Interia effect in the squeeze film of a couple-stress fluid in biological bearings

• Autorzy: Walicki E. , Walicka A.
• Języki publikacji: EN

Abstrakty

EN

Couple-stresses affect lubrication problem when additives are used or lubricant contains long-chain molecules. Such couple-stresses may have a considerable effect on the behaviour of bearings in practice. The influence of couple-stress and lubricant inertia on mechanical parameters of the curvilinear thrust bearing with squeeze film is considered. The simulation of the squeeze-film behaviour of a human joint modelled as a spherical bearing is discusses as an example. It is shown that the influence of couple-stresses on the characteristics of the discussed bearing is considerable but the inertia effect is significant and not negligible. Both the effects - couple-stress and inertia - provide an enhancement in the pressure distribution and in the load-carrying capacity.

Słowa kluczowe

EN

couple stress fluids; inertia effect; synovial joints; spherical bearing; squeeze film characteristics

PL

hydromechanika

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 1999
• Tom: Vol. 4, no 2
• Strony: 363--373
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Walicki E.

autor

Walicka A.

• Technical University of Zielona Góra, Dept. of Mechanics, ul. Szafrana 2, 65-016 Zielona Góra, POLAND