Detail publikačního výsledku

Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts

KŘUPKA, I., HARTL, M., LIŠKA, M.

Originální název

Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts

Anglický název

Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Recent numerical results have indicated that the relationship between the film thickness and the speed may not always follow the simple power law, especially under severe conditions. This paper is aimed at obtaining experimental results at high contact stresses and low speeds to study the thin film behavior. Ultra-thin lubricant films were observed at maximum Hertz pressures of 0.52, 1.01 and 1.54 GPa by using an optical test rig. Central and minimum film thickness values were obtained with thin film colorimetric interferometry from chromatic interferograms. The non-linear behavior of both central and minimum film thicknesses in log-log coordinates was observed as rolling speed and thereby film thickness decreased. This tendency became more obvious at higher contact pressures.

Anglický abstrakt

Recent numerical results have indicated that the relationship between the film thickness and the speed may not always follow the simple power law, especially under severe conditions. This paper is aimed at obtaining experimental results at high contact stresses and low speeds to study the thin film behavior. Ultra-thin lubricant films were observed at maximum Hertz pressures of 0.52, 1.01 and 1.54 GPa by using an optical test rig. Central and minimum film thickness values were obtained with thin film colorimetric interferometry from chromatic interferograms. The non-linear behavior of both central and minimum film thicknesses in log-log coordinates was observed as rolling speed and thereby film thickness decreased. This tendency became more obvious at higher contact pressures.

Klíčová slova v angličtině

lubrication, high pressure, film thickness

Autoři

KŘUPKA, I., HARTL, M., LIŠKA, M.

Vydáno

01.07.2005

ISSN

0742-4787

Periodikum

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME

Svazek

127

Číslo

4

Stát

Spojené státy americké

Strany od

890

Strany počet

3

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT42820,
  author="Ivan {Křupka} and Martin {Hartl} and Miroslav {Liška}",
  title="Influence of Contact Pressure on Central and Minimum Film Thickness Within Ultrathin Film Lubricated Contacts",
  journal="JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME",
  year="2005",
  volume="127",
  number="4",
  pages="3",
  issn="0742-4787"
}