| 基于显式求解的板材卷制成形力学行为分析 |
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| 引用本文： | 王江超,牛业兴,熊家炜,周宏,刘建成,张宏飞,任乐天.基于显式求解的板材卷制成形力学行为分析[J].船舶工程,2020,42(4):114-120. |
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| 作者姓名： | 王江超 牛业兴 熊家炜 周宏 刘建成 张宏飞 任乐天 |
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| 作者单位： | 华中科技大学 船舶与海洋工程学院,上海振华重工启东海洋工程股份有限公司,华中科技大学 船舶与海洋工程学院,江苏科技大学 船舶与海洋工程学院,招商局重工江苏有限公司,江苏新扬子造船有限公司,江苏新扬子造船有限公司 |
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| 基金项目： | 工信部“半潜式起重拆解平台开发”项目（No. 614(2017)） |
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| 摘 要： | 三辊卷制成形作为船体外板弯曲成形加工的主要方法,影响船体建造的精度和效率。本研究针对船体外板的三辊卷制成形过程,基于ANSYS和LS-DYNA的非线性显示求解,考虑了轴棍-板材的接触问题和卷制成形的力学行为,预测的板材弯曲形状与实际测量数据基本吻合。同时,研究了板材材质、上辊下压位移以及下辊间距等对板材卷制成形精度的影响,建立了各工艺参数与板材卷制曲率半径间的数学关系,并进行了验证。
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| 关 键 词： | 三辊卷制弯曲 接触非线性问题 有限元显示求解 上辊下压位移 |
| 收稿时间： | 2019/5/16 0:00:00 |
| 修稿时间： | 2019/8/14 0:00:00 |
Investigation on Mechanical Behavior of Plate Rolling Forming with Explicit FE Computation |
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| wangjiangchao,and.Investigation on Mechanical Behavior of Plate Rolling Forming with Explicit FE Computation[J].Ship Engineering,2020,42(4):114-120. |
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| Authors: | wangjiangchao and |
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| Abstract: | Plate rolling forming is an essential manufacturing process of plate forming during shipbuilding, which will influence the fabrication precision and efficiency. In this research, explicit FE computation of LS-DYNA was carried out to simulate the plate rolling forming process, and with considering the roll-plate contact problem and mechanical response, computed bending deformation has a good agreement with measurement. Meanwhile, the influences of material property, moving down displacement of upper roll and distance between lower rolls on plate forming were examined, and relations of process parameters and curvature radius were also proposed and validated. |
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| Keywords: | rolling forming contact problem explicit FE computation moving down displacement of upper roll |
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