制動條件下平均摩擦系數(shù)計算方法的比較-資料下載頁
2025-08-11 12:05本頁面
【正文】 tinuous Extrusion，Ministry of Education，Dalian Jiaotong University，Dalian 116028，China)Abstract: Focusing on the patterns of friction pairs of alloy disk and cooperbased friction materials，braking experiments under different working conditions were conducted on an inertia test bench under the conditions of 46 kgm2 rotational moment of inertia． The average friction coefficient is calculated by using UIC and Chinese standards． The results indicates that with the increase of initial braking speed，the difference of the two meth ods to calculate the average friction coefficient is increased gradually，due to the lower initial brake speed and the narrower distribution of friction coefficient on braking distance． The difference between average friction force and instantaneous friction force is not obvious． The results of the two methods are concentrated in the middle of the brake with very small difference． When the initial braking speed is high，the friction coefficient is concentrated at the initial braking，the results of UIC standards tend to the initial braking and friction force at the initial braking is significantly lower than the average one． The results of Chinese standards deviation to the initial braking，the difference of two calculation results is more obvious．Key words: friction。 brake。 average friction coefficient
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