Wing box Design Review Presentation E16H

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Presentation Description

This is the wing box desighn review presentation of group E16H. For a first-year project of Aerospace Engineering a wingbox was build and tested until failure. The box was build by my group E16H. Come study Aerospace Engineering at the Delft University of Technology. For more information check: http://www.opendagen.tudelft.nl/ Aerospace Engineering Delft University of Technology

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Presentation Transcript

Wing box Design Review : 

Wing box Design Review AE1200 – Design and Construction AE1200, E16H

Introduction : 

Introduction E16H Goal Outline of presentation

Assignment : 

Assignment Wing box for AMYE Withstand a tip load of 2.5 kN without buckling Withstand a tip load of 5.0 kN without failure Aerospace optimized solution Aluminum Design Criteria Table 1: Material Properties for design (Source: AE1200 reader)

Our vision : 

Our vision Number of stringers Stringer length and position Rib pitch External stiffeners Rivet pitch First thoughts on the wing box design

Our vision : 

Our vision Stringers cope with bending Adding stringers increases the moment of inertia Number of stringers

Slide 6: 

Source: AE1200 reader

Our vision : 

Our vision Bending stress increases linearly from the tip to the root 7 stringers equally spaced over the top panel Stringer length and position

Our vision : 

Our vision Rib pitch

Our vision : 

Our vision Shear stress is constant over the length External stiffeners

Slide 10: 

Source: AE1200 reader

Our vision : 

Our vision Stress unknown Load on material should be equal to load on the rivet Rivet pit becomes 15.53 mm Rivet pitch

Construction : 

Construction Production plan Inventory Constuction skills

Testing : 

Testing Testing equipment Test rig What is measured

Failure process : 

Failure process At 3.8 kN the box started to show buckling Rivets sheared out Buckling Rest of the box remained intact Failure at 5.2 kN

Failure process : 

Failure process Stress strain curve

Analysis : 

Analysis Strain gauges Strain gauge placement What is measured

Analysis : 

Analysis Strain gauge measurements

Recommendations : 

Recommendations Stringers Rivet pitch

Conclusions : 

Conclusions Assignment Tested design Analysis Recommendations