Research Of Parametric Architecture Design Method Based On Multiphysics Objective Optimization

This paper introduces a new parametric design method,which combines parametric software,physical performance analysis software,and structural performance analysis software,and finally obtains the optimal solution in different evaluation modes.It is a method for building structure optimization design based on multi-physics and multi-objective analysis.The Shanghai Tower is selected as the research model.First,a parametric model is established under the visual programming software Grasshopper.Then single-objective optimization is performed for the influence factors of solar radiation,gravity,and wind.During temperature field analysis,solar radiation analysis is performed on the model by Ecotect software and Geco plug-in.And then through data processing,a reasonable objective function is found.The best building rotation form when the solar radiation is minimum is found by the optimization module.In the analysis of gravity field,through the establishment of the finite element model of Shanghai tower,the mechanical structure line is found,and the structural model is determined by the force flow.Karamba is used for structural analysis and optimization under the action of gravity.For the external wind field,combined with CFD simulation technology,the wind environment of the building is analyzed in Ansys Fluent.Finally,the above three physics targets are weighted and optimized to find the optimal structural form of the building model under the action of multiple physics,and to achieve multi-objective optimization design.The optimal building structural form of the building during the design period is found.Under the parameterization software Grasshopper,wind,solar radiation and gravity are selected as the research entry points.Combining the physical performance of the building and the mechanical performance of the structure,the genetic optimization algorithm is used to analyze and calculate by using various software to write a universal optimization design module.Finally,a rational optimization of the building form and structure is achieved.