Determination of Transmission and Insertion Loss for the General Multi-Inlet Multi-Outlet Case 2016-01-1310
Prior research on assessing multiple inlet and outlet mufflers is limited, and only recently have researchers begun to consider suitable metrics for multiple inlet and outlet mufflers. In this paper, transmission loss and insertion loss are defined for multiple inlet and outlet mufflers using a superposition method that can be extended to any m-inlet n-outlet muffler. Transmission loss is determined assuming that the sources and terminations are anechoic. On the other hand, insertion loss considers reflections. For both metrics, the amplitude and phase relationship between the sources should be known a priori. This paper explains both metrics, and measurement of transmission and insertion loss are demonstrated for a 2-inlet 2-outlet muffler with good agreement.
Citation: Zhang, Y., Herrin, D., Wu, T., and Hua, X., "Determination of Transmission and Insertion Loss for the General Multi-Inlet Multi-Outlet Case," SAE Int. J. Passeng. Cars - Mech. Syst. 9(1):210-215, 2016, https://doi.org/10.4271/2016-01-1310. Download Citation
Yitian Zhang, David W. Herrin, T. Wu, Xin Hua
University of Kentucky, Faurecia Emissions Control Technologies
SAE 2016 World Congress and Exhibition
SAE International Journal of Passenger Cars - Mechanical Systems-V125-6EJ, SAE International Journal of Passenger Cars - Mechanical Systems-V125-6