某小型无人倾转旋翼机飞行控制系统设计与仿真

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1、某小型无人倾转旋翼机控制系统设计与仿真ABSTRACTThemaincontentofthisarticlearetwoparts:modelingthenonlinearflightdynamicsoftheaircraftandcontrolsystemdesign.Firstofall,rotoraerodynamicmodelofasmallunmannedtiltrotoraircraftisestablishedbaseonbladeelementTheoryandbycombiningwi

2、thwindtunneltestdataoftheaircraftthewings,fuselage,flattailandverticaltailaerodynamicaremodeled,thencombinetheaerodynamicmodelofeachpartintoacompletenonlinearflightdynamicsmodelofasmallunmannedtiltrotoraircraft.Thenacelleangle-speedflightenvelopeiscalcul

3、atedbytrimmingandanalyzingthenonlinearflightdynamicsmode.linearizethenonlinearmodelbasedonsmallperturbationtheoryandanalysisthestabilityandmaneuverabilityofsmallunmannedtiltrotoraircraft.Designaconversiontrajectoryfromhelicopterflightmodetofixedwingaircr

4、aftflightmode.Secondary,designthecontrollawofsmallunmannedtiltrotoraircraftattitude,accordingtothelinearmodel,usingH∞loopshapingrobustcontrolmethod.Thewholeconversioncorridorisdividedseveralcontrolareas,thenspeedloopcontrollawisdesignedwiththePIDcontrolm

5、ethodonthebasisoftheattitudecontrollaw.Putforwardschedulestrategyofdifferentcontrollers.Completethenonlinearsimulationofattitudecontrol,speedcontrolandconversionprocessaroundthewholeconversioncorridorofsmallunmannedtiltrotoraircraft.Keywords:tiltrotorair

6、craft,flightdynamicsmodel,H∞loopshapingcontrol,conversionsimulation,nonlinearsimulation.II南京航空航天大学硕士学位论文目录第一章绪论...............................................................................................................................11.1研究的意义和目的....

7、........................................................................................................11.2国内外发展概况................................................................................................................11.3飞行力学建模.................

8、...................................................................................................51.4飞行控制...................................................................................................................