wingRibsPositioningType

The ribs of the set are placed on a reference line (ribReference): the leading edge, the trailing edge of the component segment or a spar. A position on that line is given as the relative arc length η along it, measured from its beginning; on a spar this is the η of the spar (wingSparType).

Where the set begins and ends

The first and the last rib of the set stand at the two points given here. Each of them is given in one of three ways:

startEtaXsiPoint and endEtaXsiPoint give the point in the relative coordinates of a segment or of the component segment (etaXsiPointType).
startCurvePoint and endCurvePoint put it on a curve, e.g. at a relative position along a spar (curvePointType).
startSparPositionUID and endSparPositionUID put it on a spar position (sparPositionType), so that the rib follows the spar when the spar position is moved.

A point that does not lie on the reference line is carried onto it by the plane of the rib through that point.

How many ribs

numberOfRibs spreads that many ribs evenly along the reference line, the first at the beginning and the last at the end of the set.
spacing gives the distance between two ribs along the reference line. The first rib stands at the beginning of the set and each further rib one spacing further out, so the last rib of the set is the last one that still fits and may stay short of the end.

Shape of the ribs

ribStart and ribEnd bound each rib in chordwise direction: both are either the UID of a spar or the keyword leadingEdge or trailingEdge. A rib therefore runs from the leading edge or from a spar to another spar or to the trailing edge.
ribRotation turns the ribs about the normal of the chord surface (ribRotationType).
ribCrossingBehaviour says what a rib does where it meets a rib of another set: cross it or end there.

Name	Type	Use	Description
`@externalDataDirectory`	`xsd:string`	optional	Directory of the external data file
`@externalDataNodePath`	`xsd:string`	optional	Path of the node inside the external data file
`@externalFileName`	`xsd:string`	optional	Name of the external data file

Child elements

Name	Type	Constraints	OccurrenceHow often the element may appear at this place. The schema writes it as minOccurs and maxOccurs on the declaration.	Description
sequenceThe children below must appear in exactly this order. Each may repeat as often as its own occurrence allows.
choiceExactly one of the alternatives below may appear, unless the occurrence next to this line says otherwise.
`startEtaXsiPoint`	`etaXsiPointType`		[1..1] required	Beginning of the set, in the relative coordinates of a segment or of the component segment
`startCurvePoint`	`curvePointType`		[1..1] required	Beginning of the set, at a relative position along a curve
`startSparPositionUID`	`stringUIDBaseType`		[1..1] required	Beginning of the set, at a spar position
choiceExactly one of the alternatives below may appear, unless the occurrence next to this line says otherwise.
`endEtaXsiPoint`	`etaXsiPointType`		[1..1] required	End of the set, in the relative coordinates of a segment or of the component segment
`endCurvePoint`	`curvePointType`		[1..1] required	End of the set, at a relative position along a curve
`endSparPositionUID`	`stringUIDBaseType`		[1..1] required	End of the set, at a spar position
`ribStart`	`stringBaseType`		[1..1] required	Forward bound of the ribs: the UID of a spar, leadingEdge or trailingEdge
`ribEnd`	`stringBaseType`		[1..1] required	Aft bound of the ribs: the UID of a spar, leadingEdge or trailingEdge
choiceExactly one of the alternatives below may appear, unless the occurrence next to this line says otherwise.
`spacing`	`doubleBaseType`		[1..1] required	Distance between two ribs along the reference line [m]
`numberOfRibs`	`integerBaseType`		[1..1] required	Number of ribs, spread evenly along the reference line
`ribReference`	`stringBaseType`		[1..1] required	Line along which the ribs are spaced: the UID of a spar, leadingEdge or trailingEdge
`ribCrossingBehaviour`	`stringBaseType`	2 values	[1..1] required	What a rib does where it meets a rib of another set: cross or end
`ribRotation`	`ribRotationType`		[1..1] required	Direction of the ribs

wingRibsPositioningType

Attributes

Child elements

Used by

In a dataset · 12 paths

In the schema · 1 declaration