Path: ACPro/Newtonian
% Compute the static angle of attack to balance gravity. This routine requires mks units because gravity is defined internally. fErr gives you the error at the end of the iterations by fzero. lift is optional. If not added it will balance the lift against gravity. Lift is defined as along z in the body frame. Type NewtonianAlphaFromCAD for a demo of X-15 Flight 91. The demo uses x15.obj. -------------------------------------------------------------------------- Form: [alpha, fErr] = NewtonianAlphaFromCAD( uMag, rho, g, mass, lift ) -------------------------------------------------------------------------- ------ Inputs ------ uMag (1,1) Magnitude of the velocity (m/s) rho (1,1) Density (kg/m^3) g (.) CAD data structure mass (1,1) Vehicle mass (kg) lift (1,1) Desired lift (N) ------- Outputs ------- alpha (1,:) Angle of attack to balance gravity (rad) fErr (3,1) Force error -------------------------------------------------------------------------- Reference: X-15 Flight 91, http://en.wikipedia.org/wiki/X-15_Flight_91 http://www.whiteeagleaerospace.com/blog/2009/08/24/the-highest-x-15-flight/ --------------------------------------------------------------------------
AC: ACCoord/UFromAlphaBeta AC: ACData/ACTConstants ACPro: Newtonian/NewtonianForceFromCAD AerospaceUtils: AeroData/AtmData AerospaceUtils: AtmosphericCalculations/AtmDens2 AerospaceUtils: AtmosphericCalculations/AtmJ70 AerospaceUtils: AtmosphericCalculations/BaromExp AerospaceUtils: AtmosphericCalculations/DiffusionExp AerospaceUtils: CAD/AutoCADColor AerospaceUtils: CAD/BinaryToString AerospaceUtils: CAD/CreateComponent AerospaceUtils: CAD/DeviceProperties AerospaceUtils: CAD/GenericProperties AerospaceUtils: CAD/LoadCAD AerospaceUtils: ComponentModels/AntennaPatch AerospaceUtils: ComponentModels/ArrayPatch AerospaceUtils: ComponentModels/CameraModel AerospaceUtils: ComponentModels/HallThrusterModel AerospaceUtils: ComponentModels/NuclearReactorModel AerospaceUtils: ComponentModels/REAModel AerospaceUtils: ComponentModels/RWAModel AerospaceUtils: ComponentModels/StarCameraModel AerospaceUtils: Coord/ECIToEF AerospaceUtils: Coord/IntersectPlanet AerospaceUtils: Coord/QIToBDot AerospaceUtils: Coord/QLVLH AerospaceUtils: Coord/R2LatLon CubeSat: Power/SolarCellPower CubeSat: Simulation/CubeSatAero CubeSat: Simulation/CubeSatEnvironment CubeSat: Simulation/CubeSatRadiationPressure CubeSat: Simulation/RHSCubeSat CubeSat: Utilities/CubeSatAttitude CubeSat: Utilities/CubeSatFaces CubeSat: Utilities/CubeSatModel CubeSat: Visualization/DrawCubeSat CubeSat: Visualization/GroundTrack FormationFlying: Help/HelpSystem Orbit: OrbitCoord/ConvertNORAD Orbit: OrbitCoord/SLR Orbit: OrbitMechanics/NORAD Orbit: OrbitMechanics/NORADToEl Orbit: OrbitMechanics/PropagateTLE Orbit: OrbitMechanics/RVOrbGen Orbit: Visualization/OrbTrack SC: Actuator/FrictionSmooth SC: Actuator/RWA SC: Actuator/SingleAxisDrive SC: BasicOrbit/CP2I SC: BasicOrbit/E2M SC: BasicOrbit/E2Nu SC: BasicOrbit/El2RV SC: BasicOrbit/M2E SC: BasicOrbit/M2EApp SC: BasicOrbit/M2EEl SC: BasicOrbit/M2EHy SC: BasicOrbit/M2Nu SC: BasicOrbit/M2NuPb SC: BasicOrbit/Nu2E SC: BasicOrbit/Nu2M SC: BasicOrbit/OrbRate SC: BasicOrbit/Period SC: BasicOrbit/RV2El SC: BasicOrbit/RVFromKepler SC: Disturbances/GravityGradientFromR SC: Disturbances/OpticalSurfaceProperties SC: Disturbances/SolarF SC: Environs/BDipole SC: Environs/SolarFluxPrediction SC: Ephem/ECIToPlanet SC: Ephem/EOfE SC: Ephem/EarthNut SC: Ephem/EarthPre SC: Ephem/EarthRot SC: Ephem/EarthRte SC: Ephem/Eclipse SC: Ephem/GMSTime SC: Ephem/MSidDay SC: Ephem/MoonRot SC: Ephem/Moons SC: Ephem/NutDelta SC: Ephem/ObOfE SC: Ephem/SunV1 SC: Ephem/TruEarth SC: Hardware/FloatToWord SC: Hardware/WordToFloat SC: MagneticControl/MagneticTorquer SC: SCData/sCTConstants SC: SCMat/EarthMR SC: SCMat/SolarFluxPredictions SC: Visualization/PlotPlanet SCPro: MannedVehicle/ISSOrbit SCPro: ProActuators/SingleAxisLinearDrive SCPro: ProSensors/GPSReceiver SCPro: ProSensors/GPSSatellite SCPro: ProSensors/RangeMeasurement Common: Atmosphere/StdAtm Common: CommonData/Constants Common: CommonData/Sosumi Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: ComponentModels/Box Common: ComponentModels/Frustrum Common: ComponentModels/GeomPatch Common: ComponentModels/Triangle Common: Control/C2DZOH Common: Database/Constant Common: FileUtils/FindDirectory Common: FileUtils/GetFileRoot Common: FileUtils/GetFileSuffix Common: GUIs/MessageQueue Common: General/CellToMat Common: General/CloseFigure Common: General/DeBlankLT Common: General/DeleteCell Common: General/DispWithTitle Common: General/FSWClock Common: General/IntToBinary Common: General/IsValidField Common: General/ListCases Common: General/MatToCell Common: General/ProcessTag Common: General/StringMatch Common: General/Watermark Common: Graphics/AddFillToPlots Common: Graphics/Axis3D Common: Graphics/DrawVertices Common: Graphics/Ellipsd Common: Graphics/Map Common: Graphics/Mesh2 Common: Graphics/NPlot Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/Plot3D Common: Graphics/PltStyle Common: Graphics/Polygon Common: Graphics/PolygonProps Common: Graphics/TimeLabl Common: Graphics/TitleS Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Common: MassProperties/AddMass Common: MassProperties/IC623X3 Common: MassProperties/Inertias Common: MassProperties/Volumes Common: Quaternion/Mat2Q Common: Quaternion/Q2Mat Common: Quaternion/QForm Common: Quaternion/QMult Common: Quaternion/QTForm Common: Quaternion/QZero Common: Quaternion/U2Q Common: Time/DTAToDTS Common: Time/DTSToDTA Common: Time/Date2DN Common: Time/Date2JD Common: Time/JD2000 Common: Time/JD2Array Common: Time/JD2DN Common: Time/JD2Date Common: Time/JD2T Common: Time/JDToMidnight Common: Time/T2JD Math: Geometry/Perpendicular Math: Linear/Cross Math: Linear/Dot Math: Linear/DupVect Math: Linear/Mag Math: Linear/Skew Math: Linear/SkewSq Math: Linear/SkewSymm Math: Linear/Unit Math: MathUtils/R2P5 Math: Trigonometry/ACosD Math: Trigonometry/CosD Math: Trigonometry/SinD
Back to the ACPro Module page