Topology Optimization Of Structure Layout For Aircraft Wing

Type of aircraft wing structure design is still determined by primarily qualitative orsemi-qualitative and semi-quantitative method.Topology optimization can give force transmissionpath of the structure to find the best form of transmission structure.The study of three-dimensionaltopological optimization of wing structure question has important theoretical and practical value.In this paper, Catia is used to model the wing geometry in given loads and constraints and themodel is imported to the finite element analysis software HyperWorks.Topology optimization of thewing box structure is conducted with the integration of iSIGHT and HyperWorks. Quantitativeanalysis of the wing structure give the main wing structure force transmission path to determine thelocation of the distribution of vertical force componentwhich proves that the method can give a clearvertical load path of the wing structure.And a secondary wing box model is builtbased on the results of topology optimization as well asa new arrangement of the wing skin, vertical walls and ribs, and the model was two-stage optimized togive the size of the skin, vertical walls, wing ribs and beams and other bearing components.Also thesize of thewing box with traditional double-beam structurehas been optimized in the same condition.We can draw such a conclusionthat the result of topology optimization is better than the result oftraditional double-beam structure by comparing the results. This proves the feasibility and practicalityof the method in this paper which giveslayout of vertical force transmission components.This paperalso provide a reference of a way to design the layoutof wing structure quantitatively for the aircraftdesigners...