Creep Life of Babbitt ZChSnSb11-6 of OilFilm Bearing

Abstract

Abstract:

Abstract： Aimed at the creep damage problem of bushing Babbitt ZChSnSb11-6 of oil-film bearing in operation, the creep test equipment was designed, and a creep test of ZChSnSb11-6 was conducted. Two kinds of steady-state creep constitutive equations based on Dom theory and the constant speed theory were respectively established by using the creep test data. The experiment indicates that the steadystate creep constitutive equation based on Dom theory has a higher calculation accuracy, with a relative error of 1.52%. Besides, a creep life calculation model of ZChSnSb11-6 of oil-film bearing based on steady-state creep constitutive equation of ZChSnSb11-6 was established. The service life of alloy under any working condition could be predicted. Moreover, the resistivity and hardness of alloy after creep were measured, and their relationship was analyzed. Furthermore, the creep life evaluation model of ZChSnSb11-6 based on the resistivity was established, and a method measuring the resistivity of alloy to evaluate the service life of bearing was proposed.

Key words: oil-film bearing, Babbitt, creep test, creep life, evaluation

CLC Number:

TG 113.25

WANG Jianmei,XUE Yawen,CAI Min. Creep Life of Babbitt ZChSnSb11-6 of OilFilm Bearing[J]. Journal of Shanghai Jiaotong University, 2015, 49(01): 62-66.

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