FEM Shape Optimization for Acoustic Chambers 2004-01-3457
The strategy for optimizing the shape design of automotive mufflers is presented. The main goal is to obtain the basic dimensions of the acoustic muffler with the TL been maximized in the interest band frequency. The Finite Element Method with quadratic elements and the method of the four modified parameters are used to calculate the necessary parameters to evaluate the TL's numeric value. The minimizing (or maximizing) problem is solved using the method of the viable directions of Zoutendijk due to its robustness. Numerical experiments performed with asymmetric expansion chambers with extended inlet/outlet show results for the shape optimization with and without constraints.
Citation: Barbieri, R., Barbieri, N., de Lima, K., and Conzatti, A., "FEM Shape Optimization for Acoustic Chambers," SAE Technical Paper 2004-01-3457, 2004, https://doi.org/10.4271/2004-01-3457. Download Citation
Author(s):
Renato Barbieri, Nilson Barbieri, Key Fonseca de Lima, Alcir Francisco Conzatti
Affiliated:
Pontifícia Universidade Católica do Paraná - PUCPR, Wiest S. A.
Pages: 8
Event:
2004 SAE Brasil Congress and Exhibit
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Mufflers
Optimization
Acoustics
Finite element analysis
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