Tech Papers

[54] Coupling CFD,FEM,BEM,PEM and SEA to Improve Acoustics in Vehicles, 10 years after first implementation

The evolution of vibro-acoustic simulation methods has allowed engineers to tackle applications that were ever increasing in complexity and sheer size. From the Nastran punch cards to today’s cloud computing, the increase in possibilities is mind-blowing and the perspectives for the future of computing have never been so bright. In parallel, the Statistical Energy Analysis (SEA) method has enabled the prediction of broadband noise and vibration in the high frequency domain for an increasingly wider range of applications. Ten years ago, the coupling between FEM and SEA gave rise to a new method that further increased the range of application where vibro-acoustic response could be computed. This work summarizes the main features of this new “FE/SEA Coupled” prediction method, describes the theory governing the coupling between FEM and SEA and presents several examples of applications in the automotive, aerospace, train, marine and cabin noise industries.

2015 – Keynote Speech at SIAT – Symposium on International Automotive Technology, Pune, India
Denis Blanchet (ESI Group, Germany)

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