A New Type Multi-Mode Linear Ultrasonic Motor

2011 ◽  
Vol 189-193 ◽  
pp. 2961-2964 ◽  
Author(s):  
Tie Min Zhang ◽  
Luo Ping ◽  
Liang Li
Keyword(s):  
Longitudinal Mode ◽  
Tangential Direction ◽  
Ultrasonic Motor ◽  
Finite Element Software ◽  
Linear Ultrasonic Motor ◽  
Bending Mode ◽  
Exciting Frequency ◽  
New Type ◽  
Piezoelectric Coupling ◽  
Multi Mode

A prototype for multi-mode linear ultrasonic motor has been proposed and designed. It is designed using a combination of the first longitudinal and the first bending mode. The piezoelectric ceramics convert energy using the longitudinal d33 effect which allows an improved reliability, large vibration amplitudes and excellent piezoelectric coupling. The normal direction motion of the driving element is excited by the first longitudinal mode. The tangential direction motion of the driving element is excited by the first bending mode. The resulting displacement of the driving element is transmitted by the frictional force between the vibrator and the rail in a linear motion. The analysis on the modals of the composite vibrator by using the ANSYS finite element software has been presented in this paper. Finally, the vibrator structure of the motor and the motor's own structures are designed. The basic design is discussed and simulations are compared with the experimental results, the results show that the motor characteristics can be optimized for a particular task by choosing the appropriate operating parameters such as exciting voltage, exciting frequency and normal force.

Actuating Mechanism and Design of a Double Driving Feet Linear Ultrasonic Motor Using Longitudinal Vibration Transducer

2010 ◽  
Vol 434-435 ◽  
pp. 775-778
Author(s):  
Wei Shan Chen ◽  
Ying Xiang Liu ◽  
Jun Kao Liu ◽  
Sheng Jun Shi
Keyword(s):  
Transient Analysis ◽  
Longitudinal Vibration ◽  
Structural Parameters ◽  
Ultrasonic Motor ◽  
Longitudinal Vibrations ◽  
Resonant Frequencies ◽  
Vibration Transducer ◽  
Linear Ultrasonic Motor ◽  
Piezoelectric Coupling ◽  
Vertical Vibrations

A double driving feet linear ultrasonic motor using longitudinal vibration transducer is proposed in this paper. The stator of proposed motor contains a horizontal transducer and two vertical transducers. The horizontal transducer includes two exponential shape horns located at the leading ends, and each vertical transducer contains one exponential shape horn. The horns intersected at the tip ends where located the driving feet. The horizontal and vertical vibrations of driving feet are generated by the longitudinal vibrations of horizontal and vertical transducers, respectively. Longitudinal vibrations are superimposed in the stator and generated elliptical motions at the driving feet. The two vibration modals of stator are gained with FEM, and the resonant frequencies of two vibration modals are degenerated by adjusting the structural parameters. Transient analysis of piezoelectric coupling states the good and strong elliptical motions of driving feet, and verifies the theoretical feasibility of proposed motor.

Design and Analysis of a Linear Ultrasonic Motor with Composite Bending and Torsional Vibration Modes

2014 ◽  
Vol 945-949 ◽  
pp. 1327-1332 ◽  
Author(s):  
He Long Wang ◽  
Wei Shan Chen ◽  
Jun Kao Liu
Keyword(s):  
Torsional Vibration ◽  
Transient Analysis ◽  
Structural Parameters ◽  
Ultrasonic Motor ◽  
Vibration Modes ◽  
Bending Vibration ◽  
First Order ◽  
Linear Ultrasonic Motor ◽  
New Type ◽  
Working Principle

A new type linear ultrasonic motor using Second-order bending and First-order torsional modes (2B-1T) is proposed. The ultrasonic motor has two driving feet and the continuous linear motions of sliders are realized by the frictional force between stator and sliders. In this new design, bending vibration is excited by d33 mode, which controls the preload pressure, and torsional vibration is excited by d15 mode, which generates the driving force. The elliptical trajectories of both feet are achieved, when the phase difference of the two modes is 90° in time and space. The working principle of ultrasonic motor using 2B-1T is simulated. A parametric model of the stator is designed. The sensitive analyses of structural parameters are gained with modal analysis. The characteristics and trajectories of driver feet are studied by transient analysis. These results can provide theoretical basis for the development of this new type ultrasonic motor.

A standing wave linear ultrasonic motor operating in face-diagonal-bending mode

2013 ◽  
Vol 103 (10) ◽  
pp. 102904 ◽  
Author(s):  
Penghong Ci ◽  
Guoxi Liu ◽  
Zhijiang Chen ◽  
Shuxiang Dong
Keyword(s):  
Standing Wave ◽  
Ultrasonic Motor ◽  
Linear Ultrasonic Motor ◽  
Bending Mode

Study of a new type linear ultrasonic motor with double-driving feet

Ultrasonics ◽  
2006 ◽  
Vol 44 ◽  
pp. e585-e589 ◽  
Author(s):  
Cunyue Lu ◽  
Tian Xie ◽  
Tieying Zhou ◽  
Yu Chen
Keyword(s):  
Ultrasonic Motor ◽  
Linear Ultrasonic Motor ◽  
New Type

A New Type Butterfly-Shaped Transducer Linear Ultrasonic Motor

2011 ◽  
Vol 22 (6) ◽  
pp. 567-575 ◽  
Author(s):  
Yunlai Shi ◽  
Yubao Li ◽  
Chunsheng Zhao ◽  
Jianhui Zhang
Keyword(s):  
Ultrasonic Motor ◽  
Linear Ultrasonic Motor ◽  
New Type

A linear ultrasonic motor using the first longitudinal and the fourth bending mode

1997 ◽  
Vol 6 (5) ◽  
pp. 619-627 ◽  
Author(s):  
Thilo Bein ◽  
Elmar J Breitbach ◽  
Kenji Uchino
Keyword(s):  
Ultrasonic Motor ◽  
Linear Ultrasonic Motor ◽  
Bending Mode

Study on V-Shaped Linear Ultrasonic Motor and its Experiments

2011 ◽  
Vol 199-200 ◽  
pp. 78-82
Author(s):  
Zhi Rong Li ◽  
Hong Bing Wang ◽  
Hai Xu ◽  
Chao Chen
Keyword(s):  
Driving Force ◽  
Maximum Velocity ◽  
Longitudinal Mode ◽  
Ultrasonic Motor ◽  
Structural Dynamic ◽  
First Order ◽  
Longitudinal Modes ◽  
Linear Ultrasonic Motor ◽  
Operation Modes ◽  
Mode A

A V-shaped linear ultrasonic motor with a stator and a slider has been developed. The stator consists of two orthogonal Langevin actuators which is joined together in their ends. The Langevin actuators are symmetrical and have same first order longitudinal mode. A linear motion of the slider is generated by friction between the stator and the slider when the two first order longitudinal modes are combined. In this paper, structural dynamic design on the stator is completed with Finite Element Method(FEM). The prototype motor is manufactured based on the design results. The operation modes of the stator and the output performances of the motor are tested. The diameter and length of the Langevin actuator are 20mm and 58mm, respectively. The mass of the stator is 290g. The first order longitudinal frequency of the Langevin actuator is 27.47 kHz (FEM simulating result) and 27.36 kHz (expermental result), respectively. The maximum driving force of the motor approaches 40N. The maximum velocity of the motor is about 100 mm/s. So the stator’s operation modes are consistent with the design results, and the motor output properties have characteristics of slower velocity and stronger force.

scholarly journals A Longitudinal-Bending Hybrid Linear Ultrasonic Motor and Its Driving Characteristic

2022 ◽  
Vol 2022 ◽  
pp. 1-14
Author(s):  
Huajie Qu ◽  
Chendong Liu ◽  
Lei Zhang ◽  
Jianjun Qu ◽  
Baoyu Song
Keyword(s):  
Average Velocity ◽  
Vibration Mode ◽  
Longitudinal Vibration ◽  
Ultrasonic Motor ◽  
Low Noise ◽  
High Tech ◽  
Driving Frequency ◽  
Finite Element Software ◽  
Linear Ultrasonic Motor ◽  
Stall Force

As a new type of driver, linear ultrasonic motor (LUSM) is widely used in the high-tech field because of its low speed, high thrust, low noise, and no electromagnetic interference. However, as an actuator used in microdevices, most of the existing LUSMs are large in size and not compact in structure. In order to overcome these limitations, a new structure of linear ultrasonic motor’s stator is developed in this paper. The stator is similar to a tuning fork structure, which is divided into three parts: two driving feet, two driving legs, and the driving body. By using the first-order longitudinal vibration mode of the whole stator and the unique partial second-order bending vibration mode of the driving legs to achieve vibration mode degeneracy, a mode hybrid linear ultrasonic motor that is easy to miniaturize is proposed. Its working principle is analyzed. The dynamic analysis of the stator is carried out by using finite element software. The structure dimension of the stator and the driving frequency under the working mode are determined. At the same time, the feasibility of driving feet synthesizing elliptical motion is verified theoretically and experimentally. In addition, the LUSM test setup is built. The effects of driving frequency and Vpp on stator stall force and average velocity are studied. The results show that the maximum stall force can reach 99 mN, and the average velocity of the motor is 88.67 mm/s with Vpp = 320 V and driving frequency 80.2 kHz. The proposed LUSM is appropriate for use in occasions with quick return characteristics, like the controlling valve or nozzle of the printer. The research results provide guidance for the stator design of the linear ultrasonic motor.

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