Applications for synthetic rope in logging Public Deposited

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  • Steel wire rope is used for many logging applications. This material has served the logging industry well in terms of strength, durability, and longevity; Steel wire rope is difficult to use because of properties that make it stiff, heavy; and unyielding. These same properties cause fatigue, exhaustion, and may contribute to worker injuries. Our research placed synthetic rope samples in the hands of selected loggers to try out alternatives to steel wire rope. Few studies have addressed the use of synthetic rope for logging applications. Initial trials with cooperating logging contractors showed positive ergonomics and logging productivity efficiencies. The logging industry is slow to change; so, not all of these initial trials were accepted. Designed research of synthetic rope in logging is needed to determine when synthetic rope is a suitable replacement for steel wire rope. Synthetic rope has the potential to replace steel wire rope for many logging applications. In our trials, we assessed static line applications (guylines, intermediate support lines, tree AN ABS1RACf OF THE PAPER OF Jared M. Leonard for the degree of Master of Forestry in Forest Operations presented on September 8th.2003 Title: Applications for Synthetic Rope in Logging Steel wire rope is used for many logging applications. This material has served the logging industry well in terms of strength, durability, and longevity. Steel wire rope is difficult to use because of properties that make it stiff, heavy, and unyielding. These same properties cause fatigue, exhaustion, and may contribute to worker injuries. Our research placed synthetic rope samples in the hands of selected loggers to try out alternatives to steel wire rope. Few studies have addressed the use of synthetic rope for logging applications. Initial trials with cooperating logging contractors showed positive ergonomics and logging productivity efficiencies. The logging industry is slow to change; so, not all of these initial trials were accepted. Designed research of synthetic rope in logging is needed to determine when synthetic rope is a suitable replacement for steel Vllfe rope. replace In our trials, we assessed static line applications (guylines, intermediate support lines, tree straps, and snap guylines) and running line applications for yarding and ground-based logging systems. Our running line applications using synthetic rope included two skidder / crawler tractor winching trials, a Boman Mark IV carriage trial, and a Koller K300 mainline trial. Static line applications such as guylines, intermediate support lines, tree straps, and snap guylines are acceptable replacements of steel wire rope with synthetic rope. Loggers were more likely to try additional applications once they used synthetic rope as tree straps and were confident of its strength. Cost was an initial drawback for most logging contractors. Additional research is needed to determine damage, replacement, and wear criteria for synthetic rope in logging applications. Running line applications showed positive results in the skidder / crawler winching trials with faster cycle times and increased efficiencies for using synthetic rope. The Koller K300 mainline trials also produced positive results as a running line. The Boman Mark IV internal drum carriage trial showed no significant differences between steel wire rope and synthetic rope. We believe designed research is necessary to evaluate carriage applications with synthetic rope. Future studies for static line applications should include guyline taglines, skyline taglines, haywire (rigging line) replacement, and various other applications. Putting synthetic rope into the hands of users will help identify valuable applications where synthetic rope has merit. Future studies for running lines should focus on designed trials to adequately observe the effects of synthetic rope in specific applications such as side-hill lateral yarding, uphill lateral pulling in winching trials, and other difficult logging conditions. Preliminary results show synthetic rope is a good candidate for the replacement of steel wire rope in selected logging applications. More research is needed to determine damage, replacement, and wear criteria for all applications of synthetic rope in logging.
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  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2009-05-04T16:47:41Z No. of bitstreams: 1 Leonard, Jared MF.pdf: 384460 bytes, checksum: 0357648a12d6cfc9270ef22f881ed9f6 (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2009-05-07T14:55:40Z (GMT) No. of bitstreams: 1 Leonard, Jared MF.pdf: 384460 bytes, checksum: 0357648a12d6cfc9270ef22f881ed9f6 (MD5)
  • description.provenance : Made available in DSpace on 2009-05-07T14:55:40Z (GMT). No. of bitstreams: 1 Leonard, Jared MF.pdf: 384460 bytes, checksum: 0357648a12d6cfc9270ef22f881ed9f6 (MD5)

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