Fast boundary element simulation of noise emission from vibrating surfaces

Seppo Järvenpää, Tomi Huttunen, Antti Vanne, Matti Malinen, Janne Roivainen, Pasi Ylä-Oijala

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    A fast boundary element method (FBEM) based on multilevel fast multipole algorithm (MLFMA) is introduced for simulating acoustic emission from large vibrating structures. The vibration of a structure is first simulated using a finite element method (FEM). The surface velocity distribution, extracted from the FEM result, is then used a source term in FBEM. The fast acoustic BEM solver utilizes a special broadband version of MLFMA that allows efficient and accurate modeling of large scale acoustics problems on a broad range of frequencies.
    Original languageEnglish
    Pages (from-to)137-150
    JournalRakenteiden Mekaniikka (Journal of Structural Mechanics)
    Issue number3
    Publication statusPublished - Dec 2016
    MoE publication typeA1 Journal article-refereed


    • acoustics
    • boundary element method
    • mechanic-acoustic coupling
    • multilevel fast multipole algorithm
    • noise emission
    • numerical simulation

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