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首页> 外文期刊>International journal of materials & product technology >Computationally efficient finite element model for simulating a chipless flow-forming process
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Computationally efficient finite element model for simulating a chipless flow-forming process

机译：计算有效的有限元模型，用于模拟无屑流成型过程

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This paper describes a new approximate finite element analysis model for simulating a chipless flow-forming process. The analysis model relies on two fixed artificial planes of symmetry to define the analysis domain and reduce the computational time; these planes constrain the material. Roller tools rotate around the central axis of the process to make the analysis model statically identical to the actual process. Predictions based on models with domains that were 1 /24th and l/8th the size of the full domain were compared to check the sensitivity and validity of this technique. These predictions were also compared with experimental results from an actual automobile flow-forming process in terms of deformed shape. The predicted geometries on the artificial planes of symmetry were quite different from the experimental geometries, but those in the mid-plane were close. The l/24th-domain model provided more-reliable predictions because of the finer mesh system used.
机译：本文介绍了一种新的近似有限元分析模型，用于模拟无屑流成形过程。分析模型依靠两个固定的人工对称平面来定义分析域并减少计算时间。这些平面约束材料。滚子工具围绕过程的中心轴旋转，以使分析模型与实际过程在静态上相同。比较了基于模型的预测，该模型的域分别为完整域大小的1/24和1/8，以检查该技术的敏感性和有效性。这些预测结果还与实际汽车成形过程中变形后的实验结果进行了比较。人造对称面上的预测几何形状与实验几何形状完全不同，但中间平面的预测几何形状却接近。由于使用了更精细的网格系统，因此第l / 24域模型提供了更可靠的预测。

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