中文版 | English
Title

A non-intrusive model order reduction boundary element method for frequency sweeps of 2D acoustics

Author
Corresponding AuthorXie, Xiang
Publication Years
2023-02-03
DOI
Source Title
ISSN
0022-460X
EISSN
1095-8568
Volume544
Abstract
The boundary element method (BEM) is one of the most commonly used prediction technique to deal with acoustic problems governed by the Helmholtz equation. Its use, however, suffers from the disadvantage that the system of equations have to be reformulated for each frequency of interest due to the frequency-dependent property. This undermines the inherent efficiency of frequency sweep analyses of BE models. Additionally, the resulting coefficient matrices are fully-populated, non-symmetric and complex-valued. In order to enable the traditional BEM to be applied for large-scale acoustic problems, a non-intrusive model order reduction boundary element method under the offline-online framework is proposed. In the offline phase, a proper reduced-order basis (ROB) which spans a projection subspace is constructed via the Arnoldi method. A newly developed cutoff technique is incorporated to reduce the involved compu-tational complexity. Once a low-rank ROB is determined, the full-order frequency-decoupled system matrices based on the series expansions are projected onto the spanned subspace column -by-column to favor the memory requirement. In the online phase, fast frequency sweep analyses with a direct solver can be achieved because only the compact reduced-order model needs to be confronted. The high performance of the proposed solution approach in the context of single -frequency and multi-frequency analyses of two-dimensional (2D) BE models with the number of degrees of freedom ranging from a few hundred up to one hundred thousand is demonstrated by various problem settings, including both interior and exterior acoustic fields with different boundary conditions.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China[12002146] ; International Science and Technology Cooperation Program of Guangdong Province, China[2022A0505030001] ; Young Elite Scientists Sponsorship Program by CAST, China[2021QNRC001] ; NSFC-Shenzhen Robot Basic Research Center, China project[U2013204]
WOS Research Area
Acoustics ; Engineering ; Mechanics
WOS Subject
Acoustics ; Engineering, Mechanical ; Mechanics
WOS Accession No
WOS:000882776900001
Publisher
ESI Research Field
ENGINEERING
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/412194
DepartmentDepartment of Mechanics and Aerospace Engineering
Affiliation
1.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China
2.Shenzhen Key Lab Precis Engn, Shenzhen 518055, Peoples R China
3.Guangdong Prov Key Lab Robot & Intelligent Syst, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China
First Author AffilicationDepartment of Mechanics and Aerospace Engineering
Corresponding Author AffilicationDepartment of Mechanics and Aerospace Engineering
Recommended Citation
GB/T 7714
Xie, Xiang,Zuo, Qiyang,Chen, Hailun,et al. A non-intrusive model order reduction boundary element method for frequency sweeps of 2D acoustics[J]. JOURNAL OF SOUND AND VIBRATION,2023,544.
APA
Xie, Xiang,Zuo, Qiyang,Chen, Hailun,Xu, Yaohui,Yi, Zhengkun,&He, Kai.(2023).A non-intrusive model order reduction boundary element method for frequency sweeps of 2D acoustics.JOURNAL OF SOUND AND VIBRATION,544.
MLA
Xie, Xiang,et al."A non-intrusive model order reduction boundary element method for frequency sweeps of 2D acoustics".JOURNAL OF SOUND AND VIBRATION 544(2023).
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