Abstract
This paper discusses the acoustic-structural coupling analysis of muffler in which the method of the finite element is used to solve the differential equations. Firstly, according to the symmetry of muffler, by using coordinate transformation the sound field problem is converted from three-dimensional to two-dimensional problem. Secondly, by using Galerkin method derives finite element equations of discrete plane sound field unit. Then the cell boundary conditions and residuals are analyzed which included acoustic-structural coupling border. The unit matrix equations are set to plane acoustic finite element matrix equation. Finally, the design of the finite element method coupled equations of solid sound is designed. A theoretical foundation is established for muffler acoustic-structural coupling characteristic analysis.
Publisher
Trans Tech Publications, Ltd.
Reference4 articles.
1. Yanhua Li. Study on Vibration and Noise and Its Characteristics of Pipeline Systems Considering Fluid-Structure Interaction [D]. Harbin: Harbin Engineering University, (2011). 3-7.
2. Young C J, Crocker M J. Acoustical Analysis, Testing, and Design of Flow-Reversing Muffler Chambers [J]. The Journal of the Acoustical Society of America, (1976), 60(5): 1111-1118.
3. Young C J, Crocker M J. Finite Element Acoustical Analysis of Complex Muffler Systems With and Without Wall Vibrations [J]. Noise Control Engineering Journal, (1977), 9(2).
4. Cai Chao, Gong Zhen. Galerkin Finite Element Approach for Evaluating Transmission Loss of Axis Symmetrical Reactive Silencer with Air-flow [J]. Automotive Engineering, (1994), 16(5): 296-302.
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1. Acoustic-structure Coupling Analysis and Optimization of Muffler;IOP Conference Series: Materials Science and Engineering;2019-10-01