| Static characteristics of tri-taper journal bearing (2006) | |||||||||
Abstract | |||||||||
| The static characteristics of a tri-taper journal bearing are studied. The geometry is similar to that for a tri-lobe journal bearing and is akin to three-tapered land composite thrust bearings arranged around a bearing circle. There are three lubricant supply grooves equally spaced around the bearing periphery. Each of the three sections consists of equal lengths of the bearing base circle and a section offset from the base circle such that it merges smoothly with the base circle and provides a predetermined depth at or near to the lubricant supply groove. Performance characteristics such as load carrying capacity, power loss and lubricant flow rate of the tri-taper journal bearing are obtained by the solution of the Reynolds equation using a finite difference method and accommodating Jacobsons -Floberg-Olsson boundary conditions for iso-viscous and laminar flow. The lubricant film profile is determined by superimposing the effect of the ramp on the conventional expression for the film thickness in a journal bearing. Typical characteristics obtained are presented which will be useful to the designer. | |||||||||
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