2024-03-29T15:02:22Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001547
2023-04-05T00:50:37Z
320:321:322
Active friction control in lubrication condition using novel metal morphing surface
Murashima, Motoyuki
Imaizumi, Yusuke
Murase, Ryo
Umehara, Noritsugu
Tokoroyama, Takayuki
Saito, Toshiyuki
Takeshima, Masayuki
We propose a new active friction control method with a morphing surface using a unique diaphragm structure consisting of 60-μm thin metal film. In poor lubrication, the friction coefficient dropped significantly from 0.19 to 0.03 when the surface changed from concave to convex. Optical in situ observations revealed that the oil collected at the convexity due to capillary force and meniscus. In addition, results of electric characteristic measurements revealed that the solid contact area decreased with the convexity. In conclusion, the reduction of solid contact due to improvement of lubrication condition was likely the friction reduction mechanism of the convex shape. Because active friction control realizes minimal friction loss and multifunctionality, the morphing surface can contribute to future machine development.
journal article
Elsevier
2021-04
application/pdf
Tribology International
156
106827
0301679X
https://nagoya.repo.nii.ac.jp/record/2001547/files/manuscriptR7_repository.pdf
eng
https://doi.org/10.1016/j.triboint.2020.106827
© 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/