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首页> 外文期刊>Journal of Ship Production >Practical Design Equations for Cold Roll Forming of Doubly Curved Hull Plates Using Line Array Roll Set
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Practical Design Equations for Cold Roll Forming of Doubly Curved Hull Plates Using Line Array Roll Set

机译：使用线阵辊组的双曲船体板冷轧成形实用设计方程

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摘要

The line array roll set (LARS) process, as one of many kinds of incremental forming processes, is a continuous process in which a flat metal plate is formed into a singly or doubly curved plate through successive passes of forming rolls. It was found that the curvature level of the formed plates in the previous study was well over the curvature required in shipyards. This fact shows that the LARS method has good potential for shipbuilding applications. A ship hull is composed of many curved plates with various double curvatures. Consequently, for the desired curvatures of target shapes, the bending radii must be determined considering the springback phenomenon. In the present study, design equations are proposed for engineering applications, particularly in relation to shipbuilding. For the development of design equations, the deformation of the plates is analyzed using some engineering assumptions. In addition, experimental coefficients are introduced to simplify the theoretical equations. The experimental coefficients are determined as the best fit for the experimental data using the least squares method, resulting in the derivation of design equations. It has been shown that the prediction from the design equation with the results from the experiments shows good agreement and can be used for practical applications.
机译：作为许多增量成形工艺中的一种，线阵轧辊定型（LARS）工艺是一种连续工艺，其中，平坦的金属板通过成形辊的连续通过而形成为单个或双重弯曲的板。发现在先前的研究中，成形板的曲率水平远远超过了船厂所要求的曲率。这一事实表明，LARS方法在造船应用中具有良好的潜力。船体由许多具有不同双曲率的弯曲板组成。因此，对于目标形状的期望曲率，必须考虑回弹现象来确定弯曲半径。在本研究中，提出了用于工程应用的设计方程，特别是在造船方面。为了开发设计方程，使用一些工程假设分析了板的变形。另外，引入实验系数来简化理论方程。使用最小二乘法将实验系数确定为最适合实验数据，从而推导设计方程。结果表明，设计方程的预测结果与实验结果吻合良好，可用于实际应用。

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  • 来源
    《Journal of Ship Production》 |2010年第3期|P.177-186|共10页
  • 作者

    Do-Sik Shim; Dong-Yol Yang; Kwang-Heui Kim; Sung Wook Chung; Myoung Soo Han;

  • 作者单位

    Dept. of Mechanical Engineering, KAIST, Daejeon, South Korea;

    rnDept. of Mechanical Engineering, KAIST, Daejeon, South Korea;

    rnSchool of Mechanical Engineering, Pukyong National University, South Korea;

    rnProject Research Group, Industrial Application R&D Institute, Daewoo Shipbuilding and Marine Engineering Co., Ltd, South Korea;

    rnProject Research Group, Industrial Application R&D Institute, Daewoo Shipbuilding and Marine Engineering Co., Ltd, South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    hull form; design (general);

    机译：船体形式设计（一般）;

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