Transversely rough slider bearings with squeeze film formed by a magnetic fluid

• Autorzy: Deheri G.M. , Andharia P.I. , Patel R.M.
• Języki publikacji: EN

Abstrakty

EN

In this article it has been sought to study the effect of transverse roughness on the behaviour of slider bearings with squeeze film formed by a magnetic fluid. The roughness of the bearing surface is modelled by a stochastic random variable with non zero mean, variance and skewness. The associated Reynolds' equation is stochastically averaged with respect to the random roughness parameter. Results for bearing performance characteristics such as load carrying capacity, center of pressure, frictional force and coefficient of friction for different values of mean, standard deviation and measure of symmetry are numerically computed. In order to decipher the quantitative effect of roughness on the performance characteristics four different shapes namely; plane slider, exponential slider, hyperbolic slider and secant slider for the lubricant film are considered. The results are presented graphically. It is noticed that the bearing suffers on account of transverse surface roughness. The results show that the use of a magnetic fluid as lubricant increases the load carrying capacity, decreases the coefficient of friction and affects the center of pressure marginally. It is further observed that the effect of magnetization on the plane and secant shaped bearings is nominal while the effect on exponential and hyperbolic slider bearing is significant. In addition it is easily seen that by increasing the strength of the magnetic field the adverse impact on the bearing due to roughness can be minimized.

Słowa kluczowe

EN

slider bearing; squeeze film; rough surfaces; magnetic fluid

PL

reologia; łożysko; ciecz magnetyczna

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2005
• Tom: Vol. 10, no 1
• Strony: 53--76
• Opis fizyczny: Bibliogr. 29 poz., wykr.

Twórcy

autor

Deheri G.M.

• Department of Mathematics, Sardar Patel University Vallabh Vidyanagar 388 120, Gujarat State, INDIA

autor

Andharia P.I.

• Bhavnagar University, S. S. Computer Center Bhavnagar 364 002, Gujarat State, INDIA

autor

Patel R.M.

• Department of Mathematics, Gujarat Arts and Science College Ahmedabad 380 006 Gujarat State, INDIA

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