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مکانیک::
محیطی
In a well-aligned journal bearing Tmax usually occurs on the axial centerline, and in thrust bearings it is found at the outer radius where the linear speed and the circumferential path of the lubricant are at a peak.
where and z are the circumferential and axial coordinates, G and Gz are the turbulence coefficients in the two directions and are functions of the Reynolds number, h is the film thickness and is a function of and z, R is the journal radius, is the lubricant viscosity, and p is the pressure.
The film thickness in a simple land bearing with a constant circumferential taper is inde- pendent of the radius r, and can be expressed in cylindrical coordinates by
Couette flow and the film thickness relying on the radial and circumferential directions.
providing tapers in both circumferential and radial directions.
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