Ultrasonic motor performance influenced by lubricant properties
(2018) In Sensors and Actuators, A: Physical 282. p.183-191- Abstract
- Functional lubrication has been shown to be a promising method for improving the performance ofultrasonic motors (USMs). However, the complex lubrication mechanisms have not been studied and the effect of lubricant properties on motor performance remains unknown. In this paper, both low-traction fluids and high-traction fluids with a wide viscosity range are applied, and the lubricating effects are investigated in hybrid transducer-type ultrasonic motors. The results clearly show that high-traction fluids have significant superiority to low-traction fluids in terms of motor efficiency and reduction of friction loss at the entire range of the applied preload. A high friction coefficient in boundary lubrication regime and efficient... (More)
- Functional lubrication has been shown to be a promising method for improving the performance ofultrasonic motors (USMs). However, the complex lubrication mechanisms have not been studied and the effect of lubricant properties on motor performance remains unknown. In this paper, both low-traction fluids and high-traction fluids with a wide viscosity range are applied, and the lubricating effects are investigated in hybrid transducer-type ultrasonic motors. The results clearly show that high-traction fluids have significant superiority to low-traction fluids in terms of motor efficiency and reduction of friction loss at the entire range of the applied preload. A high friction coefficient in boundary lubrication regime and efficient modulation in friction are confirmed to be essential for achieving high-performance lubricated USMs. It is also found that the motor performance is independent of lubricant viscosities in the tested range, irrespective of lubricant types. The reasons for the distinct lubricating effects with the two types of lubricants are analyzed in detail, which leads to the criteria of selecting lubricants and more understanding in the lubrication mechanisms in USMs. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/55d7774d-be2a-4f5f-800f-97f19603fefb
- author
- Qiu, Wei LU ; Mizuno, Yosuke ; Adachi, Koshi and Nakamura, Kentaro
- publishing date
- 2018-09-20
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ultrasonic motors, Efficiency, Torque, Lubricant, Viscosity, Lubrication mechanisms
- in
- Sensors and Actuators, A: Physical
- volume
- 282
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85053517983
- ISSN
- 0924-4247
- DOI
- 10.1016/j.sna.2018.09.022
- language
- English
- LU publication?
- no
- id
- 55d7774d-be2a-4f5f-800f-97f19603fefb
- date added to LUP
- 2022-08-10 23:29:24
- date last changed
- 2022-08-18 13:55:39
@article{55d7774d-be2a-4f5f-800f-97f19603fefb, abstract = {{Functional lubrication has been shown to be a promising method for improving the performance ofultrasonic motors (USMs). However, the complex lubrication mechanisms have not been studied and the effect of lubricant properties on motor performance remains unknown. In this paper, both low-traction fluids and high-traction fluids with a wide viscosity range are applied, and the lubricating effects are investigated in hybrid transducer-type ultrasonic motors. The results clearly show that high-traction fluids have significant superiority to low-traction fluids in terms of motor efficiency and reduction of friction loss at the entire range of the applied preload. A high friction coefficient in boundary lubrication regime and efficient modulation in friction are confirmed to be essential for achieving high-performance lubricated USMs. It is also found that the motor performance is independent of lubricant viscosities in the tested range, irrespective of lubricant types. The reasons for the distinct lubricating effects with the two types of lubricants are analyzed in detail, which leads to the criteria of selecting lubricants and more understanding in the lubrication mechanisms in USMs.}}, author = {{Qiu, Wei and Mizuno, Yosuke and Adachi, Koshi and Nakamura, Kentaro}}, issn = {{0924-4247}}, keywords = {{Ultrasonic motors; Efficiency; Torque; Lubricant; Viscosity; Lubrication mechanisms}}, language = {{eng}}, month = {{09}}, pages = {{183--191}}, publisher = {{Elsevier}}, series = {{Sensors and Actuators, A: Physical}}, title = {{Ultrasonic motor performance influenced by lubricant properties}}, url = {{http://dx.doi.org/10.1016/j.sna.2018.09.022}}, doi = {{10.1016/j.sna.2018.09.022}}, volume = {{282}}, year = {{2018}}, }