| 面向设计的板料成形快速仿真系统FASTAMP |
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| 引用本文： | 杜亭,柳玉起,章志兵,李志刚.面向设计的板料成形快速仿真系统FASTAMP[J].中国机械工程,2006(Z1). |
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| 作者姓名： | 杜亭 柳玉起 章志兵 李志刚 |
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| 作者单位： | [1]华中科技大学塑性成形模拟及模具技术国家重点实验室 [2]武汉 [3]430074 |
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| 摘 要： | FASTAMP是基于改进的有限元逆算法和动力显式算法的板料成形快速仿真软件。改进的逆算法求解器采用了考虑弯曲效应的DKQ四边形单元及方程组快速求解算法,真实考虑了摩擦、压边力、背压力和曲压料面等实际工艺条件,在模拟精度和速度上均有较大的提高。系统结合了两种算法的优势,将产品设计、选材和工艺设计三个独立的过程紧密结合起来,可快速分析产品设计中的潜在缺陷,为工艺设计人员提供有效的工艺设计参考和强有力的设计辅助分析工具。
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| 关 键 词： | 板料成形 FASTAMP 有限元逆算法 产品设计 工艺设计 |
Fast FE Analysis System for Sheet Metal Stamping-FASTAMP |
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| Du Ting Liu Yuqi Zhang Zhibing Li Zhigang State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan.Fast FE Analysis System for Sheet Metal Stamping-FASTAMP[J].China Mechanical Engineering,2006(Z1). |
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| Authors: | Du Ting Liu Yuqi Zhang Zhibing Li Zhigang State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology Huazhong University of Science and Technology Wuhan |
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| Affiliation: | Du Ting Liu Yuqi Zhang Zhibing Li Zhigang State Key Laboratory of Plastic Forming Simulation and Die & Mould Technology,Huazhong University of Science and Technology,Wuhan,430074 |
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| Abstract: | FASTAMP is a fast FE analysis system for sheet metal stamping, which is based on an improved inverse approach and dynamic explicit method. The improved algorithm successfully avoids the strain localization problem existing in plastic deformation theory to lay foundation for the inverse approach. Quadrilateral membrane elements together with DKQ bend element are used in the algorithm to considering bending effect. More accurate model is built in the system so that the process parameters, such as blank holding force, friction and drawbead restriction, can be taken into account. Press types, eject plate and other influence factors on sheet metal forming are also considered. As a result, the system can be applied to potential defects detection, formability analysis, material selection and process verification. Product design, process planning and die design can be integrated by FASTAMP, so that product formability can be ensured, optimization of stamping process and die structure achieved. |
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| Keywords: | sheet metal stamping FASTAMP inverse approach product design process planning |
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