Details
| Original language | English |
|---|---|
| Pages (from-to) | 71-83 |
| Number of pages | 13 |
| Journal | Journal of Intelligent Material Systems and Structures |
| Volume | 6 |
| Issue number | 1 |
| Publication status | Published - 1 Jan 1995 |
| Externally published | Yes |
Abstract
Piezoelectric ultrasonic motors are a new type of actuator. They are characterized by high torque at low rotational speed, simple mechanical design and good controllability. They also provide a high holding torque even if no power is applied. Compared to electromagnetic actuators the torque per volume ratio of piezoelectric ultrasonic motors can be higher by an order of magnitude. Recently various types of piezoelectric ultrasonic motors have been developed for industrial applications such as cameralens drive or as actuator in the head restraint of automobile seats. This paper describes several types of piezoelectric ultrasonic motors. In the first part the working principle of the travelling wave motor is explained. In the second part other types of piezoelectric ultrasonic motors are described and classified with respect to the vibration modes and contact mechanisms used in their design. Finally some open problems in piezoelectric ultrasonic motor research are addressed.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanical Engineering
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In: Journal of Intelligent Material Systems and Structures, Vol. 6, No. 1, 01.01.1995, p. 71-83.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Piezoelectric Ultrasonic Motors
AU - Wallaschek, Jörg
N1 - Copyright: Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1995/1/1
Y1 - 1995/1/1
N2 - Piezoelectric ultrasonic motors are a new type of actuator. They are characterized by high torque at low rotational speed, simple mechanical design and good controllability. They also provide a high holding torque even if no power is applied. Compared to electromagnetic actuators the torque per volume ratio of piezoelectric ultrasonic motors can be higher by an order of magnitude. Recently various types of piezoelectric ultrasonic motors have been developed for industrial applications such as cameralens drive or as actuator in the head restraint of automobile seats. This paper describes several types of piezoelectric ultrasonic motors. In the first part the working principle of the travelling wave motor is explained. In the second part other types of piezoelectric ultrasonic motors are described and classified with respect to the vibration modes and contact mechanisms used in their design. Finally some open problems in piezoelectric ultrasonic motor research are addressed.
AB - Piezoelectric ultrasonic motors are a new type of actuator. They are characterized by high torque at low rotational speed, simple mechanical design and good controllability. They also provide a high holding torque even if no power is applied. Compared to electromagnetic actuators the torque per volume ratio of piezoelectric ultrasonic motors can be higher by an order of magnitude. Recently various types of piezoelectric ultrasonic motors have been developed for industrial applications such as cameralens drive or as actuator in the head restraint of automobile seats. This paper describes several types of piezoelectric ultrasonic motors. In the first part the working principle of the travelling wave motor is explained. In the second part other types of piezoelectric ultrasonic motors are described and classified with respect to the vibration modes and contact mechanisms used in their design. Finally some open problems in piezoelectric ultrasonic motor research are addressed.
UR - http://www.scopus.com/inward/record.url?scp=0029209393&partnerID=8YFLogxK
U2 - 10.1177/1045389X9500600110
DO - 10.1177/1045389X9500600110
M3 - Article
AN - SCOPUS:0029209393
VL - 6
SP - 71
EP - 83
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
SN - 1045-389X
IS - 1
ER -