Effective shear modulus of an oil film under elastohydrodynamic conditions

• Autorzy: Muraki M. , Kawabata R.
• Konferencja: Third International Conference on Engineering Rheology, ICER 2005
• Języki publikacji: EN

Abstrakty

EN

Traction in transverse direction based on spin and side-slip was determined with a disk-on-roller machine. The measurements for di-octyl phthalate showed that the traction based on only spin was due to the elasticity of an EHL oil film from the viewpoint of rheological behaviour. Then, the influence of some parameters on the traction was examined for the synthetic naphthenes. The traction increased with increasing contact pressure and decreasing temperature. On the other hand, decrease in the radius of curvature of transverse direction increased traction because of increase in the elastic strain through decrease in the film thickness. Effective shear modulus derived from the traction measurements was an order of 0.1GPa at 30oC for the synthetic naphthenes, which slightly decreased as the contact pressure was increased.

Słowa kluczowe

EN

tribology; traction; spin; side slip; EHD; viscoelasticity; synthetic naphthene

PL

trybologia; trakcja; lepkosprężystość

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2005
• Tom: Vol. 10, no spec
• Strony: 263--268
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Muraki M.

• Shonan Institute of Technology, 1-1-25, Tsujido Nishikaigan Fujisawa, Kanagawa, 251-8511, JAPAN

autor

Kawabata R.

• Shonan Institute of Technology, 1-1-25, Tsujido Nishikaigan Fujisawa, Kanagawa, 251-8511, JAPAN

Bibliografia

• [1] Evans C.R., Johnson K.L. (1986): Regimes of traction in elastohydrodynamic lubrication. – Proc. Inst. Mech, Eng., vol. 200, pp.313-324.
• [2] Hirst W., Moore A.J. (1979): Elastohydrodynamic lubrication at high pressures II> Non-Newtonian behaviour. – Proc. R. Soc. Lond., Ser. A., vol. 365, pp. 537-565.
• [3] Johnson K.L., Roberts A.D. (1974): Observations of vistoelastic behaviour of an elastohydrodynamic lubricant film. – Proc. R. Soc.Lond., ser. A., vol. 337, pp. 217-242.
• [4] Pressure-Viscosity Report, ASME (1953).