基于数值模拟的锻造预成形优化设计系统集成

Integration of Preform Design Optimization System Based on Numerical Simulation

净形和近净形制造要求锻造预成形设计不仅要实现产品的形状，而且要实现材料、能耗、锻件质量等目标优化。仅仅依靠经验已不可能达到优化设计的要求，必须借助于数值模拟结果中包含的丰富的信息来指导设计。本文提出了基于数值模拟的锻造预成形优化设计系统框架，针对现有的设计和分析工具功能强大却相对独立的特点，提出了可实现预成形优化设计的设计和分析工具集成的方法。

The recent trend of net shape and near net shape manufacturing requires that forging preform design should be optimized to save materials and energy.Numerical simulation makes it possible to optimize preform design.The framework of the computer aided system of preform design optimization is developed, the methods to integrate CAD software and FEM software are analyzed in this paper. Finally the best approach is suggested which can optimize preform design while keep CAD software and FEM software independent.