Cross‐Correlation Evaluation of the Contribution to Engine Exhaust Noise Made by Internal Sources

1974 ◽  
Vol 55 (2) ◽  
pp. 388-388
Author(s):  
E. G. Plett ◽  
M. Summerfield
Keyword(s):  
Cross Correlation ◽  
Engine Exhaust ◽  
Exhaust Noise ◽  
Internal Sources

Analysis of Performance of Automotive Exhaust Muffler Based on ANSYS Finite Element

2014 ◽  
Vol 509 ◽  
pp. 118-122 ◽  
Author(s):  
Jian Hui Ma ◽  
Peng Guo
Keyword(s):  
Power Loss ◽  
Simulation Analysis ◽  
Low Cost ◽  
Engine Exhaust ◽  
Experiment Method ◽  
Exhaust Noise ◽  
And Performance ◽  
Analysis Of Performance ◽  
Performance Research ◽  
Engine Power

At present, the control of the automobile engine exhaust noise is mainly installed exhaust muffler. Muffler design and performance research mainly around the silencing performance and the influence to engine power loss. This article built the 3d modeling of automobile exhaust muffler and through simulation analysis obtained the muffler internal acoustic pressure distribution and changes of insertion loss with frequency. Predict the silencer muffler performance as well as the influence on engine power loss. Provide a reference basis for the design of the silencer and optimization. Compared to the traditional experiment method, the method in this article has the advantages of short cycle, low cost.

The Design and Simulation of Diesel Engine Exhaust Muffler

2014 ◽  
Vol 556-562 ◽  
pp. 1075-1078 ◽  
Author(s):  
Zhi Hao Zhou ◽  
Dao Lai Chen ◽  
Ling Zhang Ji ◽  
Shou Peng Wan
Keyword(s):  
Diesel Engine ◽  
Transmission Loss ◽  
Simulation Method ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Exhaust Noise

This paper is to use a fast and useful simulation method to verify the acoustics performance of the exhaust muffler which was designed, and find a better muffler. Based on analyzing the spectral of diesel engine exhaust noise and the muffler theory, and designed two different type of muffler. Got the transmission loss of muffler by using software. Finally, compared the two projects’ transmission loss and got the better effect.

Is a Full Nonlinear Method Necessary for the Prediction of Radiated Engine Exhaust Noise?

1986 ◽  
Vol 26 (2) ◽  
pp. 74 ◽  
Author(s):  
Adrian D. Jones ◽  
William K. Van Moorhem ◽  
Randall T. Voland
Keyword(s):  
Nonlinear Method ◽  
Engine Exhaust ◽  
Exhaust Noise

Engine exhaust noise suppressor

2000 ◽  
Vol 108 (3) ◽  
pp. 884
Author(s):  
Kazushige Maeda ◽  
Akira Sasaki
Keyword(s):  
Engine Exhaust ◽  
Exhaust Noise

Simulation and Optimization Design of Gasoline Engine Exhaust Muffler

2014 ◽  
Vol 599-601 ◽  
pp. 451-454
Author(s):  
Jie Cai ◽  
Yu Hong Long ◽  
Huai Hui Du ◽  
Jun Liang Liu ◽  
Wen Shang Li
Keyword(s):  
Simulation Model ◽  
Optimization Design ◽  
Gasoline Engine ◽  
Working Process ◽  
Engine Exhaust ◽  
Simulation And Optimization ◽  
Related Data ◽  
Simulation Calculation ◽  
Exhaust Noise ◽  
Simulation Results

The coupling simulation model of a gasoline engine’s working process and muffler is established by GT-Power software, and related data are obtained by simulation calculation. It is found that the calculating results are consistent with the actual data, which validates the correctness of this simulation model. Through the analysis processing of the coupling simulation model, it is put forward an improved case for the exhaust muffler in this paper. Based on a local optimization, the simulation results show that the insertion loss of muffler has improved markedly, the exhaust noise values decreased and indicated power engine remain basically unchanged.

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