论文部分内容阅读
如何提高铸坯表面质量来满足连铸生产要求,这是当前连铸技术发展的一项重要课题,而结晶器振动曲线的形状是影响铸坯质量的重要因素之一。现场的结晶器振动机构不可避免地存在间隙及摩擦,这些非线性因素对结晶器位移的影响是值得理论和实践探讨的。基于ADAMS仿真分析软件,创建结晶器驱动机构模型,虚拟仿真理想模型状态下结晶器振动的位移曲线,以及仿真模型在含有间隙和摩擦两因素时结晶器振动的位移曲线。研究结果表明,间隙是影响振动位移曲线的主要因素,而运动副摩擦、铸坯阻力在理想模型状态下对结晶器振动位移曲线的影响不大,但在含有间隙的机构中,会导致振动曲线的形状突变更加明显。
How to improve the slab surface quality to meet the continuous casting production requirements, which is an important issue in the continuous casting technology development, and the shape of the mold vibration curve is one of the important factors that affect the slab quality. There is inevitably gap and friction in the mold vibration mechanism in the field. The influence of these nonlinear factors on the mold displacement is worth discussing theoretically and practically. Based on ADAMS simulation software, the model of mold drive mechanism was established. The displacement curve of mold vibration under the condition of virtual simulation ideal model and the displacement curve of mold vibration when the simulation model contained two factors of gap and friction were established. The results show that the clearance is the main factor affecting the vibration displacement curve. However, the kinematic friction and the slab resistance have little effect on the vibration displacement curve of the mold in the ideal model. However, in the mechanism with the gap, the vibration curve The shape of the mutation is more obvious.