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ADAM4EVE workshop on Adaptive Ship Hull Forms

ADAM4EVE workshop on Adaptive Ship Hull Forms. June 4 th , 2015 VTT Technical Research Centre of Finland, Espoo. ADAM4EVE workshop on Adaptive Ship Hull Forms. Materials for hull-form adaptation Dr Stephen Boyd University of Southampton. Introduction. Adaptive structures

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ADAM4EVE workshop on Adaptive Ship Hull Forms

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  1. ADAM4EVE workshop on Adaptive Ship Hull Forms June 4th, 2015 VTT Technical Research Centre of Finland, Espoo

  2. ADAM4EVE workshop on Adaptive Ship Hull Forms Materials for hull-form adaptation Dr Stephen Boyd University of Southampton

  3. Introduction • Adaptive structures • Aerodynamics – the automotive industry • Hydrodynamics – the marine industry • What about scale? • Are structural and material solutions available?

  4. Introduction • ADAM4EVE investigated the potential structural and material solutions for the large scale adaptation of ship hull-forms • Two primary modes of adaptation were identified: • Global • Local • The potential solutions were analysed through a simple SWOT analysis

  5. Global adaptation • Positive influence of bulbous bow design on the resistance characteristics of ship hulls • Usually designed for single design speed or maybe a small range of speeds Global - Longitudinal change in bulbous bow Global - Girth change in bulbous bow Global - Vertical pivot of bulbous bow Maisonneuve, J.J., Harries, S., Marzi, J., Raven, H.C., Viviani, U., Piippo, H., Towards optimal design of ship hull shapes, Proc, of the 8th International Marine Design Conference, 2003.

  6. Local Adaptation Local - Adaptable stern flap Local - Adaptable panel in bow or stern region Local - Adaptable Rudder/propeller

  7. Local adaptable panel

  8. Flow resistor concept Un-inflated state Inflated state Inflated actuators Deformed membrane

  9. Flow resistor concept

  10. Flow resistor concept

  11. Flow resistor concept

  12. Technical Progress

  13. Technical Progress

  14. Adaptive rudder

  15. Adaptive concept http://www.petersaircraft.com/A380/Presentation.html

  16. Adaptive rudder

  17. Bi-stable Composites • Finite element models of the influence of the high temperature curing provide theoretical deformation shapes • Material properties and physical dimensions are key

  18. Bi-stable Composites Ansys STL file 3D scanned STL file Difference between numerical and scanned panels (mm)

  19. Bi-stable Composites • Incorrect ply thickness 0.31mm 0.39mm

  20. Bi-stable Composites Pos 2 Pos 1 Pos 3 Pos 4

  21. The Project is funded in the Seventh Framework Programme of the European Union • Contract No.: SCP2-GA-2012-314206 Any Questions?

  22. Hydrodynamic adaptation http://www.americas-cup-history.com/english/miscell.htm http://www.bennetttrimtabs.com/selecting-the-right-trim-tabs/

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