A mathematical model of a single main rotor helicopter for piloted simulation.pdf

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1、NASATechnicalMemorandum8428111iIAMathematicalModelofaSingle!MainRotorHelicopterforPilotedSimulationPeterD.Talbot,BruceE.Tinling,WilliamA.Decker,andRobertT.N.ChentSeptember1982NASANationalAeronauticsandSpaceAdministration...NASATechnicalMemorandum84283AMathematicalModel

2、ofaSingleMainRotorHelicopterforPilotedSimulationPeterD.TalbotBruceE.TinlingWilliamA.DeckerRobertT.N.Chen,AmesResearchCenter,Moffett,Field,CaliforniaNationalAeronauticsandSpaceAdministrationAmesResearchCenterMoffettFieldCalifornia94035CONTENTSPageSuMMAEtY................

3、...................1INTRODUCTION................................1I.SIMULATIONMODEL..............................Mainrotor...............................00Tailrotor...............................rEmpennage...............................IFuselage..........................

4、......RotorRotationalDegreeofFreedomandRPMGoverning..........c,ControlSystems............................AtmosphericTurbulence.........................LinearizedSix-Degree-of-FreedomModel.................APPENDICESANotation..............................9BAxissystems....

5、........................13CMainRotorFlappingDynamicsandForceandMomentCalculation....15DTailRotorFlappingandForceCalculation..............23EEmpennageForcesandMoments....................28FCalculationofFuselageForcesandMoments.............32GRPMGovernor..................

6、..........35HCockpitControlsandCyclicControlPhasing.............37ILinearizedSix-Degree-of-FreedomRepresentationofHelicopterDynamics.............................39JConfigurationDescriptionRequirements...............41REFERENCES.................................46iiikTABL

7、ESPage1-1ElementsoftheLinearizedEquationsofMotion.............40IJ-1ConfigurationDescriptionRequirements.................42VFIGURESPage1BlockDiagramShowingPrincipalElementsofSingleRotorHelicopterModel................................2TypicalVariationofEmpennageLiftandDra

8、gCoefficients.......53BlockDiagramofRPMGovernor.....................634StructureofControlSystemModel..........