Journal article
Design sensitivity analysis for sequential structural–acoustic problems
Journal of sound and vibration, Vol.263(3), pp.569-591
2003
DOI: 10.1016/S0022-460X(02)01067-2
Abstract
A design sensitivity analysis of a sequential structural–acoustic problem is presented in which structural and acoustic behaviors are de-coupled. A frequency-response analysis is used to obtain the dynamic behavior of an automotive structure, while the boundary element method is used to solve the pressure response of an interior, acoustic domain. For the purposes of design sensitivity analysis, a direct differentiation method and an adjoint variable method are presented. In the adjoint variable method, an adjoint load is obtained from the acoustic boundary element re-analysis, while the adjoint solution is calculated from the structural dynamic re-analysis. The evaluation of pressure sensitivity only involves a numerical integration process for the structural part. The proposed sensitivity results are compared to finite difference sensitivity results with excellent agreement.
Details
- Title: Subtitle
- Design sensitivity analysis for sequential structural–acoustic problems
- Creators
- Nam H Kim - Department of Mechanical and Aerospace Engineering, College of Engineering, University of Florida, Gainesville, FL 32611, USAJun Dong - Center for Computer-Aided Design, Department of Mechanical Engineering, College of Engineering, The University of Iowa, Iowa City, IA 52242-1000, USAKyung K Choi - Center for Computer-Aided Design, Department of Mechanical Engineering, College of Engineering, The University of Iowa, Iowa City, IA 52242-1000, USAN Vlahopoulos - Department of Naval Architecture and Marine Engineering, The University of Michigan, Ann Arbor, MI 48109, USAZ.-D Ma - Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109, USAM.P Castanier - Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109, USAC Pierre - Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109, USA
- Resource Type
- Journal article
- Publication Details
- Journal of sound and vibration, Vol.263(3), pp.569-591
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/S0022-460X(02)01067-2
- ISSN
- 0022-460X
- eISSN
- 1095-8568
- Language
- English
- Date published
- 2003
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064102102771
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