2150热连轧机机架强度刚度和振动分析

针对2150热连轧机组第3架轧机轧制过程中发生的振动问题,对机架的强度和刚度进行了计算,推导了轧机机架第一阶固有频率的计算公式,计算结果为10.978 Hz,对快速计算机架固有频率具有重要意义;并且应用有限元法对机架进行动力学特性分析,计算结果表明,两种方法所得的固有频率比较吻合,从而为轧机机架的设计提供了依据。

Analysis of ruggedness rigidity and vibration for 2150 hot tandem mill frame

Aimed at the vibration problem which occurs in the third frame of the 2150 hot tandem mill in the rolling process,the computation to the ruggedness and the rigidity of the frame was carried on,then the computation formula of the primary natural frequency of the frame was deduced,which has an important meaning to the rapid calculation of the frame natural frequency;the computation result is 10.978 Hz.And the dynamics characteristic of the frame was analyzed by using FEM.The computation results indicate that the natural frequencies obtained from two methods are very anastomotic,which has provided reference for the rolling mill frame.