基于UG的覆盖件压料面优化设计方法研究  

UG-based optimized design for blank holder of automobile panel

作　　者：孙文鹏[1] 王义林[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《锻压技术》2014年第9期150-154,共5页Forging & Stamping Technology

摘　　要：对覆盖件压料面的设计过程进行分析和研究,从其工艺要求出发,基于最小二乘法的思想,提出了使用评价函数对压料面的质量进行定量评价的方式,并给出了求解评价函数最优解的算法,实现了规则类型压料面设计的定量优化。在基于UG/NX平台的PDCAPP系统中验证了算法的可行性,并在PDCAPP系统的压料面参数化设计模块基础上完成了以评价函数为标准计算规则压料面最佳参数的程序模块。以圆柱形压料面为例,给出了用模拟退火算法求解最佳轴向和用梯度法求解最佳拟合截面线的相关公式和算法以及完整优化程序流程。The design process of blank holder of automobile panel was analyzed and studied. Starting from the process requirements and based on the idea of the least squares method, the quantitative evaluation method for quality of blank holder was proposed by using evaluation function. And the practical algorithm for the optimal solution of evaluation function was given, then a quantitative optimization for regular type of blank holder was achieved. The feasibility of algorithm was verified in system PDCAPP based on UG/NX. On the basis of system PDCAPP, the program module of calculating the optimum parameters for evaluation function of regular type of blank holder was completed. Taking a cylindrical blank holder for an example, the relevant formulas and algorithms and a complete optimization program flow were given, in which annealing algorithm was used for calculating the optimal axial and gradient method was used for calculating the best fit section.

关 键 词：覆盖件 压料面 形面优化 

分 类 号：U466[机械工程—车辆工程] TP391.7[交通运输工程—载运工具运用工程]