소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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주행중 차실 내부 소음의 평가

Objective Evaluation of Vehicle Interior Noise in Transient Operation

  • 정혁 (한국과학기술원 기계공학과) ;
  • 이정권 (한국과학기술원 기계공학과)
  • 발행 : 1996.08.01
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초록

Interior noise, engine speed and vehicle speed are measured under transient road-load condition and interior noise signal is transformed by using the transient signal analysis methods, such as the spectrogram and wavelet transform. Using the analyzed results, subjective noise metrics such as the loudness, sharpness and articulation index at each vehicle speed can be estimated and characteristics of interior noise for various running modes can be discussed in the viewpoint of noise quality.

키워드

참고문헌

  1. Proc. of 3rd Int. Congress on Air- and Structure-Borne Sound and Vibration Wavelet Analysis vs. Wigner-Ville Distribution for Time-Frequency Domain Representation of Signatures Shin, Y. S.;Jeon, J. J.
  2. Sound and Vibration v.28 no.8 The Analysis of Nonstationary Dynamic Signals Leuridan, J.;Auweraer, H. V.;Vold, H.
  3. Random Vibrations, Spectral and Wavelet Analaysis Newland, D. E.
  4. ASME Design Engineering Technical Conferences, DE v.84-1 Pattern Changes of Time-Shifted Vibration Signals on Wavelet Time-Scale Maps Chen, D. J.;Wang, W. J.
  5. SAE 911081, Noise and Vibration Conference Development and Application of an Evaluation Technique to Assess the Subjective Character of Engine Noise Schiffbanker, H.;Brandl, F. K.;Thien, G. E.
  6. Acoustics-Method for Calculating Loudness Level ISO 532
  7. ISO/IEC IS11172-3 Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5Mbit/s-Audio Part