A study on the relationship between acoustic modes in tire-wheel guard space and high frequency road noise

Jong Hyun Lee; Yo Cheon Ku; Jin Mo Lee

doi:10.7776/ASK.2016.35.4.288

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2016 Vol.35, Issue 4 Preview Page Next Page

A study on the relationship between acoustic modes in tire-wheel guard space and high frequency road noise 타이어-휠가드 공간의 음장모드와 고주파성 로드노이즈의 상관성 연구

31 July 2016. pp. 288-294

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Abstract

The space between tire and wheel guard acts as a path for tire pattern noise transmission. In this study, acoustic phenomenon occurring in the tire-wheel guard space is investigated using acoustic mode analysis and visualization of the sound pressure distribution over the wheel guard surface. We introduced a cavity over the wheel guard surface to reduce the tire pattern noise, where the cavity acts as an acoustic damper. The interior noise was reduced by 2 dB(A), and the noise control measures treated in this study may provide an efficient method to improve interior sound quality without increasing cost and weight at the final stage of the vehicle development.

Keywords

High frequency road noise

Tire pattern noise

Air pipe resonance

Wheel guard acoustic mode

Cavity

Acoustic damper

타이어와 휠가드 사이의 공간은 타이어 패턴음의 전달경로가 된다. 본 논문에서는 타이어-휠가드 공간에서 발생하는 음향현상을 음장모드 분석과 휠 가드 표면에서 음압분포 가시화를 통해 규명하였다. 타이어 패턴음 저감을 위해 음향학적 댐퍼 역할을 수행하는 캐비티를 휠가드 표면상에 적용하였다. 실내소음은 2 dB(A) 감소하였는데, 본 연구에서 다룬 소음저감방법은 완성차 단계에서 원가/중량의 증가없이 실내음질을 개선하는 효과적인 방안이 될 것이라고 판단된다.

키워드

고주파수 로드노이즈

타이어 패턴음

기주공명

휠가드 음장모드

캐비티

음향댐퍼

References

1.S. H. Shin and T. Hashimoto, “Annoyance factors of tire-pattern noise affecting vehicle interior” (in Korean), Proc. of KSNVE Annual Conference, 531-532 (2013).

2.J. H. Han and S. W. Hwang, “A study on the sound radiation and prediction of the tire noise” (in Korean), Proc. of KSNVE Annual Conference, 1100-1104 (2012).

3.H. G. Kim, H. S. Baik, M. S. Lee, D. H. Kim, and D. H. Kim, “A study of wheel guards for reduction of road noise” (in Korean), Proc. of KSNVE Annual Conference, 908-914 (2013).

4.D. K. Kim, I. S. Kang, and Y. J. Oh, “Correlation study of the tire pattern noise frequency and the tire pass by noise” (in Korean), Proc. of KSNVE Annual Conference, 619-620 (2013).

5.S. W. Hwang, M. J. Bang, G. H. Rho, and C. T. Cho, “The study on tire pattern noise” (in Korean), Proc. of KSNVE Annual Conference, 310-313 (2006).

6.S. G. Park, K. H. Kang, S. W. Hwang, K. S. Oh, K. H. Rho, and J. E. Oh, “Transfer path analysis and interior noise estimation of the road noise using multi-dimensional spectral analysis method” (in Korean), Trans KSNVE, 18, 1206-1212 (2008).

7.M. S. Ressl and P. E. Wundes, “Design of an acoustic anechoic chamber for application in hearing aid research,” AMTA’10 Proc. of the 11th WSEAS international conference on Acoustics & music: theory&applications, 18-23 (2010).

Information

Publisher :The Acoustical Society of Korea
Publisher(Ko) :한국음향학회
Journal Title :The Journal of the Acoustical Society of Korea
Journal Title(Ko) :한국음향학회지
Volume : 35
No :4
Pages :288-294
Received Date : 2016-05-02
Revised Date : 2016-05-17
Accepted Date : 2016-06-06
DOI :https://doi.org/10.7776/ASK.2016.35.4.288

The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

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