Sail Demos

Directory List

Actuator Control Coordinates
Disturbances Dynamics Graphics
Guidance Integrated Missions
Optimization SailDesigns SailEphem
SailModeling

Actuator

  • MovingMassDemo: Demonstrate computing moving mass positions
  • SailVanesDemo: Demonstrate computing angles for a sail with a pair of vanes.
  • TwoBodyBoom: Demonstrate boom dynamics and control using TBModel/FTB functions.
  • VaneAnglesDemo: Demonstrate VaneAngles for a CAD model
  • VaneSearchDemo: Demonstrate computing angles for a sail with four vanes.

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    Control

  • BallastMass2Axis: Attitude control of a sail using ballast masses in-plane.
  • BoomControl: Demonstrate gimballed boom control.
  • BoomGimbalActuation: Demonstrate gimballed boom actuation with set gimbal commands.
  • BoomQCRDemo: Demonstrate boom dynamics and control using TBModel/FTB functions.
  • VaneControl1Axis: Attitude control of a sail using control vanes.

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    Coordinates

  • McInnesAngles: Demonstrate McInnes' guidance and coordinate functions.
  • QSailDemo: Demonstrate sail reference frames in different orbits.

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    Disturbances

  • CompareSailBillow: Compare the solar pressure force for flat and billowed circular sails.
  • CompareSailOptical: Compare the solar pressure force for ideal and nonideal circular sails.
  • EarthOrbitDisturbances: Demonstrate the solar sail disturbance model in Earth orbit.
  • HelioDisturbances: Demonstrate the solar sail disturbance model in heliocentric orbit.
  • SailForceImperfectMaterial: Compare the solar pressure force for uniform and irregular materials.
  • SailForceWithIncidenceAngle: Compute sail force over incidence angle.
  • SolarForceDemo: Demonstrate the solar pressure force function using a striped sail quadrant.

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    Dynamics

  • AsteroidOrbitDemo: Example orbit propagation problem from an AIAA student challenge.
  • AttitudeDemo: Sail attitude evolution under disturbances. No orbit dynamics.
  • BoomMomentumDemo: Verify momentum conservation and rate adjustment for gimbal commands.
  • LunarHaloSim: Simulate a sail halo about a Lunar Lagrange point. The orbit is unstable.
  • MovingBodyDemo: Demonstrate the moving body attitude RHS.
  • NKPlanetSim: Simulate a non-Keplerian orbit in a cylindrical planet-centered frame.
  • NonKeplerSunSim: Simulate a non-Keplerian sail orbit in a cylindrical sun-centered frame.
  • SailCombinedDemo: Demonstrate combined simulation for a sail orbiting the Earth.
  • SampleOrbitContours: Sail orbit contours.

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    Graphics

  • PatchesDemo: Draw representative patches for a sail rotated by cone/clock angles
  • SailAttitudePlots: Demonstrate sail attitude plots that do not require a CAD model.
  • SailForcePlots: Demonstrate sail force plotting functions.
  • SailSimulationPlots: Demonstrate sail simulation plots
  • ViewSailForceDemo: Demonstrate DrawSailMeshVectors for different sail models.

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    Guidance

  • EarthOrbitLVLH: Earth-orbit sail analysis with sail aligned to LVLH.
  • GeoOptimalDemo: Simulate a geocentric locally optimal trajectory using the control laws
  • HeliopauseSimulation: Planar heliopause mission simulation.
  • HeliopauseWithLaserSimulation: Planar heliopause mission simulation.
  • L1Diamond: L1 Diamond formation
  • LocalOptimalSim: Simulate a heliocentric locally optimal trajectory.
  • OptimalSMADemo: Computes optimal semi-major axis and eccentricity control.
  • SailSMAChangeDemo: Sail SMA change demo

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    Integrated

  • SMAGuidanceWithBoom: Combined guidance and control demo with fixed rate two-body dynamics.

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    Missions

  • EarthMagnetotail: Fly near an invariant parabolic manifold and control to the displaced orbit.
  • GEOGraveyard: Simulate raising to graveyard orbit from GEO.
  • GeoInclinationKite: Simulate inclination change in GEO orbit.
  • LEOCombinedDemo: Demonstrate combined simulation for a sail in a LEO 28.5 degree orbit.
  • LunarHaloDemo: Simulate a solar sail in orbit near the earth and moon.
  • SPICombinedDemo: Demonstrate combined simulation for the Solar Polar Imager mission.
  • SPITrajectoryDemo: Solar Polar Imager demo with JPL optimal trajectory data.
  • ST9CombinedDemo: Demonstrate combined simulation for a sail in ST9 orbit.
  • ST9Orbit: Simulate semi-major axis change in a dawn-dusk sun-synchronous orbit.
  • SunCombinedDemo: Demonstrate combined simulation for a sail in interplanetary orbit.

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    Optimization

  • LocallyOptimalTrajectories: Demonstrate locally optimal sail trajectories. Uses equinoctial elements.
  • NLEqSADemo: Test a nonlinear equation solver for computing cone and clock.
  • OptimizationTestGrid: Do 10 tests on GAOT, simulated annealing and downhill simplex.
  • PlotDeJong: Plot the 5 De Jong functions.
  • PropagationDemo: Orbit propagation test.
  • Sail2DOptimization: Demonstrate the Trajectory optimization function for sails in 2D orbits.
  • Sail3DOptimization: Demonstrate 3D optimization.
  • TrajOptMethodsDemo: Demonstrate additional methods of trajectory optimization

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    SailDesigns

  • BillowedSquareSail: A billowed, square, nonideal sail in the Y/Z plane.
  • Build6USail: Build a 6U Sail.
  • CircularSail: Design a circular nonideal sail with billow using SailMesh.
  • ConeSail: Cone sail model
  • Cosmos1: CAD model of the Cosmos-1 solar sail.
  • ECHOModel: A specular spherical sail, i.e. ECHO-2
  • FlatCP1Sail: A flat, square, nonideal sail in the Y/Z plane, using CP1 properties
  • FlatPlate: A flat, square, specular sail in the Y/Z plane.
  • PlateWithBoom: Design a gimbaled boom specular sail model with two bodies.
  • PlateWithBoomAndVanes: Design a specular sail model with a control boom and vanes.
  • PlateWithMasses: Design a specular (plate) sail model with two transverse control masses.
  • PlateWithVanes: Design a specular (plate) sail model with two control vanes.
  • QuadBillowedSail: A billowed quadrant sail demonstrating SailMesh. Uses CP1 properties.
  • S4Deploy: 40 m Scalable Sail, for deployment analysis.
  • SailWithBoom: Design a gimbaled boom sail model with two bodies.
  • SailWithFourVanes: Design a nonideal sail model with four control vanes.
  • SquareGEOSail: A flat, specular sail for GEO simulations.
  • StripedSail: Design a square sail with four striped quadrants. Uses CP1.

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    SailEphem

  • PlanetDemo: Demonstrate JPL ephemeris for the solar system.

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    SailModeling

  • S4Deployment: S4 (ATK's scalable sail) deployment demo.
  • SailMassAndArea: Sail dimensions as a function of payload mass

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