In the automotive industry, various simulation-based analysis methods have been suggested and applied to reduce the time and cost required to develop the engine structure to improve the NVH performance of powertrain. This simulation is helpful to set the engine design concept in the initial phase of the powertrain development schedules. However, when using the conventional simulation method with a uniformed force, the simulation results sometimes show different results than the test results. Therefore, in this paper, we propose a method for predicting the radiated noise level of a diesel engine using actual combustion excitation force. Based on the analytical radiated noise development target, we identify the major components of the engine that are beyond this development target by in the frequency range. The components of the problem found in this way are reflected in the engine design of the early development stage to shorten the development time. This method is verified by comparing the results of the radiated noise simulation performed in the integrated powertrain model and the engine noise level measured in an anechoic chamber.
Analytical Techniques for Engine Structure Using Prediction of Radiated Noise of Diesel Engine with Changing Combustion Excitation
Sae Technical Papers
Noise and Vibration Conference and Exhibition ; 2017
2017-06-05
Aufsatz (Konferenz)
Englisch
Prediction of Muffler Radiated Noise for a Diesel Engine
British Library Conference Proceedings | 2011
|Prediction of Muffler Radiated Noise for a Diesel Engine
SAE Technical Papers | 2011
|Combustion Noise Prediction Inside Diesel Engine
SAE Technical Papers | 1999
|Combustion noise prediction inside diesel engine
Kraftfahrwesen | 1999
|Heavy duty diesel engine gear train modelling to reduce radiated noise
Kraftfahrwesen | 1995
|