Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain

The objective of this case study was to develop and test a specific survey protocol for monitoring tensile forces for winch-assisted harvesters and forwarders with a mounted or integrated constant-pull capstan winch technology. Based on the designed survey protocol, the interactions between work pha...

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Main Authors: Franz Holzleitner, Maximilian Kastner, Karl Stampfer, Norbert Höller, Christian Kanzian
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Forests
Subjects:
Online Access:http://www.mdpi.com/1999-4907/9/2/53
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spelling doaj-9ec73bb566aa459ca1c52e6f193fb66e2020-11-24T21:05:56ZengMDPI AGForests1999-49072018-01-01925310.3390/f9020053f9020053Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep TerrainFranz Holzleitner0Maximilian Kastner1Karl Stampfer2Norbert Höller3Christian Kanzian4Institute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, AustriaInstitute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, AustriaInstitute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, AustriaCorporate Information Services, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, AustriaInstitute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, AustriaThe objective of this case study was to develop and test a specific survey protocol for monitoring tensile forces for winch-assisted harvesters and forwarders with a mounted or integrated constant-pull capstan winch technology. Based on the designed survey protocol, the interactions between work phases, machine inclination, and tensile forces in typical work conditions were analysed. The established workflow, including equipment and the developed analysis routines, worked appropriately and smoothly. The working load on the cable during the study did not exceed 50% of the maximum breaking strength. A maximum tensile force peak at 56 kN was observed during delays for the forwarder, and a peak of 75.5 kN was observed for the harvester, both of which are still within the safe working load when considering a safety factor of two.http://www.mdpi.com/1999-4907/9/2/53winch-assistharvesterforwardertensile forcesteep terrain harvestingcut-to-length
collection DOAJ
language English
format Article
sources DOAJ
author Franz Holzleitner
Maximilian Kastner
Karl Stampfer
Norbert Höller
Christian Kanzian
spellingShingle Franz Holzleitner
Maximilian Kastner
Karl Stampfer
Norbert Höller
Christian Kanzian
Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
Forests
winch-assist
harvester
forwarder
tensile force
steep terrain harvesting
cut-to-length
author_facet Franz Holzleitner
Maximilian Kastner
Karl Stampfer
Norbert Höller
Christian Kanzian
author_sort Franz Holzleitner
title Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
title_short Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
title_full Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
title_fullStr Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
title_full_unstemmed Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain
title_sort monitoring cable tensile forces of winch-assist harvester and forwarder operations in steep terrain
publisher MDPI AG
series Forests
issn 1999-4907
publishDate 2018-01-01
description The objective of this case study was to develop and test a specific survey protocol for monitoring tensile forces for winch-assisted harvesters and forwarders with a mounted or integrated constant-pull capstan winch technology. Based on the designed survey protocol, the interactions between work phases, machine inclination, and tensile forces in typical work conditions were analysed. The established workflow, including equipment and the developed analysis routines, worked appropriately and smoothly. The working load on the cable during the study did not exceed 50% of the maximum breaking strength. A maximum tensile force peak at 56 kN was observed during delays for the forwarder, and a peak of 75.5 kN was observed for the harvester, both of which are still within the safe working load when considering a safety factor of two.
topic winch-assist
harvester
forwarder
tensile force
steep terrain harvesting
cut-to-length
url http://www.mdpi.com/1999-4907/9/2/53
work_keys_str_mv AT franzholzleitner monitoringcabletensileforcesofwinchassistharvesterandforwarderoperationsinsteepterrain
AT maximiliankastner monitoringcabletensileforcesofwinchassistharvesterandforwarderoperationsinsteepterrain
AT karlstampfer monitoringcabletensileforcesofwinchassistharvesterandforwarderoperationsinsteepterrain
AT norbertholler monitoringcabletensileforcesofwinchassistharvesterandforwarderoperationsinsteepterrain
AT christiankanzian monitoringcabletensileforcesofwinchassistharvesterandforwarderoperationsinsteepterrain
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