• 제목/요약/키워드: BFI(Body Frame Integral)

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Single-Run FRF 측정을 통한 실차 모달 시험 및 모드맵 검증 (Full Vehicle Modal Testing using Single-Run FRF Measurement and Mode Map Validation)

  • 이근수;정승균;김증한
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2008년도 추계학술대회논문집
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    • pp.387-388
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    • 2008
  • Finding reasonable flexural modes from the full vehicle modal testing has always been a difficult job to N&V engineers due to FRF inconsistency, nonlinearity, heavy damping and, in many cases, interactions between global body structural modes and massive isolate/non-isolated subsystem modes. This paper provides a brier overview of the mode map validation using single-run FRF measurement with highly sensitive accelerometers fur the full vehicle modal analysis and then it can be used to characterize the vehicle's global/local vibration performances, especially customer perceived "structural feel" typically below 40Hz.

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