基于有限元逆算法的压边力优化  

The Optimization of Blank Holding Force Based on FE Inverse Approach

作　　者：杜臣勇[1] 董湘怀[1] 

机构地区：[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,湖北武汉430074

出　　处：《计算机仿真》2003年第6期37-39,81,82,共5页Computer Simulation

基　　金："十五"国家科技攻关计划资助课题 ( 2 0 0 1BA2 0 3B0 9)

摘　　要：依据理想形变理论 ,研究开发了冲压成形过程模拟的有限元逆算法 ,实现了计算机程序 ,并利用有限元逆算法 ,以变形后工件中厚度分布误差为目标函数 ,对冲压过程中的压边力进行优化。通过实例证明了逆算法及基于逆算法的冲压工艺参数优化方法的有效性。Based on ideal deformation theory, the authors developed a finite element inverse approach for sheet metal forming process simulation,and the computer program was implemented. The finite element inverse approach is applied to the blank holding force optimum design where the objective function is defined to minimize the error tolerance of thinkness distribution on the workpiece. Numerical simulation shows that this method can analyze the deformation of sheet metal forming part qualitatively rapidly, and can be used for the optimization of the process parameters.

关 键 词：金属板料 冲压工艺 成形过程 压边力 优化 逆算法 有限元 仿真 

分 类 号：TG386[金属学及工艺—金属压力加工] TP391.9[自动化与计算机技术—计算机应用技术]