Mesh parameterization automatic generation and direction optimization of free-form single-layer spatial structure based on genetic algorithm
The relationship between the mechanical performance of free-form surface space grid structures and the orientation of the grid is intricate,posing challenges in swiftly and accurately determining the optimal direction.If the multi-angle modeling analysis of the structural grid direction is carried out,there are problems such as heavy workload and difficulty in ensuring accuracy.In order to quickly determine the optimal grid direction of free-form surface space grid structure,a grid direction optimization method of free-form surface space grid structure based on genetic algorithm was proposed.Taking the structural grid direction as the optimization variable,the parametric analysis was realized by combining the parametric modeling software Grasshopper and the finite element analysis software SAP2000.The structural strain energy and the maximum displacement of the structure were taken as the optimization objectives,and the structural grid direction optimization was realized by minimizing the objective function.Through parametric programming,rapid automatic optimization can be realized,and engineering cases demonstrate its efficacy in grid optimization.The results show that the automatic optimization method of grid direction of free-form surface space grid structure based on genetic algorithm is practical and efficient,and has high engineering application value.
free-form space grid structuregrid generationgrid optimizationparameterization
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