Prediction of Engine Noise using Parameterized Combustion Pressure Curves 2007-01-2373
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.
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. Download Citation
Author(s):
José Scarpati, Adam Wikström, Ola Jönsson, Ragnar Glav, Peter Händel, Håkan Hjalmarsson
Affiliated:
SCANIA CV, Royal Institute of Technology
Pages: 15
Event:
SAE 2007 Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Combustion chambers
Engine cylinders
Combustion and combustion processes
Pressure
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