This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Application of Global Sensitivity Analysis for Improving the Acoustic Performance of Vehicles
Annotation ability available
Sector:
Language:
English
Abstract
Global acoustic sensitivity refers to a technique allowing to define the optimal modifications to a structure in order to improve its acoustic performance. The methodology is based on a structural finite element model for providing the structural sensitivities and an acoustic boundary element model selected to evaluate the acoustic sensitivities. Both models are combined within a design optimization algorithm, leading to the prediction of the optimal changes of the design parameters. Numerical implementation aspects are discussed, showing how the methodology is designed to handle real-life models. The developed technology is applied for reducing the acoustic radiation of vehicle components such as engine oilpan or gear housing and for improving the acoustic characteristics of car passenger compartments.
Authors
Citation
Guisset, P. and Genard, A., "Application of Global Sensitivity Analysis for Improving the Acoustic Performance of Vehicles," SAE Technical Paper 951091, 1995, https://doi.org/10.4271/951091.Also In
References
- Cunefare, K.A. Koopmann, G.H. “A Boundary Element Approach to Optimization of Active Noise Control Sources on Three-Dimensional Structures” ASME Journal of Vibration and Acoustics 113 387 394 1991
- Seybert, A.F. Rengarajan, T.K. “The Use of CHIEF to obtain unique solutions for Acoustic Radiation using Boundary Integral Equations” J. Acoust. Soc. Am. 81 1299 1306 1987
- Guisset, P. Coyette, J.P. “A Global Acoustic Sensitivity Procedure for Structural Optimization” Proceedings of Inter-Noise 93 Leuven 189 192 1993
- Coyette, J.P. Fyfe, K.R. “Solution of Elasto-Acoustic Problems Using a Variational Finite Element/Boundary Element Technique” The Winter Annual Meeting of the ASME, Int. Symposium on Numerical Techniques in Acoustic Radiation San Francisco 15 25 1989
- Numerical Integration Technologies NV SYSNOISE Rev 5.1 User's Manual Leuven August 1994
- Chargin, M.K. “Interface Between MSC/NASTRAN V67 Frequency Response Sensitivity and SYSNOISE” Internal Note July 1992
- The Macneal-Schwendler Corporation MSC/NASTRAN User's Manual V67 Los Angeles August 1991