The technique of active/inactive finite elements for the analysis and optimization of acoustical chambers

被引：19

作者：

Barbieri, Renato ^{[1
,3
]}

Barbieri, Nilson ^{[1
,2
]}

机构：

[1] Pontificia Univ Catolica Parana PUCPR, BR-80215901 Curitiba 1155, Parana, Brazil

[2] Univ Tecnol Fed Parana UTFPR, BR-80230901 Curitiba 3165, Parana, Brazil

[3] Fac Engn Joinville, BR-89224100 Joinville, SC, Brazil

来源：

APPLIED ACOUSTICS | 2012年 / 73卷 / 02期

关键词：

Active finite element; Genetic algorithm; Optimization; Acoustical chamber;

D O I：

10.1016/j.apacoust.2011.08.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this work are investigated two topics associated with numerical calculations of the transmission loss in acoustical silencers: analysis of acoustic chambers employing active/inactive finite elements and its optimization using the GA (genetic algorithm) with integer variables. The technical information on the use of active/inactive elements and the definition of all the design variables used for the entire control of the finite element mesh are detailed. Although simple, the numerical results for the examples analyzed show excellent convergence achieved with the combination of these two techniques for the optimization of symmetrical acoustic chambers. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：184 / 189

页数：6

共 7 条

[1] Finite element acoustic simulation based shape optimization of a muffler [J].

Barbieri, R ;

Barbieri, N .

APPLIED ACOUSTICS, 2006, 67 (04) :346-357

[2] Application of the Galerkin-FEM and the improved four-pole parameter method to predict acoustic performance of expansion chambers [J].

Barbieri, R ;

Barbieri, N ;

de Lima, KF .

JOURNAL OF SOUND AND VIBRATION, 2004, 276 (3-5) :1101-1107

[3]

Bazaraa M. S., 2006, NONLINEAR PROGRAMMIN

[4] Reliability of finite element methods for the numerical computation of waves [J].

Ihlenburg, F ;

Babuska, I ;

Sauter, S .

ADVANCES IN ENGINEERING SOFTWARE, 1997, 28 (07) :417-424

[5] Topology optimization of muffler internal partitions for improving acoustical attenuation performance [J].

Lee, Jin Woo ;

Kim, Yoon Young .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2009, 80 (04) :455-477

[6]

LIMA KF, 2011, APPL ACOUST, V72, P142

[7]

Luenberger D.G., 1989, Linear and Nonlinear Programming, V2nd

← 1 →