Vehicle Body Optimization of Structural Noise and Vibration Using a Hybrid Technique The Dow Chemical Company

Format:

Conference/Event

Author/Creator:

Siavoshani, Saeed, author.

Conference Name:

SAE 2007 Noise and Vibration Conference and Exhibition (2007-05-15 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

This paper describes a comprehensive hybrid technique developed for optimization of damping materials on vehicle bodies. This technique uses finite element analysis (FEA) along with experimental techniques to complement each other. In this particular application, a hybrid technique was used to address floorpan vibration and the resulting radiated noise. The objective of this approach was to develop an optimized damping material application layout. This optimized layout balances the increased performance with the overall material volume, mass, and cost. The optimized damping material application developed resulted in a 3-5 dB reduction in the floorpan vibration level while saving 10% in material volume and mass. This optimized layout was validated on a body-in-white using a laser vibrometer. In addition, a new liquid applied material was also introduced with better damping characteristics. This new material was shown to yield further material mass and volume savings with equal damping performance. This paper documents the step-by-step process and results of the damping pattern and material optimization

Notes:

Vendor supplied data

Publisher Number:

2007-01-2327

Access Restriction:

Restricted for use by site license