STRUCTURE DESIGN AND FINITE ELEMENT ANALYSIS OF A NEW MULTI-DEGREE-OF-FREEDOM ULTRASONIC MOTOR

被引：0

作者：

Yan, Xiao-xin ^{[1
]}

Yao, Zhi-yuan ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China

来源：

PROCEEDINGS OF THE 2015 SYMPOSIUM ON PIEZOELECTRICITY, ACOUSTIC WAVES AND DEVICE APPLICATIONS | 2015年

关键词：

Multi-degree-of-freedom; Ultrasonic motor; Bending vibration; Finite element analysis; Flexible hinge; ACTUATOR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a new multi-degree-of-freedom (MDOF) ultrasonic motor is designed. The motor is composed of four rectangular vibrators which are arranged as the Chinese word 'ten'. The stator is driven by a composite of bending vibrations in two orthogonal directions. In the design process, the finite element model is established to find the anti-symmetric and symmetric modes of the stator. Structural dimensions that affect modal frequencies are selected and optimized. Through harmonic response simulation, the running state of the stator under sinusoidal signal is obtained and results show bending vibration is preferred. According to the analysis results, a motor prototype is made. Flexible hinges are used to improve the motor structure at the connecting position. The prototype has good output characteristics and the speed of the rotor can reach 0.122r/s under 400V voltage. The new motor has a certain reference value in the research of MDOF ultrasonic motors.

引用

页码：318 / 321

页数：4

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