Fast boundary element simulation of noise emission from vibrating surfaces

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

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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Abstract

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 language	English
Pages (from-to)	137-150
Journal	Rakenteiden Mekaniikka (Journal of Structural Mechanics)
Volume	49
Issue number	3
Publication status	Published - Dec 2016
MoE publication type	A1 Journal article-refereed

Keywords

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

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title = "Fast boundary element simulation of noise emission from vibrating surfaces",

abstract = "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.",

keywords = "acoustics, boundary element method, mechanic-acoustic coupling, multilevel fast multipole algorithm, noise emission, numerical simulation",

author = "Seppo J{\"a}rvenp{\"a}{\"a} and Tomi Huttunen and Antti Vanne and Matti Malinen and Janne Roivainen and Pasi Yl{\"a}-Oijala",

year = "2016",

month = dec,

language = "English",

volume = "49",

pages = "137--150",

journal = "Rakenteiden Mekaniikka (Journal of Structural Mechanics)",

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TY - JOUR

T1 - Fast boundary element simulation of noise emission from vibrating surfaces

AU - Järvenpää, Seppo

AU - Huttunen, Tomi

AU - Vanne, Antti

AU - Malinen, Matti

AU - Roivainen, Janne

AU - Ylä-Oijala, Pasi

PY - 2016/12

Y1 - 2016/12

N2 - 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.

AB - 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.

KW - acoustics

KW - boundary element method

KW - mechanic-acoustic coupling

KW - multilevel fast multipole algorithm

KW - noise emission

KW - numerical simulation

M3 - Article

SN - 0783-6104

VL - 49

SP - 137

EP - 150

JO - Rakenteiden Mekaniikka (Journal of Structural Mechanics)

JF - Rakenteiden Mekaniikka (Journal of Structural Mechanics)

IS - 3

ER -

Fast boundary element simulation of noise emission from vibrating surfaces

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