Optimal Flight Trajectory Design Of New Concept Morphing Aircraft

The traditional aircraft with fixed-shape, it is generally accepted that the geometry of traditional wings should be designed according to the special mission. A bran-new concept proposed to meet the needs of the rapid development of aerospace technology, and people put forward the concept of morphing aircrafts. Morphing aircraft is a new concept of multi-purpose and multi-configuration aircraft, Morphing aircraft can perform adaptive deformation and change its aerodynamic layout according to the need of different environment and mission, so as to gain optimal flight performance.In this thesis, new concept Z type folding wing deformation vehicle and new concept morphing aircraft with flexible and variable sweep wings are the two main research object, which can make large scale deformation in the wing. how to change the airfoil shape to adapt the different flight conditions of Z type folding wing deformation vehicle and morphing aircraft with flexible and variable sweep wings are studied.Firstly, this dissertation introduced the basic concept of morphing aircraft, then briefly introduced the research status quo of countries around the world in the field.Secondly, designed respectively corresponding to a conceptual model of the two kinds of morphing aircraft,and carried on numerical simulation of the aerodynamic characteristic of Z type folding wing deformation vehicle and morphing aircraft with flexible and variable sweep wings by CFD, the lift coefficient and drag coefficient in the different deformation scales have been obtained, this dissertation showed the relationship between the scale of wing’s deformations and the aerodynamic parameter.Thirdly, this dissertation made a research in climb, cruise, gliding and drop optimal flight scheme under different flight mission of Z type folding wing deformation vehicle and morphing aircraft with flexible and variable sweep wings, the selection method of motion energy state building optimization model, establish the four kind of flight condition optimization index function, which optimization algorithm to choose an improved quantum genetic optimization algorithm.Finally, this dissertation made simulation and analysis in the fastest climb from the ground, the farthest cruise, the farthest gliding to the ground and the fastest drop to the ground optimal flight trajectory optimization under different flight mission of Z type folding wing deformation vehicle and morphing aircraft with flexible and variable sweep wings in MATLAB.