本研究创造性地提出了一种集参数化建模、结构分析与优化、数字加工与建造于一体的,应用于负高斯曲面形式的互承结构数字化设计与建造流程.该流程主要包括以下步骤:首先,运用参数化建模得到初始的互承网格,进而进行力学分析,并以质量、应变能为优化目标,引入遗传算法对参数进行优化;其次,通过数控切割等技术,进行数字建造.本案存在如下创新:以粒子-弹簧法创建互承结构的基本形态适应构件的几何约束,采用简化的结构分析并加入杆件截面选择机制进行交互分析,借助遗传优化算法对参数和方案进行优化与选择.
This paper innovatively presents a computational workflow for design and fabrication of reciprocal systems.The proposed method integrates parametric modeling,structural analysis and optimization,digital processing and construction,and includes the following steps.Firstly,it uses parametric modeling to obtain the initial grid.Secondly,mechanical analysis is performed and genetic algorithm is introduced to optimize the parameters with mass and strain energy as the optimization objectives.Finally,the digital construction is carried out by means of techniques such as CNC cutting.The following innovations are present in this scheme.The mass-spring method is used to create the basic form of the reciprocal systems to accommodate for geometric constraints,and the simplified structural analysis and bar selection procedure is used for interactive analysis.Genetic optimization algorithm is used to optimize and select the parameters and the scheme.
雷畅
南京大学建筑与城市规划学院
土木建筑
互承结构;结构优化;数字化设计;数字建造
reciprocal structure;structural optimization;computational design;digital construction
《城市建筑》 2024 (008)
169-173 / 5
10.19892/j.cnki.csjz.2024.08.40
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