Research On The Generative Design Of Dynamic Building Skin In Xiamen Area Based On The Coupling Of Daylighting And Solar Factors

As the "surface" of the indoor and outdoor environment,the dynamic building skin is one of the important strategies to realize green building energy saving by giving full play to its regulating effect on indoor environment.In recent years,the research on CAAD has developed rapidly,providing a new way for the design of dynamic building skin.In this research,two types of environmental factors,daylighting and sunlight,were used as the starting point.The combination of the Grasshopper and Ladybug tools was used to study the generative design of dynamic building skin.Starting from the relationship between the indoor environment and the building skin,the research object--dynamic building skin is introduced.The combination of performance-driven design methods and parametric software provides a design method and technical platform for the design of dynamic building skin.On this basis,a process framework of dynamic building skin generative design based on the coupling of day lighting and solar factors is further proposed.The process framework of dynamic building skin generative design mainly contains two parts:generative logic and generative program writing.First of all,the research elaborates the formulation of the generative logic of the dynamic building skin from four aspects,including the response to environmental factors,the formulation of regulatory mechanisms,the conception of unit forms,and the simulation and optimization of environment performance.Subsequently,the writing of the shape program,simulation program,optimization program and visualization program in the generative program was analyzed.Subsequently,the research results were applied to the design,combined with the above-mentioned generative logic and generative program,an attempt was made to design experiments.And the corresponding evaluation indicators were used to analyze the design cases.The design experiments realized the generation of three different forms of dynamic building skin.The designed skins have their own advantages in terms of lighting and energy saving.The experimental results show that the UDI of the studied office space can be improved to 100%by dynamic building skin,which is 33.33%higher than that of the space without skin.In terms of energy saving,the dynamic building skin can reduce energy consumption by 823.54KWh.Experiments have shown that the dynamic building skin has great potential in improving indoor light environment and reducing building energy consumption.Finally,the technical advantages and limitations of the dynamic building skin generative design based on the coupling of daylight and solar factors are proposed,and the development of it is prospected.