A Modification of the SEA Equations: A Proposal of how to Model Damped Car Body Systems with SEA Ingemansson Technology AB

Format:

Conference/Event

Author/Creator:

Fredö, C. R., author.

Conference Name:

SAE 2005 Noise and Vibration Conference and Exhibition (2005-05-16 : Grand Traverse, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

The assumption of diffuse (constant) field response limits the applicability of SEA for analysis of structure-borne sound in automotive structures as these are damped and, thus response decay with distance.A relatively simple modification of the SEA equations can be shown to solve the problem of decay with distance across subsystems. It appears that the modification can be implemented into SEA software without too much problem.An analytical model is used to demonstrate the errors when the conventional SEA approach is used and the merit of modified SEA equations. A generic firewall, car floor and rear wall is used as showcase

Notes:

Vendor supplied data

Publisher Number:

2005-01-2436

Access Restriction:

Restricted for use by site license