7Selamet A, Yonak S H, Novak J M, et al. The Effect of Vehicle Exhaust System Components on Flow Losses and Noise in Firing Spark-ignition Engines[ C]. SAE Paper 951206.
8Crocker M J . Internal Combustion Engine Exhaust Muffling. Noise - con 77 Proceedings [ M ]. Hampton, VA, 331,358.
9Eriksson L J, Thawani P T, Hoops R H. Acoustical Design and Evaluation of Silencers [ M ]. Sound and Vibra2ti on, 1983, (7) : 20 -27.
10Green A J and P N. Gas Flow Noise and Pressure Loss in Heavy Vehicle Exhaust Systems [ M ]. Inc.