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

  • 제26권7호
  • /
  • Pages.774-780
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  • 2016
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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부분기여도함수를 이용한 전술차량 소음원 분석

Noise-source Analysis of Tactical Vehicle Using Partial Coherence Function

  • 투고 : 2016.07.27
  • 심사 : 2016.11.17
  • 발행 : 2016.12.20
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초록

In this paper noise source and transfer path of tactical vehicle are analyzed with partial coherence function and spectrum analysis. Engine, transmission, structure panel and aerodynamic are main source of cabin noise. To reduce cabin noise, identifying transfer path of sources and analyzing their contribution is important. With modeling of transfer path and partial coherence function, transfer path and principal noise source can be identified. Engine/transmission and structural resonance are principal source of low frequency noise and by adding stiffener and sound absorbing material, resonance of vibration and inflow air problem can be solved.

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참고문헌

  1. Mohanty, A. R., St. Pierre, B. D. and Suruli-Narayanasami, P., 2000, Structure-borne Noise Reduction in a Truck Cab Interior Using Numerical Techniques, Applied Acoustics, Vol. 59, No. 1, pp. 1-17. https://doi.org/10.1016/S0003-682X(99)00018-3
  2. Castillo, M. S., 2001, Noise Control for Heavy Duty Trucks, a Systems Approach, SAE Technology Paper, 2001-01-1531.
  3. Okubo, N., Okumura, Toi, T., 2009, Noise Reduction in Truck Cabin by Design Change of Floor Panel, Proceeding of the IMAC-XXVII.
  4. Chen, S. M. and Wang, D. G., 2011, Interior Noise Prediction and Analysis of Heavy Commercial Vehicle Cab, Society of Automotive Engineering International.
  5. Choi, K. S., Jeong, W. B., Han, H. S. and Kim, M. S., 2009, Noise-source Identification of Evaporator Using Partial Coherence Function, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 19, No. 4, pp. 347-354. https://doi.org/10.5050/KSNVN.2009.19.4.347