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首页> 外文期刊>ISIJ international >Experimental and Numerical Investigation of the Vibration Characteristics in a Hot Plate Rolling Mill Based on Multibody Dynamics
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Experimental and Numerical Investigation of the Vibration Characteristics in a Hot Plate Rolling Mill Based on Multibody Dynamics

机译：基于多体动力学的热板轧机振动特性的实验性和数值研究

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Analysis of chatter vibration characteristics is an important factor that determines the quality of the slab in a rolling process. A numerical model is proposed to investigate the vibration characteristics. A hot plate rolling mill that includes the driving system is modeled by multibody dynamics to investigate the cause and characteristics of the chatter vibration. Since the spindle of a thick plate hot rolling mill is inclined within 2 degrees depending on the connection part, it is necessary to take into account the elastic effect of the spindle deflection. Therefore, the rigid body model of the previously studied method and the flexible body model that can consider the elastic effect were compared with the experimental model and the accuracy was verified. The chatter frequency was analyzed according to the rolling process and compared with the theoretical calculation results to investigate what occurred during the rolling process. The chatter frequency was compared with the natural vibration frequency of the spindle connected to the work roll and could be expected to be directly related to the bending vibration.
机译：抗振动特性的分析是确定轧制过程中板坯质量的重要因素。提出了一种数值模型来研究振动特性。包括驱动系统的热板轧机由多体动力学建模，以研究颤振振动的原因和特性。由于厚板热轧机的主轴根据连接部分在2度内倾斜，因此需要考虑主轴偏转的弹性效果。因此，与实验模型进行了比较了先前研究的方法的刚性体型和可以考虑弹性效果的柔性车身模型，并验证了准确性。根据轧制过程分析颤振频率，并与理论计算结果进行比较，以研究轧制过程中发生的情况。将颤频与连接到工作辊的主轴的自然振动频率进行比较，并且可以预期与弯曲振动直接相关。

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