Report of Investigations 9644: Model for the Structure of Round-Strand Wire Ropes

Details

• Journal Article:
  National Institute for Occupational Safety and Health
• Personal Author:
  Wang, Richard C. ; Miscoe, Anthony J. ; McKewan, William M.
• Description:
  The behavior of wire ropes used in hoisting is not well understood. In an effort to improve this understanding, the structure of round-strand wire ropes was analyzed. This report provides a generalized mathematical model that completely describes the geometry of the wires. It consists of two sets of vector equations and is valid for any round-strand wire rope. One set of equations is used to trace the paths of wires that have the form of a single helix; the other is used for the paths of double helical wires. The specific model for a 33-mm 6X19 Seale, independent wire rope core (IWRC), right regular lay wire rope was presented as an example. The paths and the geometric properties of the wires, which include the path length per lay of strand, the curvature, and the torsion, were determined from this model. The effects of strain deformation were analyzed, resulting in a system of equations for determining the structural parameters of the deformed rope. In future work, the model could be used to analyze wire ropes of different constructions so that a more scientifically based understanding of rope behavior can be established. [Description provided by NIOSH]
• Content Notes:
  Richard C. Wang, Anthony J. Miscoe, and William M. McKewan.
  
  Includes bibliographical references.
  
  
• Subjects:
  Engineering Mining Occupational Health Safety
• Keywords:
  Rope-safety; Wire-rope; Mathematical-models; Safety-research; Mechanical-properties; Engineering; Hoisting-equipment; Mining-equipment; Mining-industry; Structural-analysis; Wear-resistance
• Source:
  Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 98-148, (RI 9644), 1998 Sep; :1-19
• Series:
  NIOSH Numbered Publications
• Subseries:
  Report of Investigations
• DOI:
  https://doi.org/10.26616/NIOSHPUB98148
• ISSN:
  1066-5552
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  32 pdf pages
• NIOSHTIC Number:
  nn:20000227
• NTIS Accession Number:
  PB2004-104820
• Federal Fiscal Year:
  1998
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d787cbb43a9662d4d49700eb6e7af5f31e2f372719e2a0df5189643d745d6252b10f2d591e48f4e915e4a1a339e379487620e0a1d0e54a2e1c23831a57066c11
• Download URL:
  https://stacks.cdc.gov/view/cdc/6362/cdc_6362_DS1.pdf
• File Type:
  [PDF - 324.48 KB ]