Finite-element analysis of the rotor/stator contact in a ring-type ultrasonic motor

1992 ◽  
Vol 39 (6) ◽  
pp. 668-674 ◽  
Author(s):  
T. Maeno ◽  
T. Tsukimoto ◽  
A. Miyake
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Ultrasonic Motor ◽  
Element Analysis ◽  
Ring Type

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.

Generalization of the tetraparametric assembly method for the optimization of bolt tightening sequences in ring-type joints

2019 ◽  
Vol 233 (5) ◽  
pp. 991-1000 ◽  
Author(s):  
Ibai Coria ◽  
Mikel Abasolo ◽  
Josu Aguirrebeitia ◽  
Igor Fernández de Bustos
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pressure Vessel ◽  
Load Distribution ◽  
Experimental Tests ◽  
Element Analysis ◽  
Ring Type ◽  
Joint Geometry ◽  
Assembly Method ◽  
Free Service

Uniform bolt load is critical to achieve leak-free service in pressure vessel gasketed joints. In a previous work, the authors presented the tetraparametric assembly method, which enabled to obtain a uniform final load distribution in a one-pass tightening sequence. The accuracy of the method was proved by finite element analysis and experimental tests. However, the tetraparametric assembly method was only developed for one-pass tightening sequences, and in some cases more than one pass can be necessary. Furthermore, the method was only validated for a particular joint geometry. In this sense, the present work generalizes the method for two-pass tightening sequences and studies the range of application.

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
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