Theoretical relationship between vibration transmissibility and driving-point response functions of the human body

Details

• Personal Author:
  Dong, Ren G. ; McDowell, Thomas W. ; Welcome DE ; Wu, John Z.
• Description:
  The relationship between the vibration transmissibility and driving-point response functions (DPRFs) of the human body is important for understanding vibration exposures of the system and for developing valid models. This study identified their theoretical relationship and demonstrated that the sum of the DPRFs can be expressed as a linear combination of the transmissibility functions of the individual mass elements distributed throughout the system. The relationship is verified using several human vibration models. This study also clarified the requirements for reliably quantifying transmissibility values used as references for calibrating the system models. As an example application, this study used the developed theory to perform a preliminary analysis of the method for calibrating models using both vibration transmissibility and DPRFs. The results of the analysis show that the combined method can theoretically result in a unique and valid solution of the model parameters, at least for linear systems. However, the validation of the method itself does not guarantee the validation of the calibrated model, because the validation of the calibration also depends on the model structure and the reliability and appropriate representation of the reference functions. The basic theory developed in this study is also applicable to the vibration analyses of other structures. [Description provided by NIOSH]
• Subjects:
  Men Musculoskeletal System Occupational Health Risk Assessment Risk Factors Safety Vibration Women
• Keywords:
  Analytical-processes Body-mechanics Exposure-levels Humans Models Posture Risk-factors Vibration-exposure
• ISSN:
  0022-460X
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  332
• Issue:
  24
• NIOSHTIC Number:
  nn:20043089
• Citation:
  J Sound Vib 2013 Nov; 332(24):6193-6202
• Contact Point Address:
  Ren G. Dong, ECTB/HELD/NIOSH/CDC, 1095 Willowdale Road, MS L-2027, Morgantown, WV 26505
• Email:
  rkd6@cdc.gov
• Federal Fiscal Year:
  2014
• NORA Priority Area:
  Construction
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Sound and Vibration
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:cb2e722614159bd7a13a9ba4f800900ab72c25b6a2d2f98abf86bc1440f1a2a2b4aea23c1921a090d0cac8b61e09ebac3b8bbbb4fd319b1fab20a28f44bef03e
• Download URL:
  https://stacks.cdc.gov/view/cdc/195103/cdc_195103_DS1.pdf
• File Type:
  [PDF - 875.99 KB ]