5m精轧机立辊回油管振动的FLUENT软件仿真

分析了宝钢厚板部生产5m宽钢板的精轧机立辊回油管振动情况,建立了管路的数学模型.利用Gambit软件建立回油管的三维模型并划分网格,采用流体动力学计算软件FLUENT对管路进行仿真分析.分析发现,回油管内的空穴和湍流是产生振动和噪声的原因.提出了回油管改造方法并进行了仿真验证,结果表明,改造后的回油管内空穴和湍流现象明显减少,有效地减轻了振动.本文工作对生产线的调试和最终运行提供了理论依据.

FLUENT Simulation on Vibration of Oil Return Pipes for 5 m Finishing Mill Edging Rolls

The vibration of oil return pipes for edging rolls of a finishing mill which produces 5 m wide steel plates was systematically analyzed,and a mathematical model of the pipeline was established.3D models for the oil return pipe were built and meshed by using the Gambit software.Simulation results were obtained with the FLUENT software.It is revealed that the vibrations and noises are caused by the cavitations and turbulence in the oil return pipe.A method for improving the oil return pipe was proposed and verified by simulation.The results showed that the cavitations and turbulence in the modified oil return pipe are reduced obviously and the vibration is alleviated effectively.The work in the paper provides a theoretical foundation for debugging and running the production line.