Browse Publications Technical Papers 2005-01-2436
2005-05-16

A Modification of the SEA Equations: A Proposal of how to Model Damped Car Body Systems with SEA 2005-01-2436

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X