wallsType

Walls divide the inside of a fuselage or a vessel, e.g. the pressure deck and the aft wall of the bay of the main landing gear, the walls of a cargo compartment, or the walls between the tanks of a vessel. Each wall is a chain of plane faces through points, the wall positions, and reaches from these points to the surface of the fuselage or vessel.

Positions and segments

<wallPositions> lists the points (wallPositionType), all in the coordinate system of the fuselage or vessel. <wallSegments> lists the walls (wallSegmentType); each connects two or more of the points in its own order and extrudes the connection in one direction. Walls may share points, so that they meet along a common edge.

Walls of the bay of the main landing gear behind the wing box. (a) Section at y = 0, seen from the left: the ceiling runs horizontally at z = -0.75 m from the position mlgBayFwd at the rear spar to the position mlgBayAft at x = 15.4 m, and the aft wall runs from there vertically down to the position mlgBayKeel on the skin. (b) Section through the ceiling, seen from behind: both positions of the ceiling at y = 0, z = -0.75 m, the angle phi = 90 degrees from the upward z direction to the extrusion direction towards -y, and the double-sided extrusion towards +y; the ceiling reaches the skin on both sides

The figure shows the walls of the bay of the main landing gear in the example, behind the wing box and below the cabin floor. The ceiling Fuselage_mlgBayCeiling runs at z = −0.75 m from the rear spar at x = 13.25 m to x = 15.4 m, and the aft wall Fuselage_mlgBayAftWall runs from the common position Fuselage_mlgBayAft down to the keel. Both are extruded sideways in both directions, to the skin on either side: (a) shows the section at y = 0, (b) the section through the ceiling, whose two positions both lie at y = 0, z = −0.75 m.

Example

The walls of the bay of the main landing gear:

<walls>
    <wallPositions>
        <wallPosition uID="Fuselage_mlgBayFwd">
            <x>13.25</x>
            <y>0</y>
            <z>-0.75</z>
        </wallPosition>
        <wallPosition uID="Fuselage_mlgBayAft">
            <x>15.4</x>
            <y>0</y>
            <z>-0.75</z>
        </wallPosition>
        <wallPosition uID="Fuselage_mlgBayKeel">
            <x>15.4</x>
            <y>0</y>
            <z>-1.6</z>
        </wallPosition>
    </wallPositions>
    <wallSegments>
        <wallSegment uID="Fuselage_mlgBayCeiling">
            <phi>90</phi>
            <doubleSidedExtrusion>true</doubleSidedExtrusion>
            <structuralWallElementUID>PressureWall</structuralWallElementUID>
            <wallPositionUIDs>
                <wallPositionUID>Fuselage_mlgBayFwd</wallPositionUID>
                <wallPositionUID>Fuselage_mlgBayAft</wallPositionUID>
            </wallPositionUIDs>
        </wallSegment>
        <wallSegment uID="Fuselage_mlgBayAftWall">
            <phi>90</phi>
            <doubleSidedExtrusion>true</doubleSidedExtrusion>
            <structuralWallElementUID>PressureWall</structuralWallElementUID>
            <wallPositionUIDs>
                <wallPositionUID>Fuselage_mlgBayAft</wallPositionUID>
                <wallPositionUID>Fuselage_mlgBayKeel</wallPositionUID>
            </wallPositionUIDs>
        </wallSegment>
    </wallSegments>
</walls>

Walls of the bay of the main landing gear

Attributes

Name	Type	Use	Description
`@externalDataDirectory`	`xsd:string`	optional	Directory of the external file the element was read from, as URI
`@externalDataNodePath`	`xsd:string`	optional	Path of the parent element in the merged dataset, at which the element was inserted from an external file
`@externalFileName`	`xsd:string`	optional	Name of the external file the element was read from

Child elements

Name	Type	OccurrenceHow often the element may appear at this place. The schema writes it as minOccurs and maxOccurs on the declaration.	Description
allThe children below may appear in any order. Each may appear at most once.
`wallPositions`	`wallPositionsType`	[1..1] required	Points through which the walls run
`wallSegments`	`wallSegmentsType`	[1..1] required	Walls

Type	Name
`fuselageStructureType`	`walls`
`vesselStructureType`	`walls`

wallsType

Attributes

Child elements

Used by

In a dataset · 3 paths

In the schema · 2 declarations