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FEM-based reconstruction of sound pressure field damped by partially absorbing boundary conditions by R. Anderssohn; St. Marburg; Chr. Großmann is a Engineering article available to read on EtoBox.

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This paper presents an inverse formulation of the acoustic boundary value problem featuring arbitrary admittance boundary conditions. The problem is discretised by using finite elements to reconstruct the sound pressure field of a cavity based on a preferably small number of measurements. For that, a modal approach is investigated to handle the generally under-determined and ill-conditioned system of equations. The viability of the algorithm is tested to reconstruct sound pressure field inside a two-dimensional sedan passenger compartment.

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Author

R. Anderssohn; St. Marburg; Chr. Großmann

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0093-6413)

Published

2006

Language

EN

Field

Engineering (Physical Sciences)