Performance evaluation of a bimodal standing-wave ultrasonic motor considering nonlinear electroelasticity: Modeling and experimental validation

2020 ◽  
Vol 141 ◽  
pp. 106475 ◽  
Author(s):  
Xiang Li ◽  
Chaohao Kan ◽  
Yuan Cheng ◽  
Zhiwei Chen ◽  
Taian Ren
Keyword(s):  
Performance Evaluation ◽  
Standing Wave ◽  
Experimental Validation ◽  
Ultrasonic Motor

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.

Development and performance evaluation of a standing-wave thermo-acoustic engine

2019 ◽  
Author(s):  
S. Spambo ◽  
M. Ngcukayitobi ◽  
H. Shamase ◽  
S. Gqibani ◽  
L.K Tartibu
Keyword(s):  
Performance Evaluation ◽  
Standing Wave ◽  
And Performance

Kinematics, Workspace Optimization, and Performance Evaluation of a 3-Leg 6-DOF Robot in RRRS Configuration

2020 ◽  
Author(s):  
Nathan A. Jensen ◽  
Carl A. Nelson
Keyword(s):  
Performance Evaluation ◽  
Degrees Of Freedom ◽  
Experimental Validation ◽  
Parallel Manipulators ◽  
Parallel Robot ◽  
Inverse Kinematic ◽  
And Performance ◽  
Workspace Optimization ◽  
Optimization And Performance

Abstract Underactuated parallel manipulators that achieve 6 DOF via multiple controllable degrees of freedom per leg are often pursued and reported due to their large workspaces. This benefit comes at a cost to the manipulator’s performance, however. Such manipulators must then be evaluated in order to characterize their kinematics in terms of position and motion. This paper establishes a pair of inverse kinematic solutions for a previously proposed and prototyped 3-leg, 6-DOF parallel robot. These solutions are then used to define the robot’s workspace with experimental validation and to optimize the robot’s geometry for maximum workspace volume. The linear components of the Jacobian are then defined, allowing for analysis of the manipulability of the robot. The full Jacobian is also defined, and singularities are examined throughout the workspace of the robot.

A Standing Wave Piezoelectric Ultrasonic Motor Using a Single Flexural Vibration Ring Transducer

2013 ◽  
Vol 415 ◽  
pp. 126-131
Author(s):  
M. Shafik ◽  
L. Makombe
Keyword(s):  
Standing Wave ◽  
Flexural Vibration ◽  
Experimental Tests ◽  
Maximum Load ◽  
Ultrasonic Motor ◽  
Housing Unit ◽  
Element Analysis ◽  
Design Structure ◽  
Piezoelectric Ultrasonic Motor ◽  
Working Parameters

This paper presents a rotary standing wave ultrasonic motor using single flexural vibration ring transducer. 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 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. A prototype of the motor was fabricated and its characteristics measured. Experimental tests showed that the motor electrical working parameters are: Current: 100 m-amps, Voltage: 100 volts, Frequency: 41.7 kHz, typical speed of 32 revolutions per minute, a resolution of less than 50μm and maximum load of 1.5 Newton.

Effect of temperature rise on characteristics of a standing wave ultrasonic motor

2019 ◽  
Vol 30 (6) ◽  
pp. 855-868 ◽  
Author(s):  
Qibao Lv ◽  
Zhiyuan Yao ◽  
Lifeng Zhou ◽  
Lingyong Pan
Keyword(s):  
Standing Wave ◽  
Temperature Rise ◽  
Piezoelectric Materials ◽  
Ultrasonic Motor ◽  
Effect Of Temperature ◽  
Material Parameters ◽  
Proposed Model ◽  
And Performance ◽  
Output Characteristics ◽  
Frequency Temperature

Heat loss occurs in the process of energy conversion, which causes the temperature rise and performance degradation of ultrasonic motor. In this article, a novel theoretical model is developed to investigate the temperature field and output characteristics of a standing wave ultrasonic motor. The roughness of contact surface and the interaction between temperature rise and material parameters of stator are taken into account in the proposed model. The frequency–temperature characteristics of stator are studied, and the changes in the dielectric coefficients of piezoelectric materials with respect to the temperature are determined by experimental data. The accuracy and effectiveness of the developed model are validated by correlative experiment. The results show that the developed model can not only predict the temperature variation of motor in continuous operation but also evaluate the influence of surface roughness and various input parameters on output characteristics of motor. These researches will give useful guidelines for optimizing heat source and enhancing reliability of motor.

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