超洁净轴承钢中夹杂物与滚动接触疲劳寿命的关系

孙飞龙¹, 耿克², 俞峰³, 罗海文¹(

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Relationship of Inclusions and Rolling Contact Fatigue Life for Ultra-Clean Bearing Steel

SUN Feilong¹, GENG Ke², YU Feng³, LUO Haiwen¹(

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图4. 广义Pareto分布(GPD)法阈值u的确定

Fig.4. The mean excess plots for estimating u in the generalized Pareto distribution (GPD) method (u—threshold, u₀—critical threshold, $σ$ —scale parameter, $ξ$ —shape parameter)
(a) No.1 steel (b) No.2 steel (c) No.3 steel