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Medium frequency linear vibrations of anisotropic elastic structures

Christian Soize 1, * 
Abstract : A new numerical method is proposed for studying medium frequency linear vibrations of anisotripic viscous elastic structures, based on an energy principle and without using the base of the vibration eigenmodes of associated conservative system. The values generated are all deterministic. These can be used to characterize the vibratory state by frequency band, to study the response to a medium frequency deterministic or random steady excitation, to determine for a fixed frequency band the space distributions of the excitation forces that, when applied to the entire structure or to a given part of the structure, produce the maximum vibrations of the entire structure or an a specified part. The method also facilitates the study of the spatial propagation of vibrations in the elastic medium and makes it possible to compute the modal density.
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Submitted on : Wednesday, April 3, 2013 - 4:03:45 PM
Last modification on : Wednesday, December 8, 2021 - 8:12:03 PM
Long-term archiving on: : Thursday, July 4, 2013 - 4:04:54 AM


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  • HAL Id : hal-00770395, version 1



Christian Soize. Medium frequency linear vibrations of anisotropic elastic structures. La Recherche Aerospatiale (English edition), 1982, 5 (-), pp.65--87. ⟨hal-00770395⟩



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