A predictive technique aimed at investigating the behaviour of intake and exhaust systems of internal combustion engine and at evaluating their influence on engine breathing and radiated noise is herewith presented. Such a technique is based on coupling a time domain gas dynamic model (composed of zero-dimensional, one-dimensional and three-dimensional methods) with a frequency domain linear acoustic analysis (transfer matrix method); thus a realistic prediction of complete engine systems is realised by adopting in each region the most appropriate method, according to the main features of the phenomena involved. The whole procedure has been applied to the intake system of an automotive engine and the results regarding different operative conditions are presented.
Engine Intake Noise Modelling by Using a Time/Frequency Approach
Sae Technical Papers
SAE 2001 Noise & Vibration Conference & Exposition ; 2001
2001-04-30
Aufsatz (Konferenz)
Englisch
IC engine intake and exhaust noise assessment
Online Contents | 1999
|IPC2001T338 Three-dimensional Simulation of Engine Intake Noise
British Library Conference Proceedings | 2001
|British Library Conference Proceedings | 1994
|The Analysis and Mechanism of Engine ‘Intake Rumbling Noise’
SAE Technical Papers | 1990
|Low Frequency Distortion in Civil Aero-Engine Intake
Online Contents | 2016
|