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	# an event that will determine that the maneuver will occur;		# an event that will determine that the maneuver will occur;
	# three components, corresponding to the velocity increment;		# three components, corresponding to the velocity increment;
	# the specific impulse in order to be able to calculate the mass decrease due to the maneuver (we do not use here the [{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]);		# the specific impulse in order to be able to calculate the mass decrease due to the maneuver (we do not use here the [{{JavaDoc4.1}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]);
	# as a consequence of the mass evolution, a [{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank).		# as a consequence of the mass evolution, a [{{JavaDoc4.1}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank).

	Be careful that, when the maneuver direction is expressed in the vehicle frame, <u>it will be mandatory to define an attitude when propagating the orbit</u> !		Be careful that, when the maneuver direction is expressed in the vehicle frame, <u>it will be mandatory to define an attitude when propagating the orbit</u> !
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	'''Code examples:'''		'''Code examples:'''
	* [[~~ImpulsiveManeuverVehicleFrame~~\|Impulsive maneuver defined versus a vehicle frame]]		* [[ImpulsiveManeuverVehicleFrame_4.1\|Impulsive maneuver defined versus a vehicle frame]]
	* [[~~ImpulsiveManeuverSpecificFrame~~\|Impulsive maneuver defined versus a specific frame (GCRF)]]		* [[ImpulsiveManeuverSpecificFrame_4.1\|Impulsive maneuver defined versus a specific frame (GCRF)]]
	* [[~~ImpulsiveManeuverLOFFrame~~\|Impulsive maneuver defined versus a LOF frame (TNW)]]		* [[ImpulsiveManeuverLOFFrame_4.1\|Impulsive maneuver defined versus a LOF frame (TNW)]]

	== Continuous maneuvers ==		== Continuous maneuvers ==
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	# information about the start and the end of the maneuver		# information about the start and the end of the maneuver
	# the thrust direction		# the thrust direction
	# the thrust level and the specific impulse via [{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]		# the thrust level and the specific impulse via [{{JavaDoc4.1}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]
	# as a consequence of the mass evolution, a [{{~~PathCurrentJavaDoc~~}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank)		# as a consequence of the mass evolution, a [{{JavaDoc4.1}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank)

	'''Code examples:'''		'''Code examples:'''
	* [[~~ContinuousManeuverByDuration~~\|Continuous maneuver defined in duration]]		* [[ContinuousManeuverByDuration_4.1\|Continuous maneuver defined in duration]]
	* [[~~ContinuousManeuverByEvents~~\|Continuous maneuver defined by events]]		* [[ContinuousManeuverByEvents_4.1\|Continuous maneuver defined by events]]

	== Sequence of maneuvers ==		== Sequence of maneuvers ==
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	In the example below, we have taken the impulsive maneuver build in the [[#Impulsive maneuvers\|Impulsive maneuvers tutorial ]] and the continuous maneuver taken from the [[#Continuous maneuvers\|Continuous maneuvers tutorial]] , putting them together in a sequence.		In the example below, we have taken the impulsive maneuver build in the [[#Impulsive maneuvers\|Impulsive maneuvers tutorial ]] and the continuous maneuver taken from the [[#Continuous maneuvers\|Continuous maneuvers tutorial]] , putting them together in a sequence.

	'''Code example:''' [[~~SequenceOfManeuvers~~\|Sequence of maneuvers]]		'''Code example:''' [[SequenceOfManeuvers_4.1\|Sequence of maneuvers]]

	[[Category:Tutorials 4.1]]		[[Category:Tutorials 4.1]]

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== Impulsive maneuvers ==

This kind of maneuver consists in modelizing a maneuver as an instantaneous modification of the velocity. So, to define it, we must set, at least:
# an event that will determine that the maneuver will occur;
# three components, corresponding to the velocity increment;
# the specific impulse in order to be able to calculate the mass decrease due to the maneuver (we do not use here the [{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]);
# as a consequence of the mass evolution, a [{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank).

Be careful that, when the maneuver direction is expressed in the vehicle frame, <u>it will be mandatory to define an attitude when propagating the orbit</u> !

In the example below, we will define a 20 m/s ΔV activated at the apogee of the orbit.

'''Code examples:'''
* [[ImpulsiveManeuverVehicleFrame|Impulsive maneuver defined versus a vehicle frame]]
* [[ImpulsiveManeuverSpecificFrame|Impulsive maneuver defined versus a specific frame (GCRF)]]
* [[ImpulsiveManeuverLOFFrame|Impulsive maneuver defined versus a LOF frame (TNW)]]

== Continuous maneuvers ==

This time, a continuous thrust maneuver is no more considered as an impulsive one but as a more realistic one with a given duration. So to define it, we must set, at least:
# information about the start and the end of the maneuver
# the thrust direction
# the thrust level and the specific impulse via [{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/assembly/properties/PropulsiveProperty.html PropulsiveProperty]
# as a consequence of the mass evolution, a [{{PathCurrentJavaDoc}}/fr/cnes/sirius/patrius/assembly/models/MassModel.html MassModel] and the part of this model where we will use ergols mass (here a specific tank)

'''Code examples:'''
* [[ContinuousManeuverByDuration|Continuous maneuver defined in duration]]
* [[ContinuousManeuverByEvents|Continuous maneuver defined by events]]

== Sequence of maneuvers ==

Such a sequence allows to group several maneuvers (impulsive or continuous ones) in a single object synthetizing a maneuver strategy. In fact, it is actually very simple to build it once each maneuver has been defined. We only have:
# to set a value in seconds for the minimum allowed time between a continuous maneuver and the next maneuver
# to set a value in seconds for the minimum allowed time between an impulse maneuver and the next maneuver
# to add each maneuver by using the <font color=#4169E1>add()</font> method

In the example below, we have taken the impulsive maneuver build in the [[#Impulsive maneuvers|Impulsive maneuvers tutorial ]] and the continuous maneuver taken from the [[#Continuous maneuvers|Continuous maneuvers tutorial]] , putting them together in a sequence.

'''Code example:''' [[SequenceOfManeuvers|Sequence of maneuvers]]

[[Category:Tutorials 4.1]]

Tutorials 4.1 Maneuvers - Historique des versions

Admin le 20 décembre 2018 à 15:40

Admin : Page créée avec « == Impulsive maneuvers == This kind of maneuver consists in modelizing a maneuver as an instantaneous modification of the velocity. So, to define it, we must set, at leas... »

Admin : Page créée avec « == Impulsive maneuvers == This kind of maneuver consists in modelizing a maneuver as an instantaneous modification of the velocity. So, to define it, we must set, at leas... »