Path: CubeSat/Demos/Simulation
% Demonstrate a CubeSat attitude and power system dynamics.
This simulation includes drag and radiation pressure. The only actuator
available for attitude is magnetic torquers, which is modeled as a
dipole. Performs an animation at the end which may take a few minutes.
The satellite is initialized pointing to the Earth with a rotation equal
to orbit rate, to nominally maintain that pointing. The z body axis is
pointed towards the Earth (nadir).
Things to try:
1. Turn surface disturbances off by uncommenting the line setting
d.surfData to empty; notice that the altitude no longer drops.
2. Initialize the battery charge b0 to zero
3. Comment out or change the fixed dipole in the for loop
4. Try a 1U instead of a 3U
Since version 8.
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See also AnimQ, QForm, Plot2D, TimeLabl, RK4, Skew, Date2JD,
InertiaCubeSat, CubeSatAero, RHSCubeSat, CubeSatFaces, BDipole,
SolarFluxPrediction
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%
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Copyright (c) 2009 Princeton Satellite Systems, Inc.
All rights reserved.
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AeroUtils: Coord/QLVLH Common: Graphics/Figui Common: Graphics/Plot2D Common: Graphics/TimeLabl Common: Quaternion/AnimQ Common: Quaternion/QForm Common: Quaternion/QMult Common: Quaternion/QPose Common: Time/Date2JD CubeSat: AttitudeControl/InertiaCubeSat CubeSat: Simulation/CubeSatAero CubeSat: Simulation/CubeSatRadiationPressure CubeSat: Simulation/RHSCubeSat CubeSat: Utilities/CubeSatFaces CubeSat: Visualization/GroundTrack Math: Integration/RK4 Math: Linear/Mag Math: Linear/Skew SC: BasicOrbit/El2RV SC: BasicOrbit/OrbRate SC: BasicOrbit/Period SC: BasicOrbit/PltOrbit SC: Environs/BDipole SC: Environs/SolarFluxPrediction
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