title: Vibroacoustic response sensitivity due to relative alignment of two anisotropic poro-elastic layers.
abstract: The effects of relative alignment of two different types of anisotropic open cell porous materials are investigated in terms of the acoustic response of a multi-layered configuration. Numerical experiments, where gradient based optimization techniques were used, are conducted to find possible extremal values. It is shown that, depending on the degree of anisotropy of the porous material properties, their angular orientations have a significant and frequency dependent influence on the measured response. The results highlight the importance of further advancing the knowledge of anisotropic porous material behavior.
authors: Centre for ECO2 Vehicle Design, MWL, KTH Royal Institute of Technology, Stockholm, Sweden. eleonora@kth.se
authors: Eleonora
authors: E
authors: Lind Nordgren
authors: Peter
authors: P
authors: Göransson
authors: Jean-François
authors: JF
authors: Deü
authors: Olivier
authors: O
authors: Dazel
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D016880:Anisotropy; D003198:Computer Simulation; D004548:Elasticity; D004867:Equipment Design; D008422:Materials Testing; D008962:Models, Theoretical; D009038:Motion; D009716:Numerical Analysis, Computer-Assisted; D016062:Porosity; D011312:Pressure; D013016:Sound; D013997:Time Factors; D014732:Vibration