fr.cnes.sirius.patrius.wrenches

Interface DragWrenchSensitive

All Known Implementing Classes:

AeroWrenchModel

public interface DragWrenchSensitive

Interface to represent solar drag wrench sensitive vehicles

Since:

2.1

Version:

$Id $

Author:

Rami Houdroge

Method Summary

Modifier and Type	Method and Description
Wrench	dragWrench(SpacecraftState state, double density, Vector3D relativeVelocity) Compute the torque due to radiation pressire.
Wrench	dragWrench(SpacecraftState state, double density, Vector3D relativeVelocity, Vector3D origin, Frame frame) Compute the torque due to radiation pressire.

Method Detail

dragWrench

Wrench dragWrench(SpacecraftState state,
                  double density,
                  Vector3D relativeVelocity)
           throws PatriusException

Compute the torque due to radiation pressire.

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

Parameters:

state - current state information: date, kinematics, attitude

density - atmospheric density at spacecraft position

relativeVelocity - relative velocity of atmosphere with respect to spacecraft, 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

dragWrench

Wrench dragWrench(SpacecraftState state,
                  double density,
                  Vector3D relativeVelocity,
                  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.

Parameters:

state - current state information: date, kinematics, attitude

density - atmospheric density at spacecraft position

relativeVelocity - relative velocity of atmosphere with respect to spacecraft, 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