Fast boundary element simulation of noise emission from vibrating surfaces

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2016-12
Major/Subject
Mcode
Degree programme
Language
en
Pages
137-150
Series
Rakenteiden Mekaniikka (Journal of Structural Mechanics), Volume 49, issue 3
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.
Description
Keywords
acoustics, boundary element method, mechanic-acoustic coupling, multilevel fast multipole algorithm, noise emission, numerical simulation
Other note
Citation
Järvenpää , S , Huttunen , T , Vanne , A , Malinen , M , Roivainen , J & Ylä-Oijala , P 2016 , ' Fast boundary element simulation of noise emission from vibrating surfaces ' , Rakenteiden Mekaniikka (Journal of Structural Mechanics) , vol. 49 , no. 3 , pp. 137-150 . < http://rmseura.tkk.fi/rmlehti/2016/nro3/RakMek_49_3_2016_3.pdf >