Package org.orekit.forces.maneuvers.propulsion

Interface PropulsionModel

All Superinterfaces:

EventDetectorsProvider, ParameterDriversProvider

All Known Subinterfaces:

ThrustPropulsionModel

All Known Implementing Classes:

AbstractConstantThrustPropulsionModel, BasicConstantThrustPropulsionModel, ProfileThrustPropulsionModel, ScaledConstantThrustPropulsionModel

public interface PropulsionModel
extends ParameterDriversProvider, EventDetectorsProvider

Generic interface for a propulsion model used in a Maneuver.

Since:

10.2

Author:

Maxime Journot

Field Summary

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

DATATION_ACCURACY

Method Summary

Modifier and Type	Method	Description
<T extends CalculusFieldElement<T>> FieldVector3D<T>	getAcceleration(FieldSpacecraftState<T> s, FieldAttitude<T> maneuverAttitude, T[] parameters)	Get the acceleration of the spacecraft during maneuver and in maneuver frame.
Vector3D	getAcceleration(SpacecraftState s, Attitude maneuverAttitude, double[] parameters)	Get the acceleration of the spacecraft during maneuver and in maneuver frame.
Control3DVectorCostType	getControl3DVectorCostType()	Get the control vector's cost type.
default Stream<EventDetector>	getEventDetectors()	Get the discrete events related to the model.
default <T extends CalculusFieldElement<T>> Stream<FieldEventDetector<T>>	getFieldEventDetectors(Field<T> field)	Get the discrete events related to the model.
<T extends CalculusFieldElement<T>> T	getMassDerivatives(FieldSpacecraftState<T> s, T[] parameters)	Get the mass derivative (i.e.
double	getMassDerivatives(SpacecraftState s, double[] parameters)	Get the mass derivative (i.e.
default String	getName()	Get the maneuver name.
default <T extends CalculusFieldElement<T>> void	init(FieldSpacecraftState<T> initialState, FieldAbsoluteDate<T> target)	Initialization method.
default void	init(SpacecraftState initialState, AbsoluteDate target)	Initialization method.

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, getParametersDrivers, isSupported

Method Detail

init

default void init(SpacecraftState initialState,
                  AbsoluteDate target)

Initialization method. Called in when Maneuver.init(...) is called (from ForceModel.init(...))

Parameters:

initialState - initial spacecraft state (at the start of propagation).

target - date of propagation. Not equal to initialState.getDate().

init

default <T extends CalculusFieldElement<T>> void init(FieldSpacecraftState<T> initialState,
                                                      FieldAbsoluteDate<T> target)

Initialization method. Called in when Maneuver.init(...) is called (from ForceModel.init(...))

Type Parameters:

T - type of the elements

Parameters:

initialState - initial spacecraft state (at the start of propagation).

target - date of propagation. Not equal to initialState.getDate().

Since:

11.1

getEventDetectors

default 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.

Specified by:

getEventDetectors in interface EventDetectorsProvider

Returns:

stream of event detectors

getFieldEventDetectors

default <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.

Specified by:

getFieldEventDetectors in interface EventDetectorsProvider

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

field - field to which the state belongs

Returns:

stream of event detectors

getAcceleration

Vector3D getAcceleration(SpacecraftState s,
                         Attitude maneuverAttitude,
                         double[] parameters)

Get the acceleration of the spacecraft during maneuver and in maneuver frame.

Parameters:

s - current spacecraft state

maneuverAttitude - current attitude in maneuver

parameters - propulsion model parameters

Returns:

acceleration

getAcceleration

<T extends CalculusFieldElement<T>> FieldVector3D<T> getAcceleration(FieldSpacecraftState<T> s,
                                                                     FieldAttitude<T> maneuverAttitude,
                                                                     T[] parameters)

Get the acceleration of the spacecraft during maneuver and in maneuver frame.

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

s - current spacecraft state

maneuverAttitude - current attitude in maneuver

parameters - propulsion model parameters

Returns:

acceleration

getMassDerivatives

double getMassDerivatives(SpacecraftState s,
                          double[] parameters)

Get the mass derivative (i.e. flow rate in kg/s) during maneuver.

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

mass derivative in kg/s

getMassDerivatives

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

Get the mass derivative (i.e. flow rate in kg/s) during maneuver.

Type Parameters:

T - extends CalculusFieldElement<T>

Parameters:

s - current spacecraft state

parameters - propulsion model parameters

Returns:

mass derivative in kg/s

getName

default String getName()

Get the maneuver name.

Returns:

the maneuver name

getControl3DVectorCostType

Control3DVectorCostType getControl3DVectorCostType()

Get the control vector's cost type.

Returns:

control cost type

Since:

12.0