In previous work a simulation method of vehicle noise has been reported using an FEM model comprising the coupling between the vehicle structure and the acoustic cavity as modal models. But in this method, suitable damping values could not be set for each part of the vehicle body. Therefore, the authors developed a new simulation method for vehicle noise and vibration using the component mode synthesis method which, includes different damping in each part of the body structure. By using this method, the FEM body model, with a large degree of freedom, has been calculated without difficulty and different damping values in each part can be included. Then, the most effective position and quantity of damping material can be analyzed.
Analysis of booming noise in van-type vehicle by component mode synthesis method
Analyse der droehnenden Geraeusche im Lieferwagen durch die Synthesemethode der Tonarten einzelner Komponenten
SAE-Papers ; Mar ; 1-5
1988
5 Seiten, 10 Bilder, 2 Quellen
Conference paper
English
Analysis of booming noise in van-type vehicle by component mode synthesis method
Automotive engineering | 1988
|Analysis of Booming Noise in Van-Type Vehicle by Component Mode Synthesis Method
SAE Technical Papers | 1988
|The Booming Noise Reduction of a Vehicle Using Effectiveness Analysis
British Library Conference Proceedings | 1997
|The Booming Noise Reduction of a Vehicle Using Effectiveness Analysis
SAE Technical Papers | 1997
|Booming Noise Analysis Method Based On Acoustic Excitation Test
SAE Technical Papers | 1998
|