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

  • 제16권6호
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  • Pages.658-664
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  • 2006
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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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수직방향 전신 충격진동의 불편함 평가를 위한 주파수가중곡선 개발

Development of Frequency Weighting Shape for Evaluation of Discomfort due to Vertical Whole-body Shock Vibration

  • 안세진 (부산대학교 기계기술연구소) ;
  • 정의봉 (부산대학교 기계공학부)
  • 발행 : 2006.06.01
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초록

Shock vibrations are usually experienced in vehicles excited by impulsive input, such as bumps. The frequency weighting functions of the current standards in ISO 2631 and BS 6841 are to help objectively predict the amount of discomfort of stationary vibration. This experimental study was designed to develop frequency weighting shape for shock vibration having various fundamental frequencies from 0.5 to 16Hz. The specks were produced from the response of single. degree-of-freedom model to a half-sine force input. Fifteen subjects used the magnitude estimation method to judge the discomfort of vertical shock vibration generated on the rigid seat mounted on the simulator. The magnitudes of the shocks, expressed in terms of both peak-to-peak value and un-weighted vibration dose values (VDVs) , were correlated with magnitude estimates of the discomfort. The frequency weighting shapes from the correlation were developed and investigated having nonlinearity due to the magnitude of the shock.

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참고문헌

  1. International Organization for Standardization, 1997, Mechanical Vibration and Shock Evaluation of Human Exposure to Whole-body Vibration, ISO 2631-1
  2. British Standards Institution, 1987, Measurement and Evaluation of Human Exposure to Whole-body Mechanical Vibration and Repeated Shock, BS 6841. London : British Standards Institution
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