The application belongs to the technical field of aircraft overall design, and discloses a kind of aircraft high trajectory coefficient multi-objective optimization method considering complex
coupling constraint, comprising: setting the design variable vector of aircraft and determining constraint condition, constructing multi-objective optimization
mathematical model;Improved multi-objective
particle swarm algorithm is used to solve, through particle coding and
population initialization, fitness evaluation and constraint
processing, non-dominated sorting and crowded distance calculation, individual optimal solution and
global optimal solution selection,
velocity vector and position update, external file maintenance and iterative convergence, output
pareto optimal solution set;From it, the particle that satisfies all constraint conditions and realizes balanced improvement on all optimization objectives is selected as the final design scheme.The application can balance multiple optimization objectives under complex
coupling constraint.