任意复杂曲面的展平算法及其在五金零件毛坯展开中的应用  

Algorithm for Arbitrary Complex Surface Fflattening and Its Application in Unfolding Metal Blank

作　　者：许江平[1] 柳玉起[1] 杜亭[1] 章志兵[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,武汉430074

出　　处：《中国机械工程》2008年第2期193-195,共3页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50575080)

摘　　要：提出一种新的任意复杂曲面的展平算法,将其应用于有限元逆算法的初始位移场猜测,从而获得了良好的位移初始解。该算法具有计算快速、求解准确、易于实现、通用性好的特点。详细介绍了曲面展平算法的基本步骤,通过工程实例验证了算法的正确性和精确性。该算法不仅可以应用于冲压成形行业,还能广泛地应用于飞机、汽车、服装设计、玩具设计、制鞋等领域。A new algorithm for transforming any complex surface into a plane presented herein was applied in finite element inverse approach with initial guess, then the advantageous initial displacement was obtained. This algorithm is characterized by its fast calculation, precision, easy implementation and perfect practice. This paper introduced essential steps of this algorithm in detail, and validated the correctness and precision of this algorithm by large number of double curved surfaces. It is applied in the field of sheet metal forming, and widely applied in the field of aircraft, automobile, costumedesign,toy-making, shoe-making etc.

关 键 词：曲面展平 毛坯展平 有限元逆算法 板料成形 

分 类 号：TG382[金属学及工艺—金属压力加工] TP391[自动化与计算机技术—计算机应用技术]