Un-Hwan Park and Jun-Hyeok Heo and In-Sung Lee and Tae-Hyeon Oh and Dae-Gyu Park
The Prediction of Sound Absorbing Coefficient for MultiLayer NonWoven
1478 - 1482
2017
11
8
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/10007812
https://publications.waset.org/vol/128
World Academy of Science, Engineering and Technology
Automotive interior material consisting of several material layers has the soundabsorbing function. It is difficult to predict sound absorbing coefficient because of several material layers. So, many experimental tunings are required to achieve the target of sound absorption. Therefore, while the car interior materials are developed, so much time and money is spent. In this study, we present a method to predict the sound absorbing performance of the material with multilayer using physical properties of each material. The properties are predicted by FoamX software using the sound absorption coefficient data measured by impedance tube. Then, we will compare and analyze the predicted sound absorption coefficient with the data measured by scaled reverberation chamber and impedance tubes for a prototype. If the method is used instead of experimental tuning in the development of car interior material, the time and money can be saved, and then, the development effort can be reduced because it can be optimized by simulation.
Open Science Index 128, 2017