|
FIZIKA A 16 (2007) 4 , 167-178
 
FERROFLUID-LUBRICATED SECANT-SHAPED SQUEEZE-FILM BEARING WITH ANISOTROPIC
PERMEABILITY, SLIP-VELOCITY, MATERIAL PARAMETER AND ROTATIONAL INERTIA
RAJESH C. SHAHa and M. V. BHATb
aDepartment of Mathematics, Government Engineering College,
Polytechnic Campus, Sector - 26, Gandhinagar - 382 044, Gujarat State, India
bE-202, Riddhi Complex, Near Jodhpur Village, Ahmedabad - 380 015,
Gujarat State, India
Received 19 September 2006; Accepted 5 December 2007
Online 8 February 2008
We present a theoretical study of the effect of anisotropic permeability and
slip velocity on the action of the squeeze film formed when a secant-shaped
circular upper plate with a porous facing approaches an impermeable and flat
circular lower plate, considering also rotation of the plates. Expressions for
the dimensionless pressure, load capacity and the response time are given by a
differential equation. Computed values of dimensionless load capacity and
response time are displayed in tabular form. It has been found that they
decrease with increasing values of radial permeability, slip parameter and
rotational inertia. However, they increase with increasing values of axial
permeability and material constant of the Jenkins model. They have also been
found to increase when the speed of the lower plate is higher than that of the
upper plate.
PACS numbers: 81.40.Pq, 46.55.+d
UDC 531.44, 532.516
Keywords: ferrofluid, lubrication, squeeze film, anisotropic permeability, slip,
rotational inertia, Jenkins model, Neuringer-Rosensweig model
|
