摩擦驱动型压电叠堆直线电机的工作机理  

Working Mechanism of Friction-Drive-Type Linear Motor with Piezoelectric Stacks

作　　者：陈西府[1,2] 徐晶晶[1] 王寅[1] 黄卫清[1] 

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,南京210016 [2]盐城工学院机械工程学院,盐城224051

出　　处：《振动．测试与诊断》2011年第6期742-746,813,共5页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金重点资助项目(编号:50735002);高等学校科技创新资助项目(编号:708050)

摘　　要：以一种典型的摩擦驱动型压电叠堆直线电机结构为例,对摩擦驱动型压电叠堆直线电机的振动摩擦驱动机理进行研究。结合电机系统的振动脱离模型,分析了电机定子与动子脱离的力学条件,进而分析电机结构参数和工作参数对椭圆运动和振动脱离性能的影响。对原理样机进行了试验研究,结果表明,压电叠堆的激励电压、激励频率和电机的预压力对电机的振动脱离性能有显著影响。Taking a typical structure of a friction-drive-type Linear motor with piezoelectric stacks for example,the drive principle of vibration friction is investigated.Based on the vibration detachment model of the motor system,the mechanics conditions of detachment between stator and slider are analyzed.Further,the influence of the construction parameters and operation parameters are analyzed on elliptical motion and vibration detachment.The prototype is investigated by experiments.It is shown that the exciting voltage and exciting frequency of piezoelectric stacks and the pre-pressure of motor have significant effects on vibration detachment.

关 键 词：直线电机 压电叠堆 摩擦驱动 振动脱离 设计理论 

分 类 号：TM356[电气工程—电机] TM359.4