Spars Wing Structures Aerospace Structures Function of spars - - PowerPoint PPT Presentation

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Apr 07, 2023 164 likes •279 views

Spars Wing Structures Aerospace Structures Function of spars Aerodynamic forces (Lift) create Carry wing bending loads bending Spar Function The basic form is the I-beam. The spar consists of Spar caps/girders (flanges)

SLIDE 1

Spars

Wing Structures

Aerospace Structures

SLIDE 2

Function of spars

Aerodynamic forces (Lift) create bending Carry wing bending loads

SLIDE 3

Spar Function

The basic form is the I-beam.
The spar consists of
Spar caps/girders (flanges)
Web (plate)
The web performs the diagonal

function

SLIDE 4

Bending deformation

Assume: wing clamped @1 - little deformation @4 - strong deformation Solutions:

Diagonal elements
Or better: sheets

1 4

SLIDE 5

auxiliary spar false spar 3 spars

Spar Lay-Out

SLIDE 6

SLIDE 7

Spar Design

The forces are greater at the root Þ the spar must be thicker (difficult with extruded spar caps)

Solution: Built up adhesive bonded sheet metal

SLIDE 8

Spar types

SLIDE 9

Built-up Spars: Extrusion

SLIDE 10