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(STSI-33)A Novel Approach for the Modeling of Tension Leveling Processesby Employing Parametric Shape Functions

机译:(STSI-33)采用参数形函数的张力调整过程建模的新方法

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Strip flatness and surface quality are crucial factors forthe production of high-quality cold-rolled metal strips.Tension leveling (e.g., employed as one of the finalsteps in continuous galvanizing and finishing lines)improves strip flatness and minimizes residualstresses by inducing small elasto-plastic strip deformations,while the strip is bent under high tensionaround multiple rolls with small diameters.In order to improve the design process for suchtension leveling machines, precise models areessential, yielding key results like the strip bendingline, the reaction forces at the bending rolls, therequired level of tension, the tension losses (due todissipation resulting from plastic deformation) as wellas the power requirements of the drives.Extensive analyses of the tension leveling processemploying commercial FEM-packages led to a comprehensiveunderstanding of the underlying physicaleffects and correlations. However, up to severalmillion degrees of freedom are required for significantand reliable 3-D FEM-simulations, which leads to unacceptablecalculation run-times even on modernmainframes.
机译:条带平整度和表面质量是强化冷轧金属条的关键因素。液体调平(例如,用作连续镀锌和整体线中的最终抗部之一)改善了条带平整度,并通过诱导小弹塑性塑料最小化残留物条带变形,而条带弯曲的高循环圆辊小直径。为了提高诸如诸如诸如诸着设计过程,精确的模型是必要的,产生关键的结果,就像条带弯曲一样,在弯曲辊上的反作用力,有时张力水平,张力损失(由于塑料变形导致的由于塑料变形而导致)的电力要求。张力调平流程的延长分析,商业FEM包的延长分析导致了潜在的物理化学性能和相关性的综述。然而,显着的可靠性3-D有限元模拟需要高达几百万分之一的自由度,即使在现代框架上也导致不可接受的分布。

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