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首页> 外文期刊>Materials science forum >Industrial FE-Simulation of Roughing Using an Automatic Solver Shifting Technique
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Industrial FE-Simulation of Roughing Using an Automatic Solver Shifting Technique

机译：使用自动求解器换档技术粗略工业FE模拟

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摘要

Roughing has been simulated with the Finite element software Abaqus™ to replicate an industrial-scale process. The model has been made to be as close as possible to its real counterpart. For this purpose, an automated controlling logic has been created to simulate the multiple passes as well as inter-pass times for roughing. Simulating multiple passes with FEM is computationally very demanding, so new methods to reduce computing times are worth considering. During a roll pass an explicit solver is necessary due to high deformation amounts and rates. An explicit solver is tied to a very small time increment, so it takes a long time. On the other hand, inter-pass periods do not include any deformation or roller contact, so an implicit solver is quite capable of computing this portion of the simulation. An implicit solver can speed up the time increment considerably when compared to the explicit solver, so using it potentially saves a significant amount of computing time. Unfortunately, Abaqus does not include any methods to change the solver during a single simulation. Instead it is possible to communicate between the two solver types by manually importing data from a completed simulation to a new simulation model. A new method to change solvers automatically using a self-made Python code is proposed in this paper.
机译：使用有限元软件ABAQUS™模拟粗加工以复制工业规模过程。该模型已尽可能接近其真实的对应物。为此目的，已经创建了一种自动控制逻辑来模拟多次通过以及粗加工的间隔时间。使用FEM模拟多次通过计算非常苛刻，因此减少计算时间的新方法值得考虑。在滚动过程中，由于高变形量和速率，需要显式求解器。显式求解器与一个非常小的时间增量相关联，因此需要很长时间。另一方面，间隔时段不包括任何变形或滚子接触，因此隐式求解器非常能够计算模拟的这部分。与显式求解器相比，隐式求解器可以显着加速时间增量，因此使用它可能节省大量的计算时间。不幸的是，ABAQUS不包括在单一仿真过程中更改求解器的任何方法。相反，可以通过从完成的模拟从完成的模拟从完成的模拟将数据导入到新的仿真模型之间进行通信。本文提出了一种使用自制Python代码自动改变求解器的新方法。

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  • 来源
    《Materials science forum》 |2021年第2期|1312-1317|共6页
  • 作者

    Oskari Seppaelae; Joonas llmola; Jari Larkiola;

  • 作者单位

    Materials and Mechanical Engineering University of Oulu P.O. Box 4200 FI-90014 University of Oulu Finland;

    Materials and Mechanical Engineering University of Oulu P.O. Box 4200 FI-90014 University of Oulu Finland;

    Materials and Mechanical Engineering University of Oulu P.O. Box 4200 FI-90014 University of Oulu Finland;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Roughing; FEM; Multi-pass; Solver shifter;

    机译：粗加工;FEM;多通;求解器换体;

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