针对惯性直线超声电机输出力小、结构不稳定的问题,通过改进其结构的振动方式,提高其输出力和结构稳定性。首先提出了一种新的结构惯性直线超声电机,该电机采用矩形板结构,利用其弯曲振动;然后分析该电机的工作原理,并利用了ANSYS workbench对定子的结构振动仿真分析,最后设计和制作了惯性直线超声电机。样机的实验表明,它有较宽的工作频率,运行稳定;在工作频率为23.6kHz时,最大运行速度为197mm/s,在工作频率为23.2kHz时,最大推力为7.3N,惯性直线超声电机的驱动方向会在某一频率点突变。
Abstract
The inertial linear ultrasonic motors have the disadvantages such as small output force and unstable structure. However, the output force and structural stability of the motor can be improved by modifying the vibration mode of the structure. First, a new structural design of inertial linear ultrasonic motor is proposed. The motor adopts a rectangular plate structure, which utilizes the bending vibration. Then the working principle is illustrated and the vibration simulation of the stator is analyzed by using the ANSYS workbench software. Finally, the inertial linear ultrasonic motor is designed and manufactured. Tests of the prototype indicate that the motor has a wide working frequency and stable running. When the working frequency is 23.6 kHz, the maximum speed of the motor is 197 mm/s, while when the working frequency is 23.2 kHz, the maximum thrust is 7.3 N. Experiments show that the driving direction of the proposed inertial linear ultrasonic motor has an abrupt change at a particular frequency point.
关键词
超声电机 /
惯性直线超声电机 /
弯曲振动
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Key words
Ultrasonic motor /
Inertial ultrasonic motor /
Bending vibration
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参考文献
[1] 赵淳生.超声电机技术与应用[M].北京:科学出版社,2007.1-22.
Zhao Chun-sheng. Ultrasonic motors technologies and applications[M].Beijing: sciencep ,2007.1-22.
[2] 赵淳生,朱华.超声电机技术的发展和应用[J].机械制造与自动化,2008,37(3):1-9.
Zhao Chun-sheng,Zhu Hua.Development and Application of Ultrasonic Motors Technologies[J]. Machine Building & Automation, 2008, 37(3):1-9.
[3] 赵淳生,李朝东.日本超声电机的产业化、应用和发展[J].振动、测试与诊断,1999,19(1):1-7.
Zhao Chun-sheng,Li Chao-dong. Industrialization, Applications and Development of Ultrasonic Motors in Japan[J]. Journal of Vibration, Measurement & Diagnosis, 1999, 19(1):1-7.
[4] 金家楣,时运来,李玉宝,赵淳生.新型惯性式直线超声压电电机的运动机理及实验研究[J].光学精密工程,2008,16(12): 2371-2377.
Jin Jia-mei,Shi Yun-lai,LI Yu-bao,Zhao Chun-sheng. Research on novel inertial linear ultrasonic piezoelectric motor[J]. Optics and Precision Engineering,2008,16(12):2371-2377.
[5] 李向华,陈超,赵淳生.非接触式直线型超声电机的振动分析[J]. 振动与冲击,2010,29(7):149-152
Li Xiang-hua,Chen Chao,Zhao Chun-sheng. Vibration Studies of non-contact linear ultrasonic motor[J]. Journal of vibration and shock,2010,29(7):149-152
[6] 周胜利,姚志远.直线超声电机定/动子接触的微观力学模型[J].振动与冲击,2012,31(20):90-93.
Zhou Sheng-li,Yao Zhi-yuan.Micromechanic model for contact between a linear ultrasonic motor’s stator and mover[J].Journal of vibration and shock, 2012,31(20):90-93.
[7] 郭辉,李迅波,李华峰. 面内模态方形压电超声电机的工作机理与实验[J].振动与冲击,2009,28(12):68-70.
Guo Hui,Li Xun-bo,Li Hua-feng. Prototype Experiment and Working Mechanism Analysis of Square Ultrasonic Motor Based on in-plane Mode[J]. Journal of vibration and shock, 2009,28(12):68-70.
[8] Edouard Leroy,José Lozada,Moustapha Hafez.A curved ultrasonic actuator optimized for spherical motors: Design and experiments[J]. Ultrasonics, 2014,54(6):1610-1619.
[9] V. Bolborici a,F.P. Dawson b,M.C. Pugh. A finite volume method and experimental study of a stator of a piezoelectric traveling wave rotary ultrasonic motor[J]. Ultrasonics,2014,54(3):809-820.
[10] Tomoaki Mashimo. Micro ultrasonic motor using a one cubic millimeter stator[J]. Sensors and Actuators A: Physical,2014,213(10):102-107.
[11] S.-S. Jeong, J.-K. Park & T.-G. Park.Speed and Torque Characteristics of Three-Phase Ultrasonic Motor[M], Ferroelectrics,2014, 466:1,110-118.
[12] Shi Jingzhuo,You Dongmei. Characteristic model of travelling wave ultrasonic motor[J]. Ultrasonics,2014,54(2):725-730.
[13] KIM Jong-Wook,PARK Choong-Hyo,LIM Jung-Hoon,et al. Driving characteristics of octagon-type ultrasonic motor[J].Springer,2013,20(1):71-75.
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