Elastohydrodynamic Film Thickness Model for Heavily Loaded Contacts
1974 ◽
Vol 96
(3)
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pp. 472-479
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An empirical elastohydrodynamic (EHD) film thickness formula for predicting the minimum film thickness occurring within heavily loaded contacts (maximum Hertz stresses above 1.04 × 109 N/m2 (150,000 psi)) was developed. The formula was based upon X-ray film thickness measurements made with synthetic paraffinic, fluorocarbon, Type II ester and polyphenyl ether fluids covering a wide range of test conditions. Comparisons were made between predictions from an isothermal EHD theory and the test data. The deduced relationship was found to adequately reflect the high-load dependence exhibited by the measured data. The effects of contact geometry, material and lubricant properties on the form of the empirical model are also discussed.
2009 ◽
Vol 223
(8)
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pp. 1143-1163
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Keyword(s):
2003 ◽
Vol 217
(7)
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pp. 537-550
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Keyword(s):
1995 ◽
Vol 209
(4)
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pp. 225-234
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1979 ◽
Vol 101
(2)
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pp. 231-237
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