This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A COHERENCE MODEL FOR PISTON-IMPACT GENERATED NOISE
Annotation ability available
Sector:
Language:
English
Abstract
An experimental study was conducted to investigate piston-impact generated noise in diesel engines. A coherence model was used to represent the noise generating mechanisms of the engine. The model was applied to an in-line turbo-charged diesel engine. Frequency response functions were measured between the cylinder liner vibration and the engine noise, and between the combustion pressure and the engine noise. The noise coherent with piston impacts was separated from the noise coherent with combustion. Guidelines are presented showing how the results of the coherence model may be used for engine design and noise prediction.
Authors
Topic
Citation
Hayes, P., Seybert, A., and Hamilton, J., "A COHERENCE MODEL FOR PISTON-IMPACT GENERATED NOISE," SAE Technical Paper 790274, 1979, https://doi.org/10.4271/790274.Also In
References
- Borelage G. D. Boreze J. J. “The Ignition Quality of Fuel in Compression Ignition Engine,” Engineering 132 602 1931
- LeMesurier L. J. Stanfield R. “Combustion in Heavy Oil Engines,” North East Coast Institution of Engineers and Shipbuilders England Feb. 26 1932
- Minter C. C. “Flame Movement and Pressure Development in Gasoline Engines,” S.A.E. Journal 30 80 1935
- Wilke W. “Investigation Concerning the Burning of Diesel Fuels,” M.T.Z. 1 43 1939
- Jenkins S. H. “Analysis and Treatment of Diesel Engine Noise,” Symposium on Noise in Transportation Univ. of Southampton 1974
- Challen B. J. “The Effect of Combustion System on Engine Noise,” S.A.E., SP-397, 750798 1975
- Seybert A. F. “Estimation of Frequency Response in Acoustical Systems with Particular Application to Diesel Engine Noise,” Purdue University 1975
- Chung J. “Measurement and Analysis of Diesel Engine Noise,” Purdue Univ. 1974
- Strahle W. C. Handley J. C. “Stochastic Combustion and Diesel Engine Noise,” S.A.E., 770408 1977
- Haddad S. D. Priede T. Pullen H. L. “Relation Between Combustion and Mechanically Induced Noise in Diesel Engines,” 15th FISITA Congress Paris 1974
- Anderton D. Duggal V. K. “Effect of Turbocharging on Diesel Engine Noise, Emissions and Performance,” S.A.E., SP-397, 750797 1975
- Soroka W. W. Chien C. F. “Automotive Piston-Engine Noise and Its Reduction - A Literature Survey,” S.A.E. Paper 690452 1969
- Crane P. H. G. “The Initiation of Diesel Engine Cylinder Liner Vibrations by Piston Transverse Motion,” 1959
- Ungar E. E. Ross D. “Vibrations and Noise Due to Piston-Slap in Reciprocating Machinery,” J. Sound Vib. 2 2 132 146 1965
- Griffiths W. J. Skorecki J. “Some Aspects of Vibration of a Single Cylinder Diesel Engine,” J. Sound Vib. I 4 345 364 1964
- Fielding B. J. “Identification of Mechanical Sources of Noise in a Diesel Engine,” Univ. of Manchester England May 1968
- Haddad S. D. Fortescue P. W. “Simulating Piston Slap by an Analogue Computer,” J. Sound Vib. 52 1 79 93 1977
- Fielding B. J. Skorecki J. “Identification of Mechanical Sources of Noise in a Diesel Engine: Sound Originating from Piston Slap,” Proc. Instn. Mech. Engrs. 184 857 873 1969-70
- Haddad S. D. Pullen H. L. “Piston Slap as a Source of Noise and Vibration in Diesel Engines,” J. Sound Vib. 34 2 249 260 1974
- Ungar E. E. Alvarey F. F. Ross D. “Piston-Slap Noise in Reciprocating Machinery,” Bolt, Beranek and Newman, Inc. 1964
- Ross D. Ungar E. E. “Recent Experimental Studies of Mechanical Noise in Diesel Engines,” Bolt, Beranek and Newman, Inc. 1964
- Usami T. Wada S. Sonoda S. “Piston Slap Noise of Indirect Combustion Diesel Engine,” S.A.E. SP-397, 750801 1975
- Munro R. Parker A. “Transverse Movement Analysis and Its Influence on Diesel Piston Design,” S.A.E. SP-397, 750800 1975
- Rohrle M. “Affecting Diesel Engine Noise by the Piston,” S.A.E. SP-397, 750799 1975
- Eberhardt A. C. Reiter W. F. “Application of the Coherence Function in Truck Tire Noise Analysis,” Proceedings, Second Inter-agency Symposium on University Research in Transportation Noise N.C. State Univ. June 5-7 II 1974
- Koss L. L. Alfredson R. J. “Identification of Transient Sound Sources on a Punch Press,” J. Sound Vib. 34 1 11 33 1974
- Brown D. L. Halvorsen W. G. “Application of the Coherence Function to Acoustic Noise Measurements,” Proceedings, Inter-Noise 72 Washington, D.C. October 4-6 417 422 1972
- Buehlmann E. T. Crocker M. J. “Noise Measurement on a V-6 Diesel Engine,” Proceedings, Inter-Noise 74 Washington, D.C. September 20 October 2 217 220 1974
- Chung J. Hamilton J. F. Crocker M. J. “Measurement of Frequency Response and the Multiple Coherence Function of the Noise Generation System of a Diesel Engine,” JASA 58 3 635 1975
- Seybert A. F. Crocker M. J. “The Use of Coherence Techniques to Predict the Effect of Engine Operating Parameters on Diesel Engine Noise,” Trans., ASME 97 1976
- Bendat J. S. Piersol A. G. Random Data: Analysis and Measurement Procedures Wiley-Interscience New York 1971
- Seybert A. F. Hamilton J. F. “Time Delay Bias Errors in Estimating Frequency Response and Coherence Functions,” J. Sound Vib. 60 1 1 10 1978
- Hayes P. A. “Experimental and Analytical Investigation of Diesel Engine Piston Impact and Noise,” Purdue Univ. 1977