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

Apr 07, 2023 •164 likes •276 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)

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) • Web (plate) The web performs the diagonal • function
Bending deformation Assume: wing clamped 4 1 @1 - little deformation @4 - strong deformation 4 1 Solutions: • Diagonal elements • Or better: sheets
Spar Lay-Out auxiliary spar false spar 3 spars
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
Spar types
Built-up Spars: Extrusion
Built-up Spars: Sheet Metal Forming

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