| 基于FEM分析的板料冲压毛坯形状反算研究 |
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| 引用本文： | 武殿梁,黄海量,胡晓冬,洪军,丁玉成.基于FEM分析的板料冲压毛坯形状反算研究[J].汽车工程,2002,24(1):79-83. |
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| 作者姓名： | 武殿梁 黄海量 胡晓冬 洪军 丁玉成 |
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| 作者单位： | 西安交通大学 |
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| 基金项目： | 2000年全国高等学校优秀博士论文专项资金资助项目,200026 |
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| 摘 要： | 利用覆盖拉延件成形过程的FEM分析结果,提出一种基于坐标变换和局部坐标不变性的毛坯反推算法,推导了反算公式,并给出可快速确定点所属单元的新算法。当使FEM输出中间网格数据后,该算法可用于h法和p法自适应网格划分。最后使用LS-DYNA950对方盒深冲作h法自适应分析为例验证本算法,结果表明该方法可以较精确地预测出板料毛坯形状。
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| 关 键 词： | FEM 板料冲压 毛坯 反算 |
| 修稿时间： | 2001年3月12日 |
A Research on Defining Blank Shape for Stamping Based on FEM Simulation |
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| Wu Dianliang,Huang Hailiang,Hu Xiangdong,Hong Jun & Ding YuchengXi''''an Jiaotong University.A Research on Defining Blank Shape for Stamping Based on FEM Simulation[J].Automotive Engineering,2002,24(1):79-83. |
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| Authors: | Wu Dianliang Huang Hailiang Hu Xiangdong Hong Jun & Ding YuchengXi'an Jiaotong University |
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| Abstract: | Using the result of FEM simulation for sheet metal forming analysis, a new method to determine the blank shape was developed, based on invariability of local coordinates and coordinates transformation, and the corresponding formulas were derived. To find the element which contain a given analysis was obtained, this method can be used to predict the blank shape with adaptive finite element analysis using h method or p method. As an example, the blank shape of a quadrate box was calculated by simulation with h method adaptive finite element analysis in LS-DYNA950. The result proved the feasibility and the effectiveness of the method. |
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| Keywords: | FEM Sheet stamping Blank Reverse calculation |
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