To Analyze Of Weather Seal Sound Transmission Loss By Acoustic Simulation Software

Irwan Syah, Saliza (2017) To Analyze Of Weather Seal Sound Transmission Loss By Acoustic Simulation Software. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) To Analyze Of Weather Seal Sound Transmission Loss By Acoustic Simulation Software.pdf - Submitted Version Download (348kB)

Abstract

By way of the car drives at high speed, wind noise turn into the main noise and can propagate into the vehicle interior cavity through the slits or channels on the automotive body surface.Through a good weather seal performance,the automotive door sealing system can reduce the vehicle interior wind noise so as to reduce the interior sound pressure level.In this study,a 3D (3-dimensional) of seal model of the automotive door sealing system,which considers the force during the mating surface of the channel between the automotive door and body frame,is built to determine the compression ratio by simulate Compression Load Deflection (CLD) analysis by using Catia V5 software.Furthermore,finite element acoustic analysis of Va One software also used to predict the Sound Transmission Loss (STL) of door sealing system. The changes of parameters value specified on thickness value verified to have an influence on the sound transmission loss result.Taking the compression ratio into consideration,two different thicknesses which are one millimeter and two millimeter of weather seal are used to evaluate the effect of the sound transmission loss for the seal rubber.Consequently,seal with the improved on thickness which is two millimeter will increase the sound transmission loss and affect the lower sound pressure level that transmit through the interior car cabin.So that,the design of this new weather seal strip will help to isolate the proton‟s car compartment from interior noise.

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