938 - The experimental identification of the transmission matrix of the muffler
Liu K., Feng T., Zhou Q., Sha D.
Abstract
The transmission Matrix, which is independent with the boundary conditions, is one of the most important parameter of the muffler. An identification method obtaining the transmission matrix based on the least square method (LSM) is developed here. The quantitative relationship between the parameters in the transmission matrix and the sound pressure at the certain position in experimental system is researched. An impedance muffler and a measurement pipe system are designed are established. The experimental procedures according to the identification theory are also referred. The experimental identification results match the theoretical ones very well.
Citation
Liu K.; Feng T.; Zhou Q.; Sha D.: The experimental identification of the transmission matrix of the muffler, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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