Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Transfer Path Analysis and Estimation of the Road Noise for the Driving Vehicle

주행 차량의 로드 노이즈 예측을 위한 각 입력원의 기여도 평가

  • Received : 2010.09.29
  • Accepted : 2010.11.08
  • Published : 2010.11.20
Download PDF
⟨ Previous Next ⟩

Abstract

The reduction of the vehicle interior noise has been the main interest of noise and vibration harshness(NVH) engineers. A passenger vehicle has various and complicated transmission paths of sound and vibration. In order to identify the mechanism of transfer path, estimation of excitation force and exact modeling of transfer path are required. This paper presents method for estimating the noise source contribution on the road noise of the vehicle in a multiple input system where the input sources may be coherent with each other. And vector synthesis technique is employed to identify the characteristics of road noise and its transmission to vehicle compartment through noise and vibration analysis. Vibration reduction efficiency of each transfer path is evaluated by comparing individual vector components obtained virtual simulation.

Keywords

References

  1. Blommer, M., Eden, A. and Amman, S., 2005, “Sound Quality Metric Development and Application for Impulsive Engine Noise,” SAE 2005 Noise and Vibration Conference and Exhibition, 2005-01-2482.
  2. Song, C. G., Park, H., Oh, J. E. and Yum, S. H., 1990, “Performance Improvement of a Vehicle Suspension by Sensitivity Analysis,” Trans. Of the KSME, Vol. 14, No. 6, pp. 1474-1486.
  3. Cho, C. H., Kim, T. W. and Oh, J. E., 1995, “A Study on the Characteristics Analysis of Transmission Path for Vibration and Noise of Automobile,” Proceedings of the KSAE Annual Autumn Conference, pp. 365-371.
  4. Bendat, J. S. and Piersol, A. G., 1980, “Engineering Application of Correlation and Spectral Analysis,” John Wiley & Sons, Inc. 2nd Edition.
  5. Bendat, J. S. and Piersol, A. G., 2000, “Random Data – Analysis and Measurement Procedures,” John Wiley & Sons, Inc. 3rd Edition.
  6. Ren, Y. and Beards, C. F., 1995, “On Substructure Synthesis with FRF Data,” Journal of Sound and Vibration, Vol. 185, No. 5, pp. 845-866. https://doi.org/10.1006/jsvi.1995.0421
  7. Park, S. G., Oh, J. E., 2007, “Transfer Path Analysis and Interior Noise Estimation of the Road Noise Using Multi-dimensional Spectral Analysis Method,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 18, No. 11, p. 1206. https://doi.org/10.5050/KSNVN.2008.18.11.1206
  8. Yang, I. H., Jeong, J. E. and Oh, J. E., 2010, “Evaluation of the Inputs Efficiency for the Interior Noise of the Vehicle Using Vector Synthesis Method,” Transactions of the Korean Society for noise and Vibration Engineering, Vol. 20, No. 6, pp. 562-567. https://doi.org/10.5050/KSNVE.2010.20.6.562
  9. Newland, D. E, 1993, “An Introduction to Random Vibrations, Spectral and Wavelet Analysis,” Longman Scientific & Technical, 3rd Edition.
  10. LMS International, 1995, “Transfer Path Analysis : The Qualification and Quantification of Vibro-acoustic Transfer Paths,” LMS International, Application Notes.