The Lightweight Of Models Using Three-periodic Minimal Surfaces

In the process development of modern society,lightweight technology for "low carbon,environmental protection,sustainable development" of the relevant policy implementation has an important role.Lightweight is designed to meet the performance of the object using the constraints of the nonfunctioning part to reduce the quality.Three-cycle minimal surface is a very simple and mathematical structure of the complex shape,it is cyclical(along the X,Y,Z axis are cyclical changes)to construct a three-dimensional space on a smooth all-connected porous structure.In this paper,we focus on the modeling and optimization of the entities using the porous structure.In the modeling process,the internal support structure and the skin of the whole lightweight object are obtained by boolean operation,which satisfies the given force requirement and structural stability.In the optimization process,the finite element analysis technique is used to verify the stress of the design model and verified by 3D printing.Specifically,the lightweight modeling as a whole includes three major modules: lightweight model entity preprocessing,lightweight model modeling generation,and physical print detection feedback.The lightweight preprocessing model is mainly responsible for the information acquisition and stress analysis of the lightweight objects,and provides the guarantee for the model to reduce the weight.The modeling of the lightweight model completes the modeling of the minimal model with the whole model and the optimization effect;The main function of the entity print detection feedback is to verify whether the minimal surface kernel satisfies the user's needs and ensures the physical stability of the lightweight model.In this paper,a complete set of lightweight models from the input of the solid model to the generation of the lightweight modeling and the detection of the lightweight model are designed through the combination of the above modules.Under the user's requirement constraints,Quantify the conversion of model results.The experimental results show that the model lightweight method based on the three-cycle minimal-surface porous structure is feasible and satisfies the given stress and structural safety requirements.