Can lubricant enhance the torque of ultrasonic motors? An experimental investigation
Qiu, Wei LU
; Mizuno, Yosuke
; Tabaru, Marie
and Nakamura, Kentaro
(2014)
In Applied Physics Letters
105(22).
- Abstract
- Lubrication has been proven to be an effective approach to drastically improve the efficiency of ultrasonic motors without losing the output torque. This phenomenon is attributed to the effective modulation of the friction force by lubricant, according to the theory described in the Stribeck curve. Previous findings even show a potential to increase the motor output torque with lubrication. Here, the torque enhancement of ultrasonic motors using lubricant is extensively studied in hybrid transducer-type ultrasonic motors (HTUSMs) with a size of 25 mm in diameter. The lubricated HTUSMs could withstand static preload as high as 267 N and maximum torque as large as 1.01 N m was obtained with lubrication, which were 3.5 times and 2.6 times... (More)
- Lubrication has been proven to be an effective approach to drastically improve the efficiency of ultrasonic motors without losing the output torque. This phenomenon is attributed to the effective modulation of the friction force by lubricant, according to the theory described in the Stribeck curve. Previous findings even show a potential to increase the motor output torque with lubrication. Here, the torque enhancement of ultrasonic motors using lubricant is extensively studied in hybrid transducer-type ultrasonic motors (HTUSMs) with a size of 25 mm in diameter. The lubricated HTUSMs could withstand static preload as high as 267 N and maximum torque as large as 1.01 N m was obtained with lubrication, which were 3.5 times and 2.6 times higher than those in dry condition, respectively. This result clearly reveals that lubrication can enable ultrasonic motors to be operated under much higher static preload and hence significantly improve the motor output torque, instead of only reducing the friction force. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b92457d7-31d3-4c0d-8841-3b0968c23375
- author
- Qiu, Wei
LU
; Mizuno, Yosuke
; Tabaru, Marie
and Nakamura, Kentaro
- publishing date
- 2014-12-02
- type
- Contribution to journal
- publication status
- published
- in
- Applied Physics Letters
- volume
- 105
- issue
- 22
- article number
- 224102
- pages
- 4 pages
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:84919363230
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4903238
- language
- English
- LU publication?
- no
- id
- b92457d7-31d3-4c0d-8841-3b0968c23375
- date added to LUP
- 2022-08-11 00:06:32
- date last changed
- 2025-10-14 13:13:33
@article{b92457d7-31d3-4c0d-8841-3b0968c23375,
abstract = {{Lubrication has been proven to be an effective approach to drastically improve the efficiency of ultrasonic motors without losing the output torque. This phenomenon is attributed to the effective modulation of the friction force by lubricant, according to the theory described in the Stribeck curve. Previous findings even show a potential to increase the motor output torque with lubrication. Here, the torque enhancement of ultrasonic motors using lubricant is extensively studied in hybrid transducer-type ultrasonic motors (HTUSMs) with a size of 25 mm in diameter. The lubricated HTUSMs could withstand static preload as high as 267 N and maximum torque as large as 1.01 N m was obtained with lubrication, which were 3.5 times and 2.6 times higher than those in dry condition, respectively. This result clearly reveals that lubrication can enable ultrasonic motors to be operated under much higher static preload and hence significantly improve the motor output torque, instead of only reducing the friction force.}},
author = {{Qiu, Wei and Mizuno, Yosuke and Tabaru, Marie and Nakamura, Kentaro}},
issn = {{0003-6951}},
language = {{eng}},
month = {{12}},
number = {{22}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Applied Physics Letters}},
title = {{Can lubricant enhance the torque of ultrasonic motors? An experimental investigation}},
url = {{http://dx.doi.org/10.1063/1.4903238}},
doi = {{10.1063/1.4903238}},
volume = {{105}},
year = {{2014}},
}