Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

1 results about "Ballistic coefficient" patented technology

In ballistics, the ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. It is inversely proportional to the negative acceleration: a high number indicates a low negative acceleration—the drag on the body is small in proportion to its mass.

Aircraft high ballistic coefficient multi-objective optimization method considering complex coupling constraints

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.
Owner:XIAN MODERN CONTROL TECH RES INST