锻压技术

多机架连轧振动耦合的建模仿真分析

英文标题：Modeling simulation and analysis of coupled vibrations of multi-stand tandem rolling

作者：刘义伦冷志坚许宝玉付卓

关键词：连轧颤振耦合振动

分类号：TH113

出版年,卷(期):页码：2010,35(3):99-104

摘要：

主要研究连轧机振动耦合。通过对轧机振动产生的原因分析，建立了一种轧制过程模型和轧机结构模型耦合的单机架颤振系统，并构建了连轧振动系统。对两个模型进行仿真，比较分析得出引起轧机振动耦合的主要原因是轧辊的振动导致出口板带缺陷和机架间张力的变化,通过现场轧制实验验证了模型和仿真结果的正确性。此外，轧制速度及合理布置轧机间的距离对整个连轧系统的稳定性有着重要的影响。

The coupled vibrations among the tandem rolling mills were mainly studied. Through analyzing the causes of the rolling mill vibration, a single-stand chatter system coupled rolling mill process model and mill structure model was established, and a tandem rolling mill vibration system was built. By simulating these two models and comparing them, the results show that the main causes of rolling mill coupled vibrations are the strip's exit defects caused by work-roll vibration and the change of tension between the inter stands. Finally, the correctness of the model and simulation results were verified through on-site rolling experiments. Moreover, roll velocity and rational arrangement of the distance between the stands have an important impact on the system stability.

基金项目：

教育部科学技术重点资助项目（106123）

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