面向熔融沉积成型的树状支撑结构生成设计方法

Tree-inspired generative design method of support structures for FDM

为快速有效地生成熔融沉积成型工艺所需的稳定支撑结构问题、为3D打印提供多类型支撑结构,通过分析典型树状结构生成算法,提出一种树状支撑结构设计方法。对L-系统的字符串进行统一参数化表达,采用改进的L-系统算法对最简单单轴结构、一般单轴结构和合轴结构的生成算法进行了设计,并结合应用实例验证了所提方法的可行性。

To generate the stability support structure needed by Fused Deposition Modeling（FDM）quickly,and to provide richer and more diverse supports for 3D Printing,a tree-like support structure design method were proposed through analyzing the features of typical tree generative algorithms.The parametric strings were uniformly expressed according to the basic law of L-system.With the improved algorithm of L-system,the generative algorithms of simplest,general monopodial and sympodial branching structure were designed.On the basis of the above theories,the support structure for FDM was designed and implemented.The feasibility and stability of the proposed method were also verified.