fr.cnes.sirius.patrius.assembly.models

Class DirectRadiativeWrenchModel

java.lang.Object

fr.cnes.sirius.patrius.assembly.models.DirectRadiativeWrenchModel

All Implemented Interfaces:

RadiationWrenchSensitive

public class DirectRadiativeWrenchModel
extends Object
implements RadiationWrenchSensitive

This class represents a spacecraft capable of computing the wrench caused by solar radiation pressure.

Since:

2.1

Version:

$Id$

Author:

Rami Houdroge

Concurrency :

not thread-safe

Concurrency comment :

class uses internal mutable attributes and frames

Constructor Summary

Constructors

Constructor and Description
DirectRadiativeWrenchModel(Assembly inAssembly) Radiative model (the acceleration is computed from all the sub parts of the vehicle).

Method Summary

Modifier and Type	Method and Description
Wrench	radiationWrench(SpacecraftState state, Vector3D flux) Compute the torque due to radiation pressire.
Wrench	radiationWrench(SpacecraftState state, Vector3D flux, Vector3D origin, Frame frame) Compute the torque due to radiation pressire.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DirectRadiativeWrenchModel

public DirectRadiativeWrenchModel(Assembly inAssembly)

Radiative model (the acceleration is computed from all the sub parts of the vehicle).

Parameters:

inAssembly - The considered vehicle.

Method Detail

radiationWrench

public Wrench radiationWrench(SpacecraftState state,
                              Vector3D flux)
                       throws PatriusException

Compute the torque due to radiation pressire.

The computation includes all spacecraft specific characteristics like shape, area and coefficients.

Specified by:

radiationWrench in interface RadiationWrenchSensitive

Parameters:

state - current state information: date, kinematics, attitude

flux - radiation flux in the same inertial frame as spacecraft orbit

Returns:

spacecraft torque expressed at the mass center in the frame of the main part of the assembly (accounts for attitude)

Throws:

PatriusException - if torque cannot be computed

radiationWrench

public Wrench radiationWrench(SpacecraftState state,
                              Vector3D flux,
                              Vector3D origin,
                              Frame frame)
                       throws PatriusException

Compute the torque due to radiation pressire.

The computation includes all spacecraft specific characteristics like shape, area and coefficients.

Specified by:

radiationWrench in interface RadiationWrenchSensitive

Parameters:

state - current state information: date, kinematics, attitude

flux - radiation flux in the same inertial frame as spacecraft orbit

origin - point in which to express torque

frame - the reference frame

Returns:

spacecraft torque expressed at origin in frame

Throws:

PatriusException - if torque cannot be computed