汽车内门板冲压成形CAE分析论文(正式)..docVIP

目 录 摘 要 4 ABSTRACT 5 0 引言 7 1绪论 8 1.1材料成形缺陷分析 8 1.1.1起皱 8 1.1.2破裂 9 1.1.3 回弹 9 1.2 CAE技术的发展 10 1.2.1 CAE技术的作用 10 1.2.2 CAE技术的发展 11 1.3板料成形仿真技术 11 1.3.1板料成形仿真技术的发展趋势 11 1.3.2板料成形仿真软件——DYNAFORM 13 1.4 CAE技术在汽车覆盖件冲压的应用 16 1.4.1基于Dynaform 的汽车覆盖件冲压成形及回弹仿真的研究 17 2 模拟分析及结果分析 20 2.1网格划分 20 2.2排样结果 22 2.3模拟过程分析及讨论 25 2.3.1参数一 27 2.3.2参数二 31 2.3.3参数三 33 2.3.4参数四 36 2.3.5参数五 40 2.4结果分析 42 3．结论 43 致 谢 45 参考文献 46 译文 49 原文说明 69 摘 要 汽车工业在现代工业中已经占有越来越重要的地位，汽车内门板的冲压的技术也被人们迅速地发展了起来。冲压技术和模具是整个过程中的关键，冲压模具的的设计分析可以有效的提高产品的质量，减少产品的浪费，缩短加工周期，防止产品的起皱和开裂现象。 冲压成型在汽车制造中是一种十分重要的制造技术，而汽车覆盖件大都采用冲压而成，其模具制造周期影响汽车的制造成本以及新产品开发的周期。 通过CAE软件—Dynaform的有限元的分析，对汽车饰件和零件的分析和工艺的优化也越来越普及了，本次论文就是通过CAE软件Dynaform对汽车部件—内门板的igs文件进行分析。经过划分网格，确定冲压的方向和零件层的设置等前期的优化，改变冲压速度，压边圈速度，冲压力等参数对冲压件进行模拟，优化内门板的工艺成形条件。 关键词：内门板，CAE，Dynaform CAE Analysis About Within the car door plank ABSTRACT The automobile industry already held more and more important status in the modern industry, in the automobile the shutter ramming technology rapidly has also been developed by the people. The ramming technology and the mold are in the entire process key, the ramming mold the project analysis may effective enhance the product the quality, reduces the product the waste, reduces the processing cycle, prevents the product the corrugation and the dehiscence phenomenon. The ramming formation in the automobile manufacture is one kind of very important technique of manufacture, but the automobile cover uses the ramming to become mostly, its die making cycle affects automobiles production cost as well as the new product development cycle. Through the CAE software of finite element analysis of Dynaform -- of automotive trim and the analysis of the components and process optimization is becoming more and more popular, this thesis is through the CAE software for auto parts within the Dynaform -- the igs document analysis plank. Through the mesh, determine the direction and stamping parts of the sett