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Path: AC/Demos/Aircraft
% Simulate the linear and angular states of a rigid body using "AC.m"
Four different geometries are available to choose from.
A rotor may be included or omitted.
The motion is simulated using two different cases.
case 0 -- The origin of the body frame coincides with the CG
case 1 -- The origin of the body frame is translated to a non-CG
point
The inertias for case 0 and case 1 are different, according to the
parallel axis theorem.
The initial angular velocity is different for each case IF the inertia
matrix has non-zero off-diagonal terms.
No aerodynamic forces or torques are considered.
VERIFICATION
============
* The trajectories of both the CG and a non-CG point on the body are
computed for each case, and the errors are plotted.
* The total angular momentum (body + rotors) is plotted.
It should be constant.
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See also QECI, AC, ACInit, @acstate/acstate.m, IConv, QTForm,
TranslateAxes, Constant, TimeGUI, Cross, Dot, Mag, SkewSymm, Unit
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%
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Copyright 2003 Princeton Satellite Systems, Inc.
All rights reserved.
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AC: ACCoord/QECI AC: ACDynamics/AC AC: ACDynamics/ACInit AC: Classes/@acstate/abs.m AC: Classes/@acstate/acstate.m AC: Classes/@acstate/get.m AC: Classes/@acstate/length.m AC: Classes/@acstate/minus.m AC: Classes/@acstate/mrdivide.m AC: Classes/@acstate/mtimes.m AC: Classes/@acstate/plus.m AC: Classes/@acstate/subsasgn.m AC: Classes/@acstate/subsref.m AC: Classes/@acstate/zeros.m Common: Database/Constant Common: Graphics/TimeGUI Common: Quaternion/QTForm Common: Transform/IConv Common: Transform/TranslateAxes Math: Linear/Cross Math: Linear/Dot Math: Linear/Mag Math: Linear/SkewSymm Math: Linear/Unit
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