trailingEdgeDeviceType

complexType · extension complexBaseType · all

Movable part at the trailing edge of the wing, e.g. a flap or an aileron

A trailing edge device is defined by its outerShape in the component segment (controlSurfaceOuterShapeTrailingEdgeType); its trailing edge is the trailing edge of the wing. Its path describes how it is deflected (see controlSurfacePathType). wingCutOut defines the part of the wing that is removed for the control surface (controlSurfaceWingCutOutType), and structure its own structure, built like the structure of the wing. tracks and actuators describe the mechanical links to the parent (controlSurfaceTrackTypeType, controlSurfaceActuatorType), and cruiseRollers, interconnectionStruts and zCouplings the links to neighbouring flaps.

Usually, the parent (parentUID) is the component segment. A trailing edge device can also be placed inside another trailing edge device by referencing it as parent, e.g. the rear flap of a double-slotted flap; in this way, flaps with any number of slots can be described.

Example

The flap of the example in controlSurfacesType. Its leading edge is rounded, and it is deflected in three steps; the outer border is defined like the inner one:

<trailingEdgeDevice uID="Wing_flap">
    <name>Inner flap</name>
    <parentUID>Wing_componentSegment</parentUID>
    <outerShape>
        <innerBorder>
            <etaLE>
                <eta>0.14</eta>
                <referenceUID>Wing_componentSegment</referenceUID>
            </etaLE>
            <xsiLE>
                <xsi>0.7</xsi>
                <referenceUID>Wing_componentSegment</referenceUID>
            </xsiLE>
            <leadingEdgeShape>
                <relHeightLE>0.5</relHeightLE>
                <xsiUpperSkin>0.9</xsiUpperSkin>
                <xsiLowerSkin>0.7</xsiLowerSkin>
            </leadingEdgeShape>
        </innerBorder>
        <outerBorder>
        ...
    </outerBorder>
    </outerShape>
    <path>
        <innerHingePoint>
            <hingeXsi>0.75</hingeXsi>
            <hingeRelHeight>0.2</hingeRelHeight>
        </innerHingePoint>
        <outerHingePoint>
            <hingeXsi>0.76</hingeXsi>
            <hingeRelHeight>0.2</hingeRelHeight>
        </outerHingePoint>
        <steps>
            <step>
                <controlParameter>0</controlParameter>
                <hingeLineRotation>0</hingeLineRotation>
            </step>
            <step>
                <controlParameter>0.5</controlParameter>
                <innerHingeTranslation>
                    <x>0.2</x>
                    <y>0</y>
                    <z>-0.05</z>
                </innerHingeTranslation>
                <outerHingeTranslation>
                    <x>0.2</x>
                    <z>-0.05</z>
                </outerHingeTranslation>
                <hingeLineRotation>10</hingeLineRotation>
            </step>
            <step>
                <controlParameter>1</controlParameter>
                <innerHingeTranslation>
                    <x>0.5</x>
                    <y>0</y>
                    <z>-0.15</z>
                </innerHingeTranslation>
                <outerHingeTranslation>
                    <x>0.5</x>
                    <z>-0.15</z>
                </outerHingeTranslation>
                <hingeLineRotation>30</hingeLineRotation>
            </step>
        </steps>
    </path>
</trailingEdgeDevice>
Flap with a leading edge shape and a deflection path in three steps

Attributes

NameTypeConstraintsUseDefaultDescription
@externalDataDirectoryxsd:stringoptionalDirectory of the external data file
@externalDataNodePathxsd:stringoptionalPath of the node inside the external data file
@externalFileNamexsd:stringoptionalName of the external data file
@uIDxsd:IDrequiredUID

Child elements

NameTypeConstraintsOccurrenceHow often the element may appear at this place. The schema writes it as minOccurs and maxOccurs on the declaration.DefaultDescription
allThe children below may appear in any order. Each may appear at most once.
namestringBaseType[1..1] requiredName
descriptionstringBaseType[0..1] optionalDescription
parentUIDstringUIDBaseType[1..1] requiredParent: the component segment or another trailing edge device
outerShapecontrolSurfaceOuterShapeTrailingEdgeType[1..1] requiredOuter shape
wingCutOutcontrolSurfaceWingCutOutType[0..1] optionalCut-out in the wing for the trailing edge device
structurewingComponentSegmentStructureType[0..1] optionalStructure
pathcontrolSurfacePathType[1..1] requiredDeflection path
trackscontrolSurfaceTracksType[0..1] optionalTracks guiding the trailing edge device
actuatorscontrolSurfaceActuatorsType[0..1] optionalActuators that are not part of a track
cruiseRollerscruiseRollersType[0..1] optionalCruise rollers (mid-span stops): small rollers at the leading edge of the flap that keep it within the bending wing in cruise
interconnectionStrutsinterconnectionStrutsType[0..1] optionalInterconnection struts: struts between two neighbouring flaps that carry the loads if an actuator or a flap track fails
zCouplingszCouplingsType[0..1] optionalZ-couplings: elements coupling two neighbouring flaps in z-direction

Used by

In a dataset · 3 paths

In the schema · 1 declaration

TypeName
trailingEdgeDevicesTypetrailingEdgeDevice