Statistical Energy Analysis of Airborne and Structure-Borne Automobile Interior Noise General Motors Corporation

Format:

Conference/Event

Author/Creator:

Parrett, Alan V., author.

Conference Name:

SAE Noise and Vibration Conference and Exposition (1997-05-20 : Traverse City, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

This paper describes the application of Statistical Energy Analysis (SEA) and Experimental SEA (ESEA) to calculating the transmission of air-borne and structure-borne noise in a mid-sized sedan. SEA can be applied rapidly in the early stages of vehicle design where the degree of geometric detail is relatively low. It is well suited to the analysis of multiple paths of vibrational energy flow from multiple sources into the passenger compartment at mid to high frequencies. However, the application of SEA is made difficult by the geometry of the vehicle's subsystems and joints. Experience with current unibody vehicles leads to distinct modeling strategies for the various frequency ranges in which airborne or structure-borne noise predominates. The theory and application of ESEA to structure-borne noise is discussed. ESEA yields loss factors and input powers which are combined with an analytical SEA model to yield a single hybrid model. Results from model validation and correlation with measured data are presented

Notes:

Vendor supplied data

Publisher Number:

971970

Access Restriction:

Restricted for use by site license