Research On Modeling And Control For Super-maneuver Flight Motion Of Advanced Fighters

With the rapid developments in aviation technology and widely application in military, thetactical performance of the military combat aircraft has been greatly improved. In air combat in thefuture, beyond visual range air combat would become an important combat method, and the advancedfighter has excellent operational performance. Thus the advanced fighter will be one of the key factorsin winning the war. In this thesis, the motion modeling and characteristics analysis ofsuper-maneuvering flight, sliding mode flight control with unidirectional auxiliary surfaces, theadaptive fuzzy sliding mode flight control, and nonlinear disturbance observer based flight control areinvestigated for the advanced fighter. the main research results are as follows:First at all, the flight environment analysis, aerodynamic coefficients treatment and engine modelare studied. And then the control characteristics such as open-loop dynamic, channels coupling,uncertainty influence demonstrate that the proposed dynamic model is according with current data andcan be applied in researching and simulating advanced guidance and control method.Secondly, a new sliding mode control with unidirectional auxiliary surfaces (SMC-UAS) schemeis presented for the advanced fighter. Under the developed SMC-UAS, the Cobra maneuver isachieved for the advanced fighter. The simulation result shows good control effects.After that, considering the modeling errors for advanced fighter and strong environmentalinterference during the flight and fight processes, two sliding mode control with unidirectionalauxiliary surfaces flight control systems based on adaptation fuzzy control theory and nonlineardisturbance observer are built, respectively. The control performance of advanced fighter planenonlinear system is improved totally and the stability of the entire closed loop system is also provedstrictly by approaching interference effectively. The new simulation of cobra maneuver is improvedsystems have better robustness.Finally, a three-dimension visual simulation system on advanced fighter plane super power isstudied. In that process, basic development tools and workflow for three dimension visual simulationsystem are introduced and a simulation system for air fight is designed, also. On the base of that, thethree-dimensional animation simulation for cobra maneuver is finally achieved.