一种基于自适应细分算法的舰艇零件造型方法

摘要

基于舰艇作战或巡航时隐身性能的需要,针对舰艇关键零件的设计和加工制造现状,结合应用日益广泛的细分曲面造型方法,以Catmull-Clark (C-C)细分算法为基础,提出一种基于网格边光顺程度计算的自适应细分算法,将其应用于船用螺旋桨的设计实验,并将实验结果与原始Catmull-Clark细分算法结果、传统均值计算结果进行比较.实验结果证明,该自适应细分算法能够在满足零件设计现实需求的前提下较好地减少网格数量,并能克服以往基于均值计算的自适应算法存在的区分能力不足的影响.%To meet the stealth performance based on ship combat or cruise ships,an adaptive subdivision algorithm based on the grid side is proposed according to the current situation of key parts in the design and manufacturing, which combines with the subdivision surface modeling and applies Catmull-Clark subdivision algorithm. The proposed algorithm is applied in the design experiments of marine propeller. The experimental results are compared with that of the original Catmull-Clark subdivision algorithm and calculation of the degree of smoothing applied to, and the experimental results with the results of the original Catmull-Clark subdivision algorithm. Experimental results show that the adaptive subdivision algorithm can meet with the real needs in part design and overcome the ability based on the impact of adaptive algorithms and the previous calculation based on the mean.