Package org.orekit.forces.maneuvers.propulsion

Class ProfileThrustPropulsionModel

java.lang.Object

org.orekit.forces.maneuvers.propulsion.ProfileThrustPropulsionModel

All Implemented Interfaces:

PropulsionModel, ThrustPropulsionModel, EventDetectorsProvider, ParameterDriversProvider

public class ProfileThrustPropulsionModel
extends Object
implements ThrustPropulsionModel

Thrust propulsion model based on segmented profile.

Since:

12.0

Author:

Luc Maisonobe

Field Summary

Fields inherited from interface org.orekit.propagation.events.EventDetectorsProvider

DATATION_ACCURACY

Constructor Summary

Constructors

Constructor	Description
ProfileThrustPropulsionModel(TimeSpanMap<PolynomialThrustSegment> profile, double isp, Control3DVectorCostType control3DVectorCostType, String name)	Generic constructor.

Method Summary

Modifier and Type	Method	Description
Control3DVectorCostType	getControl3DVectorCostType()	Get the control vector's cost type.
Stream<EventDetector>	getEventDetectors()	Get the discrete events related to the model.
<T extends CalculusFieldElement<T>> Stream<FieldEventDetector<T>>	getFieldEventDetectors(Field<T> field)	Get the discrete events related to the model.
<T extends CalculusFieldElement<T>> T	getFlowRate(FieldSpacecraftState<T> s, T[] parameters)	Get the flow rate (kg/s).
double	getFlowRate(SpacecraftState s)	Get the flow rate (kg/s).
double	getFlowRate(SpacecraftState s, double[] parameters)	Get the flow rate (kg/s).
String	getName()	Get the maneuver name.
List<ParameterDriver>	getParametersDrivers()	Get the drivers for parameters.
<T extends CalculusFieldElement<T>> FieldVector3D<T>	getThrustVector(FieldSpacecraftState<T> s, T[] parameters)	Get the thrust vector in spacecraft frame (N).
Vector3D	getThrustVector(SpacecraftState s)	Get the thrust vector in spacecraft frame (N).
Vector3D	getThrustVector(SpacecraftState s, double[] parameters)	Get the thrust vector in spacecraft frame (N).

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.orekit.propagation.events.EventDetectorsProvider

getEventDetectors, getFieldEventDetectors

Methods inherited from interface org.orekit.utils.ParameterDriversProvider

getNbParametersDriversValue, getParameterDriver, getParameters, getParameters, getParameters, getParameters, getParametersAllValues, getParametersAllValues, isSupported

Methods inherited from interface org.orekit.forces.maneuvers.propulsion.PropulsionModel

init, init

Methods inherited from interface org.orekit.forces.maneuvers.propulsion.ThrustPropulsionModel

getAcceleration, getAcceleration, getDirection, getIsp, getMassDerivatives, getMassDerivatives

Constructor Detail

ProfileThrustPropulsionModel

public ProfileThrustPropulsionModel(TimeSpanMap<PolynomialThrustSegment> profile,
                                    double isp,
                                    Control3DVectorCostType control3DVectorCostType,
                                    String name)

Generic constructor.

Parameters:

profile - thrust profile (N)

isp - specific impulse (s)

control3DVectorCostType - control vector's cost type

name - name of the maneuver

Method Detail

getName

public String getName()

Get the maneuver name.

Specified by:

getName in interface PropulsionModel

Returns:

the maneuver name

getControl3DVectorCostType

public Control3DVectorCostType getControl3DVectorCostType()

Get the control vector's cost type.

Specified by:

getControl3DVectorCostType in interface PropulsionModel

Returns:

control cost type

getThrustVector

public Vector3D getThrustVector(SpacecraftState s)

Get the thrust vector in spacecraft frame (N).

Specified by:

getThrustVector in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

Returns:

thrust vector in spacecraft frame (N)

getFlowRate

public double getFlowRate(SpacecraftState s)

Get the flow rate (kg/s).

Specified by:

getFlowRate in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

Returns:

flow rate (kg/s)

getThrustVector

public Vector3D getThrustVector(SpacecraftState s,
                                double[] parameters)

Get the thrust vector in spacecraft frame (N).

Here the thrust vector does not depend on parameters

Specified by:

getThrustVector in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

thrust vector in spacecraft frame (N)

getFlowRate

public double getFlowRate(SpacecraftState s,
                          double[] parameters)

Get the flow rate (kg/s).

Here the flow rate does not depend on parameters

Specified by:

getFlowRate in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

flow rate (kg/s)

getThrustVector

public <T extends CalculusFieldElement<T>> FieldVector3D<T> getThrustVector(FieldSpacecraftState<T> s,
                                                                            T[] parameters)

Get the thrust vector in spacecraft frame (N).

Here the thrust vector does not depend on parameters

Specified by:

getThrustVector in interface ThrustPropulsionModel

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

thrust vector in spacecraft frame (N)

getFlowRate

public <T extends CalculusFieldElement<T>> T getFlowRate(FieldSpacecraftState<T> s,
                                                         T[] parameters)

Get the flow rate (kg/s).

Here the flow rate does not depend on parameters

Specified by:

getFlowRate in interface ThrustPropulsionModel

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

flow rate (kg/s)

getEventDetectors

public Stream<EventDetector> getEventDetectors()

Get the discrete events related to the model.

This method is not intended to be called several time, only once by a propagator, as it has the side effect of rebuilding the events detectors when called..

The single detector returned triggers Action.RESET_DERIVATIVES events at every thrust segments boundaries.

Specified by:

getEventDetectors in interface EventDetectorsProvider

Specified by:

getEventDetectors in interface PropulsionModel

Returns:

stream of event detectors

getFieldEventDetectors

public <T extends CalculusFieldElement<T>> Stream<FieldEventDetector<T>> getFieldEventDetectors(Field<T> field)

Get the discrete events related to the model.

This method is not intended to be called several time, only once by a propagator, as it has the side effect of rebuilding the events detectors when called..

The single detector returned triggers Action.RESET_DERIVATIVES events at every thrust segments boundaries.

Specified by:

getFieldEventDetectors in interface EventDetectorsProvider

Specified by:

getFieldEventDetectors in interface PropulsionModel

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

field - field to which the state belongs

Returns:

stream of event detectors

getParametersDrivers

public List<ParameterDriver> getParametersDrivers()

Description copied from interface: ParameterDriversProvider

Get the drivers for parameters.

Specified by:

getParametersDrivers in interface ParameterDriversProvider

Returns:

drivers for parameters