An analytical study of the compressibility effects on the characteristics of two-dimensional slider bearings is made. By the variational method, it is shown that, for a given bearing length, no optimal film shape of the bearing can be found to yield a maximum total load. Analysis of the numerical results carried out for stepped films with a compressible lubricant under isothermal compression or expansion indicates that this anomaly is due to the nonlinear nature of the compressible problem. By considering a modified variational problem, it is further shown that stepped-film bearings with isothermal lubricant still yield the maximum total load for a given mass flow rate passing through the bearings, but the exact shape of the optimal stepped film is found to depend on the value of the maximum pressure.
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On the Compressibility Effects of the Lubricant for Two-Dimensional Slider Bearings
K. T. Yen
Department of Aeronautical Engineering, Rensselaer Polytechnic Institute, Troy, N. Y.
Yen, K. T. (December 1, 1960). "On the Compressibility Effects of the Lubricant for Two-Dimensional Slider Bearings." ASME. J. Appl. Mech. December 1960; 27(4): 609–612. https://doi.org/10.1115/1.3644068
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