Acoustic Muffler’s characteristics are calculated by Transmission Loss and Insertion Loss. Single expansion chamber is generally used as noise reduction elements in exhaust systems. To quantify its effectiveness, transmission loss is commonly used as a parameter comparing the transmitted with incident sound pressure level. Mufflers are typically arranged along the exhaust pipe as the part of the exhaust system of an internal combustion engine to reduce its noise. Tao and Seybert used the Two-Source method which is based on the transfer matrix approach and compared the result with BEM in which the simple expansion chambers with center inlet pipe and center outlet pipe is used. The FEA results show the transmission loss characteristics of simple expansion chambers are comparable with existing experimental results. Keywords: Muffler, Transmission Loss, Ricardo Wave, AnsysCite this Article Amit Kumar Gupta, Ashesh Tiwari. Comparison of Existing Experimental Results with Different Types of Simulation Software for Transmission Loss Estimation of Muffler. Trends in Machine Design 2015; 2(1): 17–20p.
