Combining CFD/FEM/BEM/SEA to Predict Interior Vehicle Wind Noise - Validation Case Hyundai BMT4

자동차 유동기인 실내소음 예측을 위한 CFD/FEM/BEM/SEA 의 조합 및 검증 - 현대자동차 BMT4

  • Blanchet, D. (ESI Group) ;
  • Golota, A. (ESI Group) ;
  • Almenar, R. (ESI Group) ;
  • Lim, J. (ESI Group)
  • Published : 2014.10.29

Abstract

Recent developments in the prediction of the contribution of windnoise to the interior SPL have opened a realm of new possibilities in terms of i) how the convective and acoustic sources terms can be identified, ii) how the interaction between the source terms and the side glass can be described and finally iii) how the transfer path from the sources to the interior of the vehicle can be modelled. This work discusses several simulation methods that can be used to represent the physical phenomena involved such as CFD, FEM, BEM, FE/SEA Coupled and SEA. This work focuses on the validation of the wind noise source characterization method and the vibro-acoustic models on which the wind noise sources are applied in the framework of a benchmark proposed by Hyundai Motors Corporation.

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