Details
| Original language | English |
|---|---|
| Article number | 085013 |
| Journal | Smart materials and structures |
| Volume | 26 |
| Issue number | 8 |
| Publication status | Published - 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
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Computer Science(all)
- Signal Processing
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Electrical and Electronic Engineering
- Engineering(all)
- Civil and Structural Engineering
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In: Smart materials and structures, Vol. 26, No. 8, 085013, 08.2017.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
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.
KW - linear ultrasonic motor
KW - longitudinal traveling waves
KW - stator modeling
KW - transfer matrix method
KW - experimental validation
UR - http://www.scopus.com/inward/record.url?scp=85037541922&partnerID=8YFLogxK
U2 - 10.1088/1361-665X/aa78d2
DO - 10.1088/1361-665X/aa78d2
M3 - Article
VL - 26
JO - Smart materials and structures
JF - Smart materials and structures
SN - 0964-1726
IS - 8
M1 - 085013
ER -