A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Liang Wang
  • Tim Wielert
  • Jens Twiefel
  • Jiamei Jin
  • Joerg Wallaschek
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Details

Original languageEnglish
Article number085013
JournalSmart materials and structures
Volume26
Issue number8
Publication statusPublished - Aug 2017

Abstract

This paper proposes a non-resonant linear ultrasonic motor utilizing longitudinal traveling waves. The longitudinal traveling waves in the rod type stator are generated by inducing longitudinal vibrations at one end of the waveguide and eliminating reflections at the opposite end by a passive damper. Considering the Poisson's effect, the stator surface points move on elliptic trajectories and the slider is driven forward by friction. In contrast to many other flexural traveling wave linear ultrasonic motors, the driving direction of the proposed motor is identical to the wave propagation direction. The feasibility of the motor concept is demonstrated theoretically and experimentally. First, the design and operation principle of the motor are presented in detail. Then, the stator is modeled utilizing the transfer matrix method and verified by experimental studies. In addition, experimental parameter studies are carried out to identify the motor characteristics. Finally, the performance of the proposed motor is investigated. Overall, the results indicate very dynamic drive characteristics. The motor prototype achieves a maximum mean velocity of 115 mm s-1 and a maximum load of 0.25 N. Thereby, the start-up and shutdown times from the maximum speed are lower than 5 ms.

Keywords

    linear ultrasonic motor, longitudinal traveling waves, stator modeling, transfer matrix method, experimental validation

ASJC Scopus subject areas

Cite this

A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept. / Wang, Liang; Wielert, Tim; Twiefel, Jens et al.
In: Smart materials and structures, Vol. 26, No. 8, 085013, 08.2017.

Research output: Contribution to journalArticleResearchpeer review

Wang L, Wielert T, Twiefel J, Jin J, Wallaschek J. A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept. Smart materials and structures. 2017 Aug;26(8):085013. doi: 10.1088/1361-665X/aa78d2
Wang, Liang ; Wielert, Tim ; Twiefel, Jens et al. / A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept. In: Smart materials and structures. 2017 ; Vol. 26, No. 8.
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title = "A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept",
abstract = "This paper proposes a non-resonant linear ultrasonic motor utilizing longitudinal traveling waves. The longitudinal traveling waves in the rod type stator are generated by inducing longitudinal vibrations at one end of the waveguide and eliminating reflections at the opposite end by a passive damper. Considering the Poisson's effect, the stator surface points move on elliptic trajectories and the slider is driven forward by friction. In contrast to many other flexural traveling wave linear ultrasonic motors, the driving direction of the proposed motor is identical to the wave propagation direction. The feasibility of the motor concept is demonstrated theoretically and experimentally. First, the design and operation principle of the motor are presented in detail. Then, the stator is modeled utilizing the transfer matrix method and verified by experimental studies. In addition, experimental parameter studies are carried out to identify the motor characteristics. Finally, the performance of the proposed motor is investigated. Overall, the results indicate very dynamic drive characteristics. The motor prototype achieves a maximum mean velocity of 115 mm s-1 and a maximum load of 0.25 N. Thereby, the start-up and shutdown times from the maximum speed are lower than 5 ms.",
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T1 - A rod type linear ultrasonic motor utilizing longitudinal traveling waves: proof of concept

AU - Wang, Liang

AU - Wielert, Tim

AU - Twiefel, Jens

AU - Jin, Jiamei

AU - Wallaschek, Joerg

N1 - Publisher Copyright: © 2017 IOP Publishing Ltd.

PY - 2017/8

Y1 - 2017/8

N2 - This paper proposes a non-resonant linear ultrasonic motor utilizing longitudinal traveling waves. The longitudinal traveling waves in the rod type stator are generated by inducing longitudinal vibrations at one end of the waveguide and eliminating reflections at the opposite end by a passive damper. Considering the Poisson's effect, the stator surface points move on elliptic trajectories and the slider is driven forward by friction. In contrast to many other flexural traveling wave linear ultrasonic motors, the driving direction of the proposed motor is identical to the wave propagation direction. The feasibility of the motor concept is demonstrated theoretically and experimentally. First, the design and operation principle of the motor are presented in detail. Then, the stator is modeled utilizing the transfer matrix method and verified by experimental studies. In addition, experimental parameter studies are carried out to identify the motor characteristics. Finally, the performance of the proposed motor is investigated. Overall, the results indicate very dynamic drive characteristics. The motor prototype achieves a maximum mean velocity of 115 mm s-1 and a maximum load of 0.25 N. Thereby, the start-up and shutdown times from the maximum speed are lower than 5 ms.

AB - This paper proposes a non-resonant linear ultrasonic motor utilizing longitudinal traveling waves. The longitudinal traveling waves in the rod type stator are generated by inducing longitudinal vibrations at one end of the waveguide and eliminating reflections at the opposite end by a passive damper. Considering the Poisson's effect, the stator surface points move on elliptic trajectories and the slider is driven forward by friction. In contrast to many other flexural traveling wave linear ultrasonic motors, the driving direction of the proposed motor is identical to the wave propagation direction. The feasibility of the motor concept is demonstrated theoretically and experimentally. First, the design and operation principle of the motor are presented in detail. Then, the stator is modeled utilizing the transfer matrix method and verified by experimental studies. In addition, experimental parameter studies are carried out to identify the motor characteristics. Finally, the performance of the proposed motor is investigated. Overall, the results indicate very dynamic drive characteristics. The motor prototype achieves a maximum mean velocity of 115 mm s-1 and a maximum load of 0.25 N. Thereby, the start-up and shutdown times from the maximum speed are lower than 5 ms.

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KW - longitudinal traveling waves

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