Predicting the Acoustical Performance of Weak Paths in a Sound Package System Kolano and Saha Engineers, Incorporated

Format:

Conference/Event

Author/Creator:

Jain, Dhaval B., 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 presence of any weak paths or leakage limits the best design and the acoustical performance of a sound package system in a vehicle. Techniques to predict the response at the design level could help in improving the performance of the sound package system. This paper discusses the development, verification, and implementation of an analytical technique for predicting the acoustical performance of a sound package system based on the principles of sound transmission coefficient and the surface area covered by each sub-system. This technique is especially suitable for predicting the acoustical performance of a weak path created by passthroughs or plugs in a sound package system. Initially, a simple system was developed and studied to verify the model. The predicted values were compared with the measured values. Based on the comparison, different parameters were identified and modified such that the model agrees closely with the measured data. Next, the performance of various passthrough designs was predicted and compared with that of the measured data. Finally the model was used to conduct a "what-if game" to understand how the acoustical performance would be impacted by design changes in a part

Notes:

Vendor supplied data

Publisher Number:

2005-01-2520

Access Restriction:

Restricted for use by site license