2円筒試験による潤滑油の限界せん断応力の評価

概要

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A method of determining the parameters of the rheological properties which express the model of the limiting shear stress of lubricants is proposed. The relations betwen the traction coefficients of the roller tests and the mean film temperature rises of lubricants are calculated. The maximum traction coefficients are revised to those of the isothermal condition by the traction coefficient-temperature relations and analyzed by using an approximate formula which estimates a maximum traction coefficient based on the limiting shear stress. Zero pressure value of limiting shear stress τ_0 and slope of the limiting shear stress-pressure relation m are presented for two traction fluids Santotrac50 and Daphne 7074 at temperature 313 K. Maximum traction coefficient and limiting shear stress at high temperature are predicted by using the traction coefficient-temperature relations.
一般社団法人日本機械学会の論文
1992-02-25