GPVehicle : Différence entre versions

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''<font color=#FF0000>Note: we need the shape model previously defined</font>''
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''<font color=#FF0000>Note #1: we need the shape model previously defined</font>''
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''<font color=#FF0000> Note #2: for the previous '''<font color=#FF0000>V1.3(.1)</font>''' versions, it was mandatory to use the specific <font color=#556B2F>'''GENOPUS'''</font> [{{CurrentServer}}/uploads/JavaDocs/V1.3.1/fr/cnes/genopus/nonWidget/vehicle/geometry/CustomAerodynamicProperties.html CustomAerodynamicProperties] class.</font>''
  
 
=== Radiative properties initialization ===
 
=== Radiative properties initialization ===

Version du 9 octobre 2018 à 15:04

How to call it

For using the GPVehicle class, the developer has only to create such an object with these two possibilities:

  • With no vehicle initialization
veh = new GPVehicle("My Vehicle");
  • Or, if we want to initialize the widget with a predefined vehicle:
final CustomVehicle vehicle = new Vehicle(…);
veh = new GPVehicle("My Vehicle", vehicle);

Since the V2.0 version (and thus the [PATRIUS] V4.1.1), it is now possible to use directly the Vehicle class. So, it is possible to search in [PATRIUS] documentation how it is possible to initialize such an object. We have then to instantiate this class using all the previous sub-objects described in the following paragraphs.

Note that for the previous V1.3(.1) versions, it was mandatory to use the specific GENOPUS CustomVehicle class.

Dry mass initialization

// DRY MASS
final double dryMass = 1000.;
MassProperty dryMassProperty = new MassProperty(dryMass);

Propulsive properties initialization

// PROPULSION
 
final ArrayList<PropulsiveProperty> enginesList = new ArrayList<PropulsiveProperty>();
PropulsiveProperty prop1 = new PropulsiveProperty(1000., 320.);
prop1.setPartName("OCS");
enginesList.add(prop1);
PropulsiveProperty prop2 = new PropulsiveProperty(270., 150.);
prop2.setPartName("ACS");
enginesList.add(prop2);
 
final ArrayList<TankProperty> fuelTankList = new ArrayList<TankProperty>();
TankProperty tank = new TankProperty(500.);
tank.setPartName("TANK");
fuelTankList.add(tank);

Note that for the previous V1.3(.1) versions, it was mandatory to use the specific GENOPUS CustomEngine and CustomFuelTank classes.

Shape characteristics initializaton

// SHAPE (HERE PARALLELEPIPED + SOLAR PANELS)
final RightParallelepiped parall = new RightParallelepiped(4.0, 1.0, 2.0);
final RightParallelepiped solarPanels = new RightParallelepiped(10.0, 0.0, 0.0);
VehicleSurfaceModel vehicleRefSurface = new VehicleSurfaceModel(parall, solarPanels);

Note that for the previous V1.3(.1) versions, it was mandatory to use the specific GENOPUS classes for shape (as for example CustomParallelepiped as well as the CustomVehicleSurfaceModel class.

Aerodynamic properties initialization

// AERODYNAMIC PROPERTIES (CONSTANT COEFFICIENTS)
final double cd = 2.0;
final double cl = 0.;
final CustomAerodynamicProperties aerodynamicProperties =
   new CustomAerodynamicProperties(vehicleRefSurface, cd, cl);

Note #1: we need the shape model previously defined

Note #2: for the previous V1.3(.1) versions, it was mandatory to use the specific GENOPUS CustomAerodynamicProperties class.

Radiative properties initialization

// RADIATIVE PROPERTIES
final double ka = 1.0;
final double ks = 0.0;
final double kd = 0.0;
final RadiativeProperty rp = new RadiativeProperty(ka, ks, kd);
 
final double absorptionCoef = 1.0;
final double specularCoef = 0.0;
final double diffuseCoef = 0.0;
final RadiativeIRProperty rpIr =
   new RadiativeIRProperty(absorptionCoef, specularCoef, diffuseCoef);
 
final CustomRadiativeProperties radiativeProperties =
   new CustomRadiativeProperties(rp, rpIr, vehicleRefSurface);

Note: we need the shape model previously defined

Vehicle initialization

At last, when all sub-objects are available, we have just to write this: 

final CustomVehicle vehicle =
   new CustomVehicle(dryMassProperty, aerodynamicProperties,
                     radiativeProperties, enginesList, fuelTankList);

Note: of course, possible to put null to some of them except for dry mass properties (a zero value for it will raise a warning as a negative one an error).

Display

With the previous initialization and by clicking on the engines and/or tanks for more information, we will have this display:

GPVehicle.png GPVehiclePropulsiveProperties.png

How to use it

To get a GENOPUS CustomVehicle object, we will just have to call for the getPatriusObject() method as below: 

CustomVehicle vehicle = veh.getPatriusObject();

How it is stored

Here is the XML format for such a vehicle: 

  <Vehicle name="My_Vehicle">
    <Boolean name="hasMassProperties">true</Boolean>
    <MassProperties name="massProperties">
      <Real name="dryMass" unit="kg">1.0E3</Real>
    </MassProperties>
    <Boolean name="hasPropulsiveProperties">true</Boolean>
    <PropulsiveProperties name="PropulsiveProperties">
      <Real name="ergMass" unit="kg">5.0E2</Real>
      <ComponentList name="listOfEngines">
        <!--Amount of items-->
        <Integer name="nbItems">2</Integer>
        <ComponentListItem name="Item_1">
          <Engine name="Engine">
            <String name="name">OCS</String>
            <Real name="isp" unit="s">3.2E2</Real>
            <Real name="thrust" unit="N">1.0E3</Real>
          </Engine>
        </ComponentListItem>
        <ComponentListItem name="Item_2">
          <Engine name="Engine">
            <String name="name">ACS</String>
            <Real name="isp" unit="s">1.5E2</Real>
            <Real name="thrust" unit="N">2.7E2</Real>
          </Engine>
        </ComponentListItem>
      </ComponentList>
      <ComponentList name="listOfTanks">
        <!--Amount of items-->
        <Integer name="nbItems">1</Integer>
        <ComponentListItem name="Item_1">
          <FuelTank name="Fuel_Tank">
            <String name="name">Tank1</String>
            <Real name="propMass" unit="kg">5.0E2</Real>
          </FuelTank>
        </ComponentListItem>
      </ComponentList>
    </PropulsiveProperties>
    <Boolean name="hasAerodynamicProperties">true</Boolean>
    <AerodynamicProperties name="AerodynamicProperties">
      <Real name="dragCoefficient">2.0E0</Real>
      <Real name="liftCoefficient">0.0E0</Real>
    </AerodynamicProperties>
    <Boolean name="hasRadiativeProperties">false</Boolean>
    <Shape name="VehicleShape">
      <String name="shapeType">Parallelepiped</String>
      <String name="shapeDefinitionType">Surface</String>
      <Real name="sx" unit="m^2">4.0E0</Real>
      <Real name="sy" unit="m^2">1.0E0</Real>
      <Real name="sz" unit="m^2">2.0E0</Real>
      <Boolean name="withSolarPanels">false</Boolean>
    </Shape>
  </Vehicle>
Récupérée de « http://genopus.cnes.fr/index.php?title=GPVehicle&oldid=300 »