title: A numerical study of a method for measuring the effective in situ sound absorption coefficient.
abstract: The accuracy of a method [Wijnant et al., Proc. of ISMA 31, Leuven, Belgium (2010), Vol. 31] for measurement of the effective area-averaged in situ sound absorption coefficient is investigated. Based on a local plane wave assumption, this method can be applied to sound fields for which a model is not available. Investigations were carried out by means of finite element simulations for a typical case. The results show that the method is a promising method for determining the effective area-averaged in situ sound absorption coefficient in complex sound fields.
authors.affiliation: Chair of Structural Dynamics and Acoustics, Faculty of Engineering Technology University of Twente, Enschede, The Netherlands. e.r.kuipers@ctw.utwente.nl
authors.forename: Erwin R
authors.initials: ER
authors.lastname: Kuipers
authors.forename: Ysbrand H
authors.initials: YH
authors.lastname: Wijnant
authors.forename: André
authors.initials: A
authors.lastname: de Boer
mesh_terms: D000042:Absorption; D003198:Computer Simulation; D020342:Finite Element Analysis; D008962:Models, Theoretical; D009038:Motion; D009622:Noise / Q000517:prevention & control*; D009716:Numerical Analysis, Computer-Assisted; D013016:Sound