---
_id: '9539'
abstract:
- lang: eng
  text: 'Classically, rotary motors with gears and spindle mechanisms are used to
    achieve translatory motion. In means of miniaturization and weight reduction piezoelectric
    linear motors are of interest. Several ultrasonic linear motors found in literature
    base on the use of two different vibration modes. Most often flexural and longitudinal
    modes are combined to achieve an elliptic micro-motion of surface points. This
    micro-motion is converted to direct linear (or translatory) motion of a driven
    slider. To gain high amplitudes of the micro-motion and thus having a powerful
    motor, the ultrasonic vibrator should be driven near the eigenfrequency of its
    modes. Additionally, low mechanical and electrical losses lead to increased efficiency
    and large amplitude magnification in resonance. This demands a geometrical design
    that fits the eigenfrequencies of the two different modes. A frequency-deviation
    of only a few percent leads to non-acceptable disturbance of the elliptical motion.
    Thus, the mechanical design of the vibrators has to be done very carefully. Within
    this contribution we discuss different motor designs based on the coupling of
    two the same longitudinal vibrations within one structure to generate an elliptic
    motion of surface points. Different concepts based on piezoelectric plates and
    Langevin transducers are compared. Benefits and drawbacks against the combination
    of longitudinal and bending modes will be discussed. Numerical results of the
    stator vibration as well as motor characteristics are validated by measurements
    on different prototypes. '
author:
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Maik
  full_name: Mracek, Maik
  last_name: Mracek
- first_name: Jens
  full_name: Twiefel, Jens
  last_name: Twiefel
- first_name: Piotr
  full_name: Vasiljev, Piotr
  last_name: Vasiljev
citation:
  ama: Hemsel T, Mracek M, Twiefel J, Vasiljev P. Piezoelectric linear motor concepts
    based on coupling of longitudinal vibrations. <i>Ultrasonics</i>. 2006;44, Supplement(0):e591-e596.
    doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>
  apa: Hemsel, T., Mracek, M., Twiefel, J., &#38; Vasiljev, P. (2006). Piezoelectric
    linear motor concepts based on coupling of longitudinal vibrations. <i>Ultrasonics</i>,
    <i>44</i>, <i>Supplement</i>(0), e591–e596. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>
  bibtex: '@article{Hemsel_Mracek_Twiefel_Vasiljev_2006, title={Piezoelectric linear
    motor concepts based on coupling of longitudinal vibrations}, volume={44, Supplement},
    DOI={<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>},
    number={0}, journal={Ultrasonics}, author={Hemsel, Tobias and Mracek, Maik and
    Twiefel, Jens and Vasiljev, Piotr}, year={2006}, pages={e591–e596} }'
  chicago: 'Hemsel, Tobias, Maik Mracek, Jens Twiefel, and Piotr Vasiljev. “Piezoelectric
    Linear Motor Concepts Based on Coupling of Longitudinal Vibrations.” <i>Ultrasonics</i>
    44, Supplement, no. 0 (2006): e591–96. <a href="https://doi.org/10.1016/j.ultras.2006.05.056">https://doi.org/10.1016/j.ultras.2006.05.056</a>.'
  ieee: T. Hemsel, M. Mracek, J. Twiefel, and P. Vasiljev, “Piezoelectric linear motor
    concepts based on coupling of longitudinal vibrations,” <i>Ultrasonics</i>, vol.
    44, Supplement, no. 0, pp. e591–e596, 2006.
  mla: Hemsel, Tobias, et al. “Piezoelectric Linear Motor Concepts Based on Coupling
    of Longitudinal Vibrations.” <i>Ultrasonics</i>, vol. 44, Supplement, no. 0, 2006,
    pp. e591–96, doi:<a href="https://doi.org/10.1016/j.ultras.2006.05.056">10.1016/j.ultras.2006.05.056</a>.
  short: T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, Ultrasonics 44, Supplement
    (2006) e591–e596.
date_created: 2019-04-29T09:03:50Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1016/j.ultras.2006.05.056
issue: '0'
keyword:
- Piezoelectric linear motor
language:
- iso: eng
page: e591 - e596
publication: Ultrasonics
publication_identifier:
  issn:
  - 0041-624X
quality_controlled: '1'
status: public
title: Piezoelectric linear motor concepts based on coupling of longitudinal vibrations
type: journal_article
user_id: '55222'
volume: 44, Supplement
year: '2006'
...