一种新型面内模态直线超声电机的驱动机理及试验研究
Research on the Driving Mechanism and Experiment a Novel Linear Ultrasonic Motor Based on In-Plane Modes
DOI: 10.12677/OJAV.2014.24004, PDF, HTML, XML, 下载: 2,203  浏览: 8,134  国家自然科学基金支持
作者: 时运来, 张 军, 冯 森：南京航空航天大学机械结构力学及控制国家重点实验室，江苏 南京；李 波：蓝星(北京)化工机械有限公司，北京
关键词: 超声电机；直线型；面内模态；压电；Ultrasonic Motor； Linear； Mode In-Plane； Piezoelectric
摘要: 利用一阶纵振和二阶弯振作为工作模态，设计了一种新型直线超声电机。分析了其工作原理，并利用有限元软件对电机的定子进行了动力学分析，详述了椭圆运动的形成过程。对样机进行了实验研究，在驱动频率为55 kHz在驱动频率为55 kHz，驱动电压峰峰值为400 V，预压力为24 N时，电机的最大空载速度为100 mm/s，电机的最大推力为2.5 N，推重比达到了14:1，最大效率达8%。
Abstract: A new type of linear ultrasonic motor based on the first longitudinal mode and the second bending mode was developed. This paper analyzed the operating principle of the motor and the dynamic properties of the stator using the finite element method, and described the formation process of elliptical motion in detail. The prototype was investigated by the experiment, the motor could reach a maximum speed of 120 mm/s, the maximum thrust of 2.5 N, the ratio of the thrust to weight of 14:1 and the maximum efficiency of 8% at the case of the driving frequency was 55 kHz, peak operation voltage was 400 V, and the pre-pressure was 24 N.
文章引用：时运来, 张军, 冯森, 李波. 一种新型面内模态直线超声电机的驱动机理及试验研究[J]. 声学与振动, 2014, 2(4): 29-37. http://dx.doi.org/10.12677/OJAV.2014.24004

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