scholarly journals Finite Element Analysis of Spherical Ultrasonic Motor using Wire Stator

2018 ◽  
Vol 8 (2) ◽  
pp. 74-77
Author(s):  
Fulin Wang ◽  
◽  
Uichi Nishizawa ◽  
Shigeki Toyama
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ultrasonic Motor ◽  
Element Analysis

scholarly journals Theoretical and experimental research on a new rotating standing wave ultrasonic motor

2021 ◽  
Vol 2125 (1) ◽  
pp. 012047
Author(s):  
Xiaozhu Wang ◽  
Jian Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Standing Wave ◽  
Theoretical Basis ◽  
Integrated Design ◽  
Ultrasonic Motor ◽  
Element Analysis ◽  
Optimum Position ◽  
The Finite Element Analysis ◽  
Disc Spring

Abstract In this paper, a new rotating standing wave ultrasonic motor with multiple driving teeth is proposed. Using the method of adding additional teeth, the correction of the B06 surface of the ultrasonic motor vibrator is expected, the design of the optimum position of the drive tooth is realized. At the same time, a method of reducing the stiffness of the rotor is proposed, and the flexibility is met, the integrated design of the rotor and the pressure device can be realized by removing the disc spring. The accuracy of the finite element analysis is verified by the vibration test of the prototype oscillator. The finite element analysis of the main structure parameters of the influence oscillator mode and natural frequency is carried out. It provides theoretical basis for the design and machining of vibration.

Effects of Ultrasonic Motor Stator Teeth Height on Start Reliability

2015 ◽  
Vol 0 (0) ◽  
Author(s):  
Wei Zheng ◽  
Jing-Liang Zhou ◽  
Yu-Zhen Ruan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Traveling Wave ◽  
Ultrasonic Motor ◽  
Wave Type ◽  
Element Analysis ◽  
Factors Affecting ◽  
Ultrasonic Motors ◽  
Wide Range ◽  
New Type

AbstractAs a new type of motor, the traveling wave type rotary ultrasonic motors (TRUM) have a wide range of applications. However, the friction between stator and rotor leads to its poor start reliability, which retards the progress of application of ultrasonic motors. Sometimes TRUMs which are widely used cannot start after storage. Height of tooth of the ultrasonic motor’s stator is one of the factors affecting TRUM’s start stabilizing. In this paper, combined with the ultrasonic motor running mechanism, the factors that affect TRUM’s start reliability are studied. Model of ultrasonic motor stator tooth height is analyzed by finite element analysis (FEA). Five TRUMs with different tooth heights are fabricated and measured. A TRUM with 1.85 mm tooth height can start properly in humidity 90%, but ultrasonic motors with 1.8–1.9 mm tooth height cannot start properly under the same conditions.

Computer Simulation and Modelling of Standing Wave Piezoelectric Ultrasonic Motor Using a Single Flexural Vibration Ring Transducer

2013 ◽  
Author(s):  
M. Shafik ◽  
L. Makombe ◽  
B. Mills
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Standing Wave ◽  
Travelling Waves ◽  
Ultrasonic Motor ◽  
Housing Unit ◽  
Algebraic Solution ◽  
Element Analysis ◽  
Simulation And Modelling ◽  
Motor Design

A rotary standing wave ultrasonic motor using single flexural ring transducer is developed and presented in this paper. The motor consists of three main components, the stator, rotor and housing unit. The stator is a piezoelectric transducer ring. The rotor is designed of a compact driving wheel and the shaft. The housing unit is made of a transparent thermoplastic Perspex material and is part of the motor working mechanism. The motor design, structure, working principles and modelling using finite element analysis is discussed and presented in this paper. The simulation and modelling using finite element analysis for the motor is used in the motor design development process. Finite element has been used to examine the motor structure by performing an algebraic solution of a set of equations, describing an ideal model structure, with a finite number of variables. The established simulation and modelling for ultrasonic motor using finite element analysis enabled to select the material of the flexural transducer ring, investigate the material deformation, defining the operating parameters for the motor and establish the principles of motion. The motor working principles is based on creating travelling waves vibration modes, of oscillating structures that are superimposed in the stator, generating elliptical micro motions at the stator tips. Pressing the rotor against the stator tips, using an elastic spring, the micro motions are converted into a rotary motion via the friction between the tips of the stator and the rotor. A prototype of the motor was fabricated and its characteristics measured. Experimental tests showed that the electrical working parameters are: Current: 100 m-amp’s, Voltage: 100 volts, Frequency: 41.7kHz, typical speed of movement: 32 revolutions per minute, a resolution of less than 50μm and maximum load of 1.5 Newton.

Design and finite element analysis of a new stack ultrasonic motor based on in-plane mode

2012 ◽  
Vol 21 (11) ◽  
pp. 115002 ◽  
Author(s):  
Hou Xiaoyan ◽  
Lee Heow Pueh ◽  
Ong Chong Jin ◽  
Lim Siak Piang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ultrasonic Motor ◽  
Element Analysis ◽  
Plane Mode

scholarly journals A novel fixable cylindrical ultrasonic motor

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401982998 ◽  
Author(s):  
Dong Sun ◽  
Yu-juan Tang ◽  
Jiong Wang ◽  
Xin-jie Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Vibration Mode ◽  
Ultrasonic Motor ◽  
Maximal Velocity ◽  
Element Analysis ◽  
Inner Radius ◽  
The Finite Element Analysis ◽  
Working Principle ◽  
Output Characteristics

A novel cylindrical ultrasonic motor easy to be fixed is proposed in this article. There are threaded holes on the bottom of stator used for fixing, distinguishing it from other cylindrical stators. The bottom is machined as a round lug boss. Its radius is smaller than the inner radius of the stator in order not to affect the excitation of vibration mode. The finite element analysis was accomplished to verify the working principle. Based on the analysis, a prototype was fabricated and measured. The mechanical output characteristics were obtained by experiments. The maximal velocity of the proposed motor is 170 r/min at the operating frequency of 31.6 kHz.

Computer Simulation and Modelling of Standing Wave Piezoelectric Ultrasonic Motor Using a Single Flexural Transducer

2012 ◽  
Author(s):  
M. Shafik
Keyword(s):  
Finite Element Analysis ◽  
Computer Simulation ◽  
Finite Element ◽  
Standing Wave ◽  
Flexural Vibration ◽  
Ultrasonic Motor ◽  
Algebraic Solution ◽  
Operating Parameters ◽  
Element Analysis ◽  
Simulation And Modelling

This paper presents a standing wave piezoelectric ultrasonic using a flexural vibration transducer. The motor consists of three main parts, stator, rotor and sliding element. The stator is a single piezoceramic flexural vibration bar. The rotor is made up of the motor driving wheel and the shaft. A computer simulation and modelling using finite element analysis for the proposed motor is discussed and used in the motor design development process. Finite element analysis has been used to evaluate the motor structure by performing an algebraic solution of a set of equations, describing an ideal model structure, with a finite number of variables. The established simulation and modelling for ultrasonic motor using finite element analysis enabled to select, the material of the flexural transducer, defining the operating parameters for the motor, determining the principles of motion and proposing an innovative technique to control the direction of motion, by controlling the phase between the two modes of vibrations. This enabled to create two directions of motion from a single vibration bar. A prototype of the proposed motor was fabricated and measured. This showed that operating parameters of the fabricated prototype are: frequency equal to 40.7 KHz, voltage: 50: 100 volt and current: 50: 100 m-amperes. This is showed a close agreement with FEA. Typical output of the prototype is no-load travelling speed of 28 mm/s, a resolution on the order of micrometers and a dynamic response <100 μsec. The motor is able to carry a load equal to 0.78 Newton. The developed motor has been used successfully in EDM industrial applications.

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