Actas de congresos
On The Forced Harmonic Response Of Coupled Systems Via A Wfe-based Super-element Approach
Proceedings Of Isma 2014 - International Conference On Noise And Vibration Engineering And Usd 2014 - International Conference On Uncertainty In Structural Dynamics. Ku Leuven, v. , n. , p. 2597 - 2610, 2014.
In this work, the harmonic forced response of coupled mechanical systems composed of one-dimensional periodic structures and elastic junctions are computed by means of the wave finite element (WFE) method. In the present study, receptance matrices of periodic structures are formulated on the basis of numerical wave modes. Also, the Craig-Bampton (CB) method, enhanced with a wave-based selection procedure of the fixed-interface modes, is used to derive receptance matrices of junctions. The assembly between the periodic structures and the junctions follows from a classic domain decomposition technique. The proposed WFE-based approach is validated through the analysis of a 3D aircraft fuselage involving stiffened cylindrical shells. 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