International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
권호 표지
DOI QR코드

DOI QR Code

A Study of Eliminating the Vehicle Noise of Engine RPM from the Friction Noise between Tire and Road Pavement by Using a NCPX Method

NCPX 계측방법을 이용한 타이어/노면 사이에서 발생하는 마찰소음에 대한 차량자체에서 발생하는 소음 제거 연구

  • 한봉구 (서울과학기술대학교 건설시스템디자인공학부) ;
  • 김도완 (서울과학기술대학교 건설시스템디자인공학부) ;
  • 문성호 (서울과학기술대학교 건설시스템디자인공학부) ;
  • 김하연 (서울과학기술대학교 건설시스템디자인공학부)
  • Received : 2013.04.18
  • Accepted : 2013.05.08
  • Published : 2013.08.16
Download PDF
⟨ Previous Next ⟩

Abstract

PURPOSES : The purpose of this study is to eliminate the noise of the vehicle after measuring the friction noise obtained from the NCPX (Noble Close ProXimity) method. The pure friction noise between the tire and road pavement could be determined from filtering the compositeness of sound and the influence of the vehicle noise. METHODS: The noise magnitude could be determined by analyzing the sound pressure level (SPL) and sound power level (PWL) along with the noise frequency of a FFT (Fast Fourier Transform) analysis as well as CPB (Constant Percentage Bandwidth) analysis. RESULTS: When the test for measuring the friction noise originated somewhere between tire and road pavement is performed with NCPX method, it must be fulfilled by attaching the surface microphone near the tire. In this condition, the surface microphone can measure the friction noise occurred at between tire and pavement, the chassis noise from the engine and power transfer units, the fluctuating aerodynamic noise, and the turbulence noise directly affected to the surface microphone. By using the NCPX method, the noise occurred at the vehicle must be eliminated for measuring the friction noise between tire and pavement from the traffic noise. CONCLUSIONS: The vehicle's testing engine noise depends on the vehicle and road types. The effect of vehicle's engine noise is less than the friction noise occurred at between tire and pavement at less than 1% effect.

Keywords

References

  1. Chul-Hwan, Kim, Tae-sun, Chang, Ki-Jung, Lee, Hee-Man, Kang. (2007) "A Study on Comparison of Highway Traffic Noise Prediction Models using in Korea". Proceedings of 2007 Korean Society for Noise and Vibration Engineering. pp. 1-4.
  2. Ju-Young, Lee, Sang-Kwon, Lee, Yoon-Kyeong, Jo, Jong-Youn, Kim. (2006) "Identification of the Interior Noise Generated by SUV Axle and Modification of the Structural on Axle System for Noise Reduction". Journal of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 6. pp. 582-592. https://doi.org/10.5050/KSNVN.2006.16.6.582
  3. Mun, S., and Cho, D-S and Choi T-M. (2007) "Influence of pavement surface noise : Korea Highway Corporation test road". Canadian Journal of Civil Engineering, Vol. 34. pp. 809-816. https://doi.org/10.1139/l07-007
  4. Mun, S., and Cho, D-S. (2008) "Development of a highway traffic noise prediction model that considers various road surface types". Applied Acoustics, Vol. 69. pp. 1120-1128. https://doi.org/10.1016/j.apacoust.2007.06.004
  5. Mun, S., and Cho, D-S. (2008)" Determination of the sound power levels emitted by various vehicles using a novel testing method". Applied Acoustics, Vol. 69. pp. 185-195. https://doi.org/10.1016/j.apacoust.2006.08.012
  6. Mun, S., and Cho, D-S. (2009) "Noise measuring technique and field evaluation based on the effects of vehicles and pavement types". Canadian Journal of Civil Engineering, Vol. 36. pp. 1816-1824. https://doi.org/10.1139/L09-106
  7. Sungho, Mun, Kwang-ho, Lee, Dae-Seung, Cho, (2011) "Software Developmet of the Traffic Noise Prediction Based on the Frictional Interaction between Pavement Surface and Tire". Journal of the Korean Society of Road Engineers, Vol. 13, No. 2. pp. 67-75. https://doi.org/10.7855/IJHE.2011.13.2.067
  8. Sangyum, Lee, Junghoon, Jin, Sungho, Mun, Hak-Ryong, Moon. (2012) "Study on the Noise Characteristics of Bridge Deck Pavements in Seoul Inner Ring Road". Journal of the Korean Society of Road Engineers, Vol. 14, No. 2. pp. 19-28.
  9. Sangyum, Lee, In-Tae, Kim, Sungho, Mun, Sooahn, Kwon. (2012) "Study on the Functional Evaluation of Permeable Asphalt Concrete Pavement in Seoul City". Journal of the Korean Society of Road Engineers, Vol. 14, No. 3. pp. 33-39. https://doi.org/10.7855/IJHE.2012.14.3.033
  10. Yunseon, Ryu, Yoon-Seok, Kim. (2012) "Exterior Contribution Analysis of Intake Noise in Pass-by Measurement", Proceedings of 2012 Korean Society for Noise and Vibration Engineering. pp. 296-297.

Cited by

  1. Evaluation on Riding comfort of A Passenger with Various Surface Textures of Concrete Pavement in Tunnels vol.16, pp.5, 2014, https://doi.org/10.7855/IJHE.2014.16.5.155
  2. Estimation of Total Sound Pressure Level for Friction Noise Regarding a Driving Vehicle using the Extended Kalman Filter Algorithm vol.16, pp.5, 2014, https://doi.org/10.7855/IJHE.2014.16.5.059