Wing Warping System Utilizing Microfiber Composites

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Wing Warping SystemUtilizing Microfiber
Composites

• Group 15
• Lindsay Hardy
• Michael Hays
• Michael Rodriguez
• Joshua Smith

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Wing Analysis

• Goal To better understand flexing under normal
  flight condition
• Use to better position the piezoelectric strips
• Look at the von Mises stress concentrations
• Use in order to avoid overloading the structure
  after modification resulting in failure

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2D Beam

• Started basic with analysis on a 2D beam

Figure 1 Surface Total Displacement m max
2.793e-3 m min 0 m
Figure 2 Surface von Mises stress Pa max
3.383e4 Pa min 0.365 Pa
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3D Modeled Wing

• Since ordered aircraft has yet to arrive
• Obtained basic dimensions from the Great Planes
  web site
• Approximated feature details by scaling pictures
• Length 0.41 m, Width 0.293 m, Height 0.0317 m
• Applied the force of lift as well as a force due
  to drag
• Estimated flying at 1 atm and 30C
• Estimated velocity at 12.192 m/s

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Modeled Wing 3D Results

• Max von Mises stress occurs above at the joint of
  the rib and the fuselage

Figure 3 Slice von Mises stress Pa max
7.375e4 Pa min 235.923 P
Figure 4 Boundary von Mises stress Pa
max 8.0254e4 Pa min 27.593 Pa
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Modeled Wing Results (contd)

• Max displacement occurs at the wing tips trailing
  edge
• In order to limit the point of maximum
  displacement the piezoelectric materials will
  need to counter this flexing
• With a deflection of 7.973mm, the wing only
  flexes about a quarter of its estimated height

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Modeled Wing Results (contd)
Figure 6 Boundary Total displacement m
max 7.973e-3 m min 0 m
Figure 5 Boundary Total displacement m
max 7.973e-3 m min 0 m
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Wing Dynamics

• Flutter control
• 1st Node

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Wing Dynamics

• 2nd Node

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Actuator Modeling

• 2D Model

• 3D Model

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Actuator Modeling

• Accuracy

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Combined MFC Wing Model
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MFC Electrical Configuration
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Pro E of Model
MFC
Signal Regulator
DC-DC Conv.
RC-DC Conv
Receiver
Li-Po Battery
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Pro E of MFC Electrical Configuration
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Pro E Model
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Actual Great Planes Yak 55 beside Pro E model
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Future Plans

• Procure Parts
• Preliminary Construction
• Bench-Top Testing
• Wind Tunnel Testing
• Final Construction
• Flight Testing