controlSurfaceHingePointType

The hinge point lies in the section of the wing at the leading edge position <etaLE> of the border. Through the point of the chord surface of the component segment at this η and at <hingeXsi>, a straight line runs along the normal of the chord surface of the component segment; the hinge point lies on this line at the relative height <hingeRelHeight> between the lower (0) and the upper (1) surface of the wing, and is then moved by <translation>:

P_hinge = P_lower + h (P_upper - P_lower) + t

where P_lower and P_upper are the points of the lower and the upper surface on the line, h the relative height and t the translation in the wing coordinate system. <hingeXsi> and <hingeRelHeight> range from 0 to 1; <translation> can move the hinge point out of the wing, e.g. below it for a flap on a track.

Section of a wing at the inner border of a flap: the hinge point at hingeXsi 0.75 and hingeRelHeight 0.2 on the line between lower and upper surface, and the flap at control parameter 0 (undeflected), 0.5 (rotated by 10 degrees, hinge points moved 0.2 m back and 0.05 m down) and 1 (30 degrees, 0.5 m back, 0.15 m down)

The figure shows the hinge point at the inner border of the flap of the example in controlSurfacesType.

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.
`hingeXsi`	`doubleBaseType`	[1..1] required	Chordwise position of the hinge point
`hingeRelHeight`	`doubleBaseType`	[1..1] required	Relative height of the hinge point between the lower (0) and the upper (1) surface of the wing
`translation`	`pointType`	[0..1] optional	Translation of the hinge point along the axes of the wing coordinate system [m]

Used by

In a dataset · 18 paths

In the schema · 2 declarations

Type	Name
`controlSurfacePathType`	`innerHingePoint`
`controlSurfacePathType`	`outerHingePoint`