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国外文献 > 1.轴承 > 4. 设计与分析 > 数值方法

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标 题： A Comprehensive Model to Compute Roll Gap Profile for a Rolling Mill Including Bearing and Mill Housing Deflections
用于计算轧机滚动间隙分布的综合模型，包含轴承和轧机壳体的挠曲
作 者： Previati, Giorgio
Stabile, Pietro
Ballo, Federico
Sghirlanzoni, Davide
Frascino, Leonardo
关键词： Rolling mills  [轧钢厂]
Bearings  [ 轴承]
Finite element analysis  [ 有限元分析]
Finite element model  [ 有限元模型]
Stiffness  [ 僵硬]
Strips  [ 条带]
Deformation  [ 变形]
出版年： 2024
期刊名： Journal of manufacturing science and engineering: Transactions of the ASME
制造科学与工程杂志：美国机械工程师学会会刊
年卷期： 2024, vol.146, no.10
摘 要： Obtaining the desired strip profile is of paramount importance in cold rolling. The final strip profile depends on several parameters of the plants including crown and taper profiles and segmented backup roll positions. This paper aims to present a newly developed combined finite element–analytical model of the rolling mill able to model not only the roll cluster but also the mill housing and backup bearings deformations. This makes the proposed model especially suitable to simulate cluster-type rolling mills. The model exploits a modified elastic foundation formulation for a precise computation of the contact forces between rolls, taking into account rolls’ crown and taper. A reduced stiffness matrix approach is implemented for accurate mill housing modeling. A full 3D finite element model of the rolling mill and experimental data are used for the validation of the presented model. By exploiting the validated model, the paper shows that the deformation of supporting bearings and mill housing plays a crucial role in the strip profile calculation and should be included in any cluster-type roll mill model.

在冷轧过程中，获得理想的带钢轮廓至关重要。最终的带钢轮廓取决于轧机的多个参数，包括辊冠和锥度轮廓以及分段式背辊位置。本文旨在提出一种新开发的轧机组合有限元-解析模型，该模型不仅能够模拟辊群，还可模拟轧机壳体及背辊轴承的变形。这一特性使该模型特别适用于模拟集群式轧机。模型采用改进的弹性基础公式，精确计算辊之间的接触力，并考虑了辊的辊冠和锥度。为实现对轧机壳体的准确建模，采用了降低刚度矩阵的方法。通过使用轧机的完整三维有限元模型和实验数据，对所提出的模型进行了验证。利用经过验证的模型，本文表明支撑轴承和轧机壳体的变形在带钢轮廓计算中起着关键作用，应在所有集群式轧机模型中予以纳入。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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