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Prediction of Engine Noise using Parameterized Combustion Pressure Curves
Technical Paper
2007-01-2373
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A parameterization for combustion chamber cylinder pressures is tuned to measurements on an inline 6 cylinder Diesel engine at different operating conditions. Both measured and modeled signals are filtered in the frequency domain and according to the so called Lucas attenuation. Two different estimates of engine radiated noise are obtained and compared in this fashion. The influence of physically meaningful parameters on the frequency contents of the final noise level is analyzed, as well as the contribution of the pressure trace of the motored engine. The scattering of data in the pressure signal is calculated as a function of the crank angle allowing for statistical considerations.
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Authors
Citation
Scarpati, J., Wikström, A., Jönsson, O., Glav, R. et al., "Prediction of Engine Noise using Parameterized Combustion Pressure Curves," SAE Technical Paper 2007-01-2373, 2007, https://doi.org/10.4271/2007-01-2373.Also In
References
- Russell M. F. Haworth R. Combustion Noise from High Speed Direct Injection Diesel Engines SAE Paper 850973
- Eriksson L. Andersson I. An Analytic Model for Cylinder Pressure in a Four Stroke SI Engine SAE Technical Paper no. 2002-01-0371
- Anderton D. Engine Noise & Vibration Control. Course Notes 1990 The Institute of Sound and Vibration Research, Southampton University 1990
- Bodén H. Carlsson U. Glav R. Wallin H. P. Åbom M. Ljud och Vibrationer 2001 91-7170-434-5
- Russel M.F. Cavanagh E. J. Establishing a target for control of diesel combustion noise SAE paper 790271 80 “Diesel Engine Noise Conference” March 1979
- Gustafsson F. Ljung L. Millnert M. Signalbehandling 91-44-01709-X
- Händel P. Ottoson R. Hjalmarsson H. Signalteori 3 2002 91-974087-2-7
- Weisstein, Eric W. Nonlinear Least Squares Fitting http://mathworld.wolfram.com
- Ljung L. System Identification, Theory for the User Second 1999 0-13-656695-2
- Torregosa A. Broatch A. Marant V. Beauge Y. Analysis of Combustion Resonance in DI Automotive Diesel Engines THIESEL 2002. Conference on Thermo- and Fluid Dynamics Processes in Diesel Engines