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<ThrustVectorProvider> profile, double isp, String name)	Constructor with default cost type.
ProfileThrustPropulsionModel(TimeSpanMap<ThrustVectorProvider> profile, double isp, Control3DVectorCostType control3DVectorCostType, String name)	Generic constructor.

Method Summary

Modifier and Type	Method	Description
ThrustVectorProvider	getActiveProvider(AbsoluteDate date)	Getter for active provider at input date.
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).
static <T extends ThrustVectorProvider> ProfileThrustPropulsionModel	of(TimeSpanMap<T> profile, double isp, Control3DVectorCostType control3DVectorCostType, String name)	Build with customized profile.

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

getDateDetector, getEventDetectors, getFieldDateDetector, 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<ThrustVectorProvider> profile,
                                    double isp,
                                    String name)

Constructor with default cost type.

Parameters:

profile - thrust profile (N)

isp - specific impulse (s)

name - name of the maneuver

Since:

13.0

ProfileThrustPropulsionModel

public ProfileThrustPropulsionModel(TimeSpanMap<ThrustVectorProvider> 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

Since:

13.0

Method Detail

of

public static <T extends ThrustVectorProvider> ProfileThrustPropulsionModel of(TimeSpanMap<T> profile,
                                                                               double isp,
                                                                               Control3DVectorCostType control3DVectorCostType,
                                                                               String name)

Build with customized profile.

Type Parameters:

T - segment type

Parameters:

profile - thrust profile (N)

isp - specific impulse (s)

name - name of the maneuver

control3DVectorCostType - control vector's cost type

Returns:

propulsion model

Since:

13.0

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

getActiveProvider

public ThrustVectorProvider getActiveProvider(AbsoluteDate date)

Getter for active provider at input date.

Parameters:

date - date

Returns:

active segment

Since:

13.0

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)

getFlowRate

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

Get the flow rate (kg/s).

Specified by:

getFlowRate in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

flow rate (kg/s)

getThrustVector

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

Get the thrust vector in spacecraft frame (N).

Specified by:

getThrustVector in interface ThrustPropulsionModel

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

thrust vector in spacecraft frame (N)

getThrustVector

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

Get the thrust vector in spacecraft frame (N).

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).

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 ThrustVectorProvider 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 ThrustVectorProvider 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()

Get the drivers for parameters.

Specified by:

getParametersDrivers in interface ParameterDriversProvider

Returns:

drivers for parameters