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Ultrasonic Motor Applications
Published in Kenji Uchino, Micro Mechatronics, 2019
3. The piezoelectric motor has the following four benefits in a compact shape (<30 W) compared with the traditional electromagnetic motors: (1) more suitable to miniaturization, (2) higher efficiency, (3) nonflammable. What is the remaining benefit? Answer simply.
Analysis of structural dynamics for a cylindrical-type piezoelectric motor
Published in Artde D.K.T. Lam, Stephen D. Prior, Siu-Tsen Shen, Sheng-Joue Young, Liang-Wen Ji, Engineering Innovation and Design, 2019
A piezoelectric motor is an actuating device that utilizes an electromechanical switching vibration (with a frequency that is in the ultrasonic range) as its drive source. The human ear’s hearing range is approximately 20 Hz–20 KHz, which is a range that allows for vibration frequencies to be detected. In contrast, ultrasonic waves have frequencies that are higher than 20 KHz, making them particularly ideal for situations in which quiet motors are required.
Precise Position Control of Piezo Actuator
Published in Bogdan M. Wilamowski, J. David Irwin, Control and Mechatronics, 2018
Jian-Xin Xu, Sanjib Kumar Panda
Piezoelectric motors made of solid states are a new kind of motors suitable for low-speed, high-precision positioning applications. The rise in the trend to use piezoelectric motors for low-speed high-precision applications is mainly due to the absence of electromagnetic field, which leads to simple construction, compact size, and high torque at low speed. The advent of high-speed switching power devices and material with less frictional wear and tear have made the use of piezoelectric motor feasible in industrial applications that demand precise positioning. In this chapter, a linear ultrasonic piezo motor (LUSM) is used as an illustrative example, and its structure, working principle, and speed characteristics are discussed.
TRIZ method for innovation applied to an hoverboard
Published in Cogent Engineering, 2018
Giampiero Donnici, Leonardo Frizziero, Daniela Francia, Alfredo Liverani, Gianni Caligiana
If we consider Principles 18 (Mechanical Vibration), we might think to replace the DC electric motor with a piezoelectric motor (Figure 13).