Stochastic Behaviour of Mistuned Stator Vane Sectors: An Industrial Application | Zendy

Amadou Ciré Sall | Zendy; Fabrice Thouverez | Zendy; Laurent Blanc | Zendy; Pierrick Jean | Zendy

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Stochastic Behaviour of Mistuned Stator Vane Sectors: An Industrial Application

Author(s) -

Amadou Ciré Sall,

Fabrice Thouverez,

Laurent Blanc,

Pierrick Jean

Publication year - 2012

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2012/798610

Subject(s) - mistuning , stator , polynomial chaos , sensitivity (control systems) , monte carlo method , engineering , structural engineering , control theory (sociology) , computer science , mechanical engineering , mathematics , vibration , physics , acoustics , electronic engineering , statistics , control (management) , artificial intelligence

Stator vanes which are found in axial compressors are subject to vibratory fatigue. Their division into monoblock sectors makes the prediction of their vibratory behaviour difficult by deterministic methods due to the loss of the cyclic symmetry properties and also to a high sensitivity to mistuning. The purpose is to present a robust calculation strategy based on a stochastic modelisation of the structure. The methodology has been developed first on a simplified model and then applied to an industrial case. Polynomial chaos based results are in good agreement with reference Monte Carlo simulations.

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