A new approach has been developed which provides a quantitative breakdown of the measured powertrain vibration into powertrain rigid motion, component modes and global powertrain compliance (e.g. powertrain bending), based on a kinematic analysis of the measured running mode shape data. This method clearly separates the relative influences of component from global modes, and thereby indicates which powertrain design changes will provide the greatest structure-borne noise improvements. Additionally, by applying the method to analytical data the correlation of an FE model can be very efficiently supported. This paper describes the new approach and an example of a complete structure-borne noise analysis. The correlation of an FE-model of a powertrain model is also shown.
A new approach for powertrain structure borne noise analysis
1998
11 Seiten, 7 Bilder, 4 Quellen
Conference paper
English
A new approach for powertrain structure borne noise analysis
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