Publication detail

Deformation of Rough Surfaces in Point EHL Contacts

Ivan Krupka, Martin Hartl, Kenji Matsuda, Hiroshi Nishikawa, Jing Wang, Feng Guo, Peiran Yang & Motohiro Kaneta

English title

Deformation of Rough Surfaces in Point EHL Contacts

Type

journal article in Web of Science

Language

en

Original abstract

The film thickness profile obtained by the optical interferometry technique merely represents a separation between contact surfaces and does not give the surface shape of contact surfaces. It has been pointed out that the actual shape of the surface roughness in rolling and/or sliding EHL contacts must be evaluated by separately obtaining the surface shape of contact bodies. The degree of the amplitude reduction in actual roughness depends on the mechanical properties of both contacting surfaces. That is, the deformation of roughness and the pressure at which roughness locates are controlled by the interrelationship between the rough surface and the mating surface caused by rolling and/or sliding motion. The method of finding surface profiles of both bodies separately and also the pressure distribution from the interferogram obtained by the optical interferometry technique is proposed in Appendix.

English abstract

The film thickness profile obtained by the optical interferometry technique merely represents a separation between contact surfaces and does not give the surface shape of contact surfaces. It has been pointed out that the actual shape of the surface roughness in rolling and/or sliding EHL contacts must be evaluated by separately obtaining the surface shape of contact bodies. The degree of the amplitude reduction in actual roughness depends on the mechanical properties of both contacting surfaces. That is, the deformation of roughness and the pressure at which roughness locates are controlled by the interrelationship between the rough surface and the mating surface caused by rolling and/or sliding motion. The method of finding surface profiles of both bodies separately and also the pressure distribution from the interferogram obtained by the optical interferometry technique is proposed in Appendix.

Keywords in English

Surface roughness; Deformation; Optical interferometry; Elastohydrodynamics

Released

01.06.2019

Publisher

SPRINGER/PLENUM PUBLISHERS

Location

NEW YORK

ISSN

1023-8883

Volume

67

Number

2

Pages from–to

1–16

Pages count

16

BIBTEX


@article{BUT163328,
  author="Ivan {Křupka} and Motohiro {Kaneta} and Kenji {Matsuda} and Martin {Hartl},
  title="Deformation of Rough Surfaces in Point EHL Contacts",
  year="2019",
  volume="67",
  number="2",
  month="June",
  pages="1--16",
  publisher="SPRINGER/PLENUM PUBLISHERS",
  address="NEW YORK",
  issn="1023-8883"
}