Next Article in Journal
Natural Regeneration Dynamics of Mora paraensis (Ducke) Ducke in Estuarine Floodplain Forests of the Amazon River
Next Article in Special Issue
Postural Risk Assessment of Small-Scale Debarkers for Wooden Post Production
Previous Article in Journal
Genetic Parameters of Growth Traits and Stem Quality of Silver Birch in a Low-Density Clonal Plantation
Previous Article in Special Issue
Value Retention, Service Life, Use Intensity and Long-Term Productivity of Wood Chippers as Obtained from Contractor Records
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Forests 2018, 9(2), 53; https://doi.org/10.3390/f9020053

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

1
Institute of Forest Engineering, Department of Forest and Soil Sciences, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, Austria
2
Corporate Information Services, University of Natural Resources and Life Sciences, Vienna, Peter-Jordan-Str. 82/3, 1190 Vienna, Austria
*
Author to whom correspondence should be addressed.
Received: 21 December 2017 / Revised: 18 January 2018 / Accepted: 22 January 2018 / Published: 24 January 2018
(This article belongs to the Special Issue Forest Operations, Engineering and Management)
View Full-Text   |   Download PDF [4896 KB, uploaded 24 January 2018]   |  

Abstract

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. View Full-Text
Keywords: winch-assist; harvester; forwarder; tensile force; steep terrain harvesting; cut-to-length winch-assist; harvester; forwarder; tensile force; steep terrain harvesting; cut-to-length
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Holzleitner, F.; Kastner, M.; Stampfer, K.; Höller, N.; Kanzian, C. Monitoring Cable Tensile Forces of Winch-Assist Harvester and Forwarder Operations in Steep Terrain. Forests 2018, 9, 53.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Forests EISSN 1999-4907 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top