On the dynamic behavior of bladed disks using wave finite element strategies and model reduction techniques - INSA CENTRE VAL DE LOIRE
Communication Dans Un Congrès Année : 2024

On the dynamic behavior of bladed disks using wave finite element strategies and model reduction techniques

Jean-Mathieu Mencik
Pouloumdé Nikiema
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  • PersonId : 1414880
Moustapha Mbaye
  • Fonction : Auteur
  • PersonId : 1414881

Résumé

In this paper the wave finite element method is applied to compute the harmonic response of bladed disks with distributed loads, e.g., for substructures (sectors) subjected to an engine order excitation. The proposed approach consists in (i) expressing the displacements and forces at the interfaces between the substructures in terms of wave modes, (ii) expressing the external forces in terms of wave modes and (iii) solving a local/substructure equation for expressing wave amplitudes. To improve the efficiency of the WFE method, a model reduction technique is proposed where the key idea is to express the displacement vectors at the substructure interfaces with a small number of boundary modes. Numerical simulations are carried out on a 3D industrial structure where the efficiency and accuracy of the WFE approach are demonstrated.
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Dates et versions

hal-04695750 , version 1 (12-09-2024)

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  • HAL Id : hal-04695750 , version 1

Citer

Jean-Mathieu Mencik, Pouloumdé Nikiema, Moustapha Mbaye. On the dynamic behavior of bladed disks using wave finite element strategies and model reduction techniques. The 2024 Leuven Conference on Noise and Vibration Engineering (ISMA 2024), KU Leuven, Sep 2024, Leuven (Belgique), France. ⟨hal-04695750⟩
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