Wind and Structures

Techno-Press (테크노프레스)
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Numerical investigations on the turbulence driven responses of a plate in the subcritical frequency range

  • De Rosa, S. (Laboratory for promoting experiences in aeronautical structures and acoustics, Department of Aerospace Engineering, Universita degli Studi di Napoli "Federico II") ;
  • Franco, F. (Laboratory for promoting experiences in aeronautical structures and acoustics, Department of Aerospace Engineering, Universita degli Studi di Napoli "Federico II") ;
  • Gaudino, D. (Laboratory for promoting experiences in aeronautical structures and acoustics, Department of Aerospace Engineering, Universita degli Studi di Napoli "Federico II")
  • Received : 2010.10.26
  • Accepted : 2011.08.17
  • Published : 2012.05.25
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Abstract

Some numerical investigations are presented concerning the response of a given plate under turbulence driven excitations. Three different input loads are simulated according to the wall pressure distributions derived from the models proposed by Corcos, Efimtsov and Chase, respectively. Modal solutions (finite element based) are used for building the modal stochastic responses in the sub-critical aerodynamic frequency range. The parametric investigations concern two different values of the structural damping and three values of the boundary layer thickness. A final comparison with available experimental data is also discussed. The results demonstrate that the selection of the adequate TBL input model is still the most critical step in order to get a good prediction.

Keywords

References

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