金属-压电复合管驱动器静态驱动性能分析  

Static Actuation Performance Analysis of Metal and Piezoelectric Composite Tube Actuator

作　　者：孙亚飞[1] 

机构地区：[1]深圳信息职业技术学院机电工程学院,广东深圳518172

出　　处：《压电与声光》2016年第1期64-68,共5页Piezoelectrics & Acoustooptics

基　　金：深圳信息职业技术学院校级基金资助项目(lg201226);国家教育部博士点基金资助项目(20102302120046)

摘　　要：提出了一种新型金属-压电复合管驱动器,以满足微振动主动控制及隔振系统对压电驱动器在位移量、驱动力等性能方面的需求。将管状压电驱动元件粘贴在金属管上,当压电管受外加激励电压作用时,便会在轴向产生伸缩应变,从而使金属管在轴向产生一定的位移量和驱动力。首先对该压电驱动器的静态驱动性能进行理论分析,结果表明,该新型压电驱动器具有中等位移量和驱动力;同时用有限元法对其进行了验证,对于某金属-压电复合管驱动器,通过理论计算和有限元法得到的应变量分别为0.912×10-5、0.925×10-5,从而证明了该理论分析的有效性和正确性;最后设计并制作了一款铜-压电复合管驱动器。This paper presents a new type metal-piezoelectric composite tube actuator to meet the requirements of micro vibration control and vibration isolation system for the shift,driving force and other performance requirements of piezoelectric actuator.The tubular piezoelectric actuators are bonded to a metal tube,when the piezoelectric tube is subjected to the external excitation voltage effect,it will produce the expansion strain in the axial direction,so that the metal tube in the axial direction will produce displacement and driving force.Firstly,the static actuation performance of the metal-piezoelectric actuator is analyzed,the results show that the metal-piezoelectric actuator has moderate displacement and driving force;at the same time,using the finite element method to validate the above result.For a certain metal-piezoelectric composite pipe,the strain obtained by theoretical calculation formula is0.912×10-5,and the strain obtained by the finite element method is 0.925×10-5.It proves the effectiveness and correctness of the theoretical calculation formula;Finally,the design and fabrication of a copper piezoelectric composite actuator is carried out.

关 键 词：压电驱动器 金属管 压电管 

分 类 号：TN86[电子电信—信息与通信工程] TM282[一般工业技术—材料科学与工程]