| 二维截面法在精确预测汽车梁类件回弹上的应用 |
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| 引用本文： | 聂昕,成艾国,钟志华,申丹凤.二维截面法在精确预测汽车梁类件回弹上的应用[J].汽车工程,2007,29(1):83-86,32. |
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| 作者姓名： | 聂昕 成艾国 钟志华 申丹凤 |
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| 作者单位： | 湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082;湖南大学,汽车车身先进设计制造国家重点实验室,长沙,410082 |
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| 基金项目： | 国家自然科学基金;智能化大型复杂模具设计制造成套技术与装备的开发和应用示范攻关项目;湖南省科技厅科研项目 |
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| 摘 要： | 三维零件回弹结果的精确预测一直是个难题，文中把二维截面法应用到对三维零件回弹管预测和补偿上，离散整个三维零件为各个特征截面，通过二维截面法和有限元软件LS-DYNA精确地对汽车纵梁回弹和补偿进行了预测计算，实践证明。通过两次的回弹预测和补偿计算，汽车纵梁补偿后的回弹结果和实际产品形状相比，误差在0．5mm以内，有很好的实用价值。
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| 关 键 词： | 二维截面法 回弹 纵梁 |
| 修稿时间： | 2006-06-152006-08-23 |
The Application of 2-D Section Method to the Accurate Prediction on Springback of Automotive Beam Parts |
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| Nie Xin,Cheng Aiguo,Zhong Zhihua,Shen Danfeng.The Application of 2-D Section Method to the Accurate Prediction on Springback of Automotive Beam Parts[J].Automotive Engineering,2007,29(1):83-86,32. |
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| Authors: | Nie Xin Cheng Aiguo Zhong Zhihua Shen Danfeng |
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| Institution: | Hunan University, State Key Laboratory of Advanced Design and Manufacture for Vehicle Body, Changsha 410082 |
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| Abstract: | The 2-D section method is applied to the calculation and compensation of springback of 3-D parts, taking the side member of automotive frame as example. Several feature sections are taken from the side member and their springback and compensation are calculated by using 2-D section method and FEM software LSDYNA. The practice shows that through twice calculations of springback and compensation, the predicted springback of automotive side member is fairly close to the shape of real product with an error within 0. 5mm. |
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| Keywords: | 2-D section method Springback Side member |
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