2007年
A consideration of an evaluation index for high-level low-frequency noise by taking into account the effect of human body vibration
Journal of Low Frequency Noise, Vibration and Active Control
- ,
- 巻
- 26
- 号
- 1
- 開始ページ
- 15
- 終了ページ
- 27
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1260/026309207781487501
- 出版者・発行元
- Multi-Science Publishing Co. Ltd
At high sound pressure levels, actual body vibrations (noise-induced vibrations) are induced by low-frequency noise. The purpose of this trial study was to show that considering the effects of noise-induced vibration is effective in evaluating high-level low-frequency noise. Using the A-weighted sound pressure level and the Wk-weighted vibration acceleration level of noise-induced vibration measured on the chest as independent variables, empirical evaluation indices (HLLF1, HLLF2 and HLLF3) for evaluating the unpleasantness caused by high-level low-frequency noise were estimated. The HLLF indices were found to be able to evaluate the unpleasantness caused by high-level low-frequency noise better than the A-weighted pressure level. In addition, the slopes of tentative frequency-weighting characteristics corresponding to the HLLF indices were estimated to be gentler than that of the A-weighting characteristic within 25-50 Hz, which was consistent with many previous results that indicated that noise content at lower frequencies should be given more importance when evaluating low-frequency noise Although there are several areas where the HLLF index needs to be improved before it is put in practical use, the results of this study suggest that high-level low-frequency noise could be more effectively evaluated by taking into account the effect of human body vibration.
- ID情報
-
- DOI : 10.1260/026309207781487501
- ISSN : 2048-4046
- ISSN : 1461-3484
- SCOPUS ID : 36049049533