Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2006.11a
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- Pages.680-685
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- 2006
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- 1598-2548(pISSN)
A study on the noise improvement of the European vehicles, with using NVH material
유럽 수입 차량의 소음개선을 위한 NVH소재 적용연구
- Kwon, Joseph (Dept. of Mechanical & Automotive Eng, Kookmin university) ;
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Kim, Chan-Mook
(Dept. of Mechanical & Automotive Eng, Kookmin university)
;
- Sa, Jong-Sung (Dept. of Automobile Eng, Seoil College)
- Published : 2006.11.16
Abstract
The latest trend in the automotive industry demands the development of high stiffness car bodies and the securement of inter-system performance for low vibration and noise vehicles. This demand, however, conflicts with need for light weight design and greater fuel efficiency, thus raising the importance of optimization design to satisfy both developmental goals. We chose two European medium sedans, which has gasoline engine and diesel one, to elucidate the noise characteristics of diesel passenger cars, whose sales have been increasing in both Korea and Europe. In the present study a systematic experiment was conducted to analyze the noise characteristics in diesel cars. we made it possible for differentiating car management according to customer demand while allowing for improved commercial feasibility. it was possible to improve interior noise by 2 dB(A) on average sound pressure level. As a result, by 4% higher on articulation index(AI).