执行器的形变分析  

Analysis of deflection of needle-selecting actuator based on piezoelectric bimorph

作　　者：袁嫣红[1] 齐玲玲[1] 方志斌[1] 

机构地区：[1]浙江理工大学浙江省现代纺织装备技术重点实验室,浙江杭州310018

出　　处：《纺织学报》2007年第5期113-116,共4页Journal of Textile Research

基　　金：国家自然科学基金资助项目(50575210);浙江省自然科学基金资助项目(Y106592)

摘　　要：压电陶瓷提花选针执行器的形变特性是提花执行装置及其控制系统设计的一个关键参数,根据电子提花机基于压电双晶片选针执行器的基本结构,选取表面粘贴压电元件的悬臂梁,利用有限元分析压电问题的流程方法,分析了中间弹性梁和压电层性质对执行器形变的影响,对外加电压、弹性梁的弹性模量和压电片厚度等与选针执行器的性能关系进行了定量分析,为选针执行器结构的选择及应用提供了理论依据和设计方法,并进一步通过实验验证了压电双晶片作为选针执行器的可行性和有效性。The deflection property of piezoelectric ceramics needle-selecting actuator of jacquard is a key parameter in the design of its structure and control system. Based on the basic structure of jacquard＇ s needle selecting actuator with bimorph, the cantilever beam model with bimorph cells sticking on both sides is considered. The actuator deformation is analyzed using finite element method （FEM） regarding the process to solve piezoelectric issue. The influence of the middle elastic beam and the nature of piezoelectric layer on the deflection actuator is studied, and the correlation of the applied voltage, elastic modulus of the beam, and thickness of piezoelectric layer is analyzed quantitatively, thus providing a theoretical basis and design method for the selection and application of needle-selecting actuator. Furthermore, experiment results show that the piezoelectric bimorph used as needle selecting actuator is feasible and effective.

关 键 词：压电双晶片 选针执行器 形变 有限元 提花机构 

分 类 号：TS183.14[轻工技术与工程—纺织材料与纺织品设计]