A ring-type traveling wave linear ultrasonic motor based on in-plane third-order modal vibration

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2023-05-04 DOI:10.1080/07315171.2023.2189853

Junlin Yang, Ye Chen, Jinbo Yang, Chaoqun Xiang, Liang Li

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引用次数: 1

Abstract

Abstract This paper proposes a new type of circular ring traveling wave linear ultrasonic motor with incomplete teeth. The motor’s movable slider is pressed against the end face of the tooth structure on the outer surface of the circular ring vibrator under a certain pre-pressure, four piezoelectric ceramic plates are evenly distributed at 90° intervals on the inner side of the circular structure, and four sets of driving teeth are arranged at 45° intervals from the position of the piezoelectric ceramic plates.When the motor is in operation, only one driving tooth works, and the life of the ultrasonic motor can be increased by rotating the different working teeth. The motor operates in two in-plane third-order bending modes that are orthogonal to each other at the same frequency. The dynamic design and simulation of the vibrator was carried out using ANSYS finite element software to analyze the effect of the structure on the mode. The principle prototype was fabricated, and the operating mode of the vibrator was measured using a laser Doppler vibrometer (LDV), and the vibration characteristics and output performance of the prototype were tested. Experimental results show that the motor runs smoothly at the excitation voltage of 240 V peak-to-peak, the excitation frequency of 30.459 kHz and the pre-pressure of 0.6 N, with the maximum output force of 90 mN and the motor no-load speed of 102 mm/s.

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一种基于面内三阶模态振动的环形行波直线超声电机

提出了一种新型不完整齿环行波直线超声电机。电机的活动滑块在一定的预压力下压在环形振动器外表面的齿状结构端面上，四块压电陶瓷板以90°的间隔均匀分布在圆形结构内侧，四组驱动齿距压电陶瓷板位置以45°的间隔布置。当电机工作时，只有一个驱动齿工作，通过旋转不同的工作齿可以增加超声波电机的寿命。电机在两个平面内三阶弯曲模式下工作，这两个模式在相同频率下彼此正交。利用ANSYS有限元软件对激振器进行了动态设计与仿真，分析了结构对振型的影响。制作了原理样机，利用激光多普勒测振仪(LDV)测量了振动器的工作模式，测试了样机的振动特性和输出性能。实验结果表明，在激励电压为240 V峰对峰、激励频率为30.459 kHz、预压为0.6 N时，电机运行平稳，最大输出力为90 mN，电机空载速度为102 mm/s。

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.