The Application of a New Software Tool for Separating Engine Combustion and Mechanical Noise Excitation 2007-01-2376
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.
Citation: Brandl, F., Veit, J., Arndt, R., and Priebsch, H., "The Application of a New Software Tool for Separating Engine Combustion and Mechanical Noise Excitation," SAE Technical Paper 2007-01-2376, 2007, https://doi.org/10.4271/2007-01-2376. Download Citation
Author(s):
Franz Brandl, Jürgen Veit, Randolf Arndt, Hans-Herwig Priebsch
Affiliated:
AVL List GmbH, ACC - Acoustic Competence Center
Pages: 9
Event:
SAE 2007 Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Diesel / compression ignition engines
Engine components
Noise
Combustion and combustion processes
Noise, vibration, and harshness standards and regulations
Vibration
Analysis methodologies
Radiation
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