Tilt stiffness and damping of externally pressurized porous gas journal bearings |
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Authors: | N.S. Rao |
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Affiliation: | Department of Mechanical Engineering, Indian Institute of Technology, KharagpurIndia |
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Abstract: | The dynamic behaviour of an externally pressurized porous gas journal bearing is analysed by assuming one-dimensional flow through the porous bushing. A periodic disturbance (angular displacement) about the transverse axis is imposed on the bearing and the resulting dynamic pressure distribution is determined by small perturbations of the Reynolds equation. A finite difference method is used to determine the dynamic pressure. Design data for tilt stiffness and damping as a function of squeeze number, feeding parameter, supply pressure and porosity parameter are calculated numerically using a digital computer and are presented in tables and figures. |
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