基于当目标函数及相关运动学制约已经制定时的最大疲劳寿命。
Based on maximum fatigue life as objective function and associated kinematic constraints have been formulated.
疲劳寿命与最大应力近似呈对数线性关系。
The fatigue life was linear to the logarithmic maximum stress.
计算发现，夹杂物周围的最大剪切应力是不含夹杂物时的1.2～1.7倍，这对钢轨疲劳寿命造成有害影响。
The calculation indicates that the maximum shear stress around inclusion is 1.2-1.7 times of that without inclusion, which has a harmful effect on the fatigue endurance of rail.
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