Procedure for Separating Noise Sources of Combustion Engines

2009-26-0054

01/21/2009

Event
SIAT 2009
Authors Abstract
Content
The optimization of engine NVH is still an important aspect for vehicle interior and exterior noise radiation. To optimize the engine noise / vibration contribution to the vehicle, a complete understanding of the excitation mechanism, the vibration transfer in the engine structure and the radiation efficiency of the individual engine components is required.
Concerning the excitation within the engine, a very efficient analysis methodology for the combustion- and mechanical excitation within gasoline and diesel engines has been developed. Out of this methodology a software tool has been designed for a fast, efficient and detailed evaluation of the combustion- and mechanical excitation content of total engine noise. Recently this software tool has been successfully applied in engine NVH optimization work for defining the best optimization strategies for engine NVH reduction and noise quality improvement especially with respect to combustion excitation.
In this paper a brief description of the methodology which forms the basis of the software tool is presented apart from a detailed discussion of a number of results obtained with this software tool on gasoline and diesel engines.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-26-0054
Pages
7
Citation
Arndt, R., PRIEBSCH, H., Brandl, F., and Veit, J., "Procedure for Separating Noise Sources of Combustion Engines," SAE Technical Paper 2009-26-0054, 2009, https://doi.org/10.4271/2009-26-0054.
Additional Details
Publisher
Published
Jan 21, 2009
Product Code
2009-26-0054
Content Type
Technical Paper
Language
English