Journal article
Design Optimization for Structural-Acoustic Problems Using FEA-BEA With Adjoint Variable Method
Journal of mechanical design (1990), Vol.126(3), pp.527-533
05/01/2004
DOI: 10.1115/1.1701879
Abstract
A noise-vibration-harshness (NVH) design optimization of a complex vehicle structure is presented using finite element and boundary element analyses. The steady-state dynamic behavior of the vehicle is calculated from the frequency response finite element analysis, while the sound pressure level within the acoustic cavity is calculated from the boundary element analysis. A reverse solution process is employed for the design sensitivity calculation using the adjoint variable method. The 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 over the structural part where the design variable is defined. A design optimization problem is formulated and solved, where the structural weight is reduced while the noise level in the passenger compartment is lowered.
Details
- Title: Subtitle
- Design Optimization for Structural-Acoustic Problems Using FEA-BEA With Adjoint Variable Method
- Creators
- Jun Dong - Department of Mechanical and Industrial Engineering and Center for Computer-Aided Design, The University of Iowa, Iowa City, IA 52242Kyung K Choi - Department of Mechanical and Industrial Engineering and Center for Computer-Aided Design, The University of Iowa, Iowa City, IA 52242Nam H Kim - Department of Mechanical and Aerospace Engineering, The University of Florida, PO Box 116300, Gainesville, FL 32611-6300
- Resource Type
- Journal article
- Publication Details
- Journal of mechanical design (1990), Vol.126(3), pp.527-533
- Publisher
- ASME
- DOI
- 10.1115/1.1701879
- ISSN
- 1050-0472
- eISSN
- 1528-9001
- Language
- English
- Date published
- 05/01/2004
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064201202771
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