This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Combustion Induced Powertrain NVH - A Time-Frequency Analysis
Annotation ability available
Sector:
Language:
English
Abstract
Powertrain noise is broadly classified into two main categories - Mechanical Noise and Combustion Noise. Mechanical noise, because of its periodicity in time scale, can be easily characterized using customary spectral analysis methods. However, combustion noise which is controlled by the cylinder pressure profile has more periodicity in crank angle scale. Hence, the standard spectral analysis is often not sufficient for combustion NVH assessment.
Combustion noise can be better characterized with time-frequency analysis. In this paper, results obtained with the time-frequency analysis are presented. Also a brief portrayal of advanced signal processing tools for combustion noise analysis has been provided.
Authors
Topic
Citation
Patro, T., "Combustion Induced Powertrain NVH - A Time-Frequency Analysis," SAE Technical Paper 971874, 1997, https://doi.org/10.4271/971874.Also In
References
- Challen, B.J. The effect of combustion system on engine noise SAE paper 750798 1975
- Ishihama, M. Hayashi, Y. Kubozuka, T. An analysis of the movement of the crankshaft journals during engine firing SAE paper 810772 1981
- DeJong, R.G. Manning, J.E. Modeling of vibration transmission in engines to achieve noise reduction SAE paper 790360 1979
- Priede, T. The problems of noise of engines in different vehicle groups SAE paper 750795 1975
- DeJong, R.G. Parsons, N.E. High frequency vibration transmission through the moving parts of an engine SAE paper 800405 1980
- Priede, T. Problems and developments in automotive engine noise research SAE paper 790205 1979
- Kabele, D.F. Combustion noise variability on a DI diesel engine SAE paper 800403 1980
- Whitacre, J.P. Automotive gasoline engine piston noise, sources and solutions SAE paper 901491 1990
- Okamura, H. Furubayashi, M. Experiments on cylinder pressure pulsation and distribution in a swirl-chamber type automotive diesel engine: Idling knocking noise induced by non-uniformly distributed cylinder pressure pulsation SAE paper 831329 1983
- Lalor, N. Grover, E.C. Priede, T. Engine noise due to mechanical impacts at pistons and bearings SAE paper 800402 1980
- Schaberg, P.W. Priede, T. Dutkiewicz, R.K. Effects of a rapid pressure rise on engine vibration and noise SAE paper 900013 1990
- Strahle, W.C. Handley, J.C. Stochastic combustion and diesel engine noise SAE paper 770408 1977
- Yawata, Y. Crocker, M.J. Identification of internal noise sources in diesel engines SAE paper 831330 1983
- Alpini, A. Busso, M. Ruspa, G. Turino, G. Analysis techniques of combustion noise and vibrations in diesel engines SAE paper 800406 1980
- Albright, M.F. Conditioned source analysis, a technique for multiple input system identification with application to combustion energy separation in piston engines SAE paper 951376 1995
- Bendat, J.S. Piersol, A.G. Random Data: Analysis and Measurement Procedures Wiley-Interscience New York 1986
- Tjong, J. Miller, H. Rief, Z. Time based signal analysis for the detection of intermittent and impact noise and vibration Procs. Engng. Appl. of Mechanics Canada 1990
- Chien, M.H. Engine impact noise measurement and quantification SAE paper 951236 1995
- Cohen, L. Time-Frequency Analysis Prentice-Hall, Inc. New Jersey 1996
- Young, R.K. Wavelet Theory and Its Applications Kluwer Academic Publishers Massachusetts 1995
- Nikias, C.L. Shao, M. Signal Processing with Alpha-Stable Distributions and Applications John Wiley & Sons, Inc. New York 1995
- Oppenheim, A.V. Willsky, A.S. Young, I.T. Signals and Systems Englewood Cliffs, NJ Prentice-Hall 1983
- Siebert, W.M. Circuits, Signals and Systems Cambridge, MA MIT Press 1986
- Oppenheim, A.V. Schafer, R.W. Discrete-Time Signal Processing Englewood Cliffs, NJ Prentice-Hall 1989
- Mandelbrot, B.B. The Fractal Geometry of Nature San Francisco, CA, Freeman 1982
- Wornell, G.W. Signal Processing with Fractals: A Wavelet Based Approach Prentice-Hall, Inc. NJ 1995
- Patro, T.N. Combustion study of hydrogen fueled DI diesel engine: simplified heat release analysis Int. J. Hydrogen Energy 18 3 231 241 1993
- Patro, T.N. Burning rate assessment of hydrogen-enriched fuel combustion in diesel engines Int. J. Hydrogen Energy 19 3 275 284 1994