摘要
以某冷连轧机组轧制过程中两机架间运动带钢为研究对象,根据运动梁理论和运动薄板理论,分别建立了轧制过程运动带钢动力学模型。通过Galerkin截断,把描述系统运动的偏微分方程离散化。利用数值方法分析了轧制过程运动带钢的固有特性和稳定性。并对某连轧机组进行稳定性分析,分析结果表明:该机组第二和第三机架间运动板带的极限速度可以达到32m/s,并且基于运动梁模型和基于运动薄板模型所计算出的结果极为接近,验证了所建模型的正确性。
Take the moving strip between two mills of some cold tandem rolling mill in roiling process, according to the theory of moving beam and Poisson-Kirchhoff sheet theory, the dynamic model of moving strip in the rolling process was established. The partial differential equation was discreted by the Galerkin truncation. The natural frequency and stability of the moving strip were investigated and the simulation was made on some tandem rolling mill by numerical method. Simulation results show that, the limited rolling speed of strip between the second stand and third stand can reach 32m/s, and the results based on moving beam theory and sheet theory are identical, so that the correction of model proposed can be verified.
出处
《冶金设备》
2009年第5期25-29,共5页
Metallurgical Equipment
