【摘要】 提出了一种预测四辊轧机机架疲劳寿命的方法。通过采用三维有限元(FEM)和子模型技术对某轧钢厂一台四辊轧机进行了强度分析;在现场动态测试基础上,运用Miner公式并结合修正后的p-s-N曲线及实际载荷谱,计算得到了该轧机机架的疲劳寿命。更多还原

【Abstract】 This paper presents a new method to predict the fatigue life of the Rolled Mill Stand.The strength of a four-high mill stand in a mill plant is calculated through mixing FEM and sub-model method.Then,On the basis of the dynamic-static stress test at field,the fatigue life of the mill stand can be attained by integrating with the modified p-s-N curve,the Miner rule and the actual load spectrum.更多还原