Detail publikace

Pressure Increase in Elliptical Impact Elastohydrodynamic Lubrication Contacts With Longitudinal Asperities

KANETA, M. KŘUPKA, I. HARTL, M.

Originální název

Pressure Increase in Elliptical Impact Elastohydrodynamic Lubrication Contacts With Longitudinal Asperities

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The phenomena that occur when an elliptical steel body impacts a stationary steel plate with surface asperities are discussed through isothermal Newtonian numerical analysis using sinusoidal roughness. The ridges of the surface asperities produce large local pressures, especially at a large ellipticity ratio, when the surfaces are approaching each other under the applied load. The values of the local pressures are larger when the ridges are along the major axis than when the ridges are along the minor axis. Furthermore, as the loading speed increases, the pressure increases. As a result, the microgrooves are produced in the ridges and the horseshoe-shaped constrictions are formed at the ridges located around the contact edge.

Klíčová slova

elastohydrodynamics; impact load; microgroove; surface asperity; loading speed

Autoři

KANETA, M.; KŘUPKA, I.; HARTL, M.

Rok RIV

2012

Vydáno

21. 12. 2012

Nakladatel

ASME

Místo

USA

ISSN

0742-4787

Periodikum

ASME Transaction, Journal of Tribology

Ročník

135

Číslo

1

Stát

Spojené státy americké

Strany od

1

Strany do

6

Strany počet

6

BibTex

@article{BUT96705,
  author="Motohiro {Kaneta} and Ivan {Křupka} and Martin {Hartl}",
  title="Pressure Increase in Elliptical Impact Elastohydrodynamic Lubrication Contacts With Longitudinal Asperities",
  journal="ASME Transaction, Journal of Tribology",
  year="2012",
  volume="135",
  number="1",
  pages="1--6",
  issn="0742-4787"
}