ANALYSIS AND OPTIMIZATION OF A PIEZOELECTRIC ACTUATOR COMBINED THE LONGITUDINAL VIBRATION TRANSDUCER WITH THE TRAVELLING WAVE RING

摘要：

In this paper,a piezoelectric actuator combined the longitudinal vibration transducer with the travelling wave ring has been proposed.After analysis of the transducer working mode frequency and amplitude under different pre-tightening force,the relationship of the pre-tightening force to transducer vibration characteristics was found.According to the three characteristics of work mode shape,the work modes of piezoelectric actuator were identified from the modes acquired by ADPL programming,and the structural parameter optimization design of the actuator was studied under ANSYS environment.Finally,a prototype was fabricated on the basis of the optimization design scheme in which the size parameters (P1,P2,P3,P5) were 3.15 mm,2.2 mm,0.57 mm,34.9 mm respectively,and the bolt pre-tightening force was 7Nm.The experimental result of the prototype was consistent with the simulation analysis.

关键词： Pre-tightening force Vibration characteristics Modal identification Optimization design

作者: Long-cheng LI Sheng-qiang ZHOU

作者单位: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 250016, China;National Joint Engineering Laboratory of ultrasonic motor, Nanjing, 250016, China

会议类型: 国际会议

会议名称: The 2016 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2016全国压电和声波理论及器件技术研讨会)

会议地点: 西安

会议语种:英文

页码: 354-358

在线出版日期: 2016-10-21（万方平台首次上网日期，不代表论文的发表时间）