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Gewählte Master / Diploma Thesis:

Thomas Holzfeind (2017): Produktivitätsevaluierung des seilgestützten Forwarders John Deere 1110E.
Master / Diploma Thesis - Institut für Forsttechnik (FT), BOKU-Universität für Bodenkultur, pp 57. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
In fully mechanised timber harvesting operations the forwarder represents the limiting machine in steeper terrain. In order to operate also in the steep terrain and on soft soils with low traction they are equipped with traction winches. The objective of this study was to evaluate machine productivity of the cable assisted forwarder John Deere 1110E, investigate set up time for the cable and to calculate harvesting costs based on the productivity model. The developed productivity model for the cable assisted Forwarder John Deere 1110E is based on 75 observed loads within 18 skid trails. The study was carried out in three different stands using detailed productivity and process analyses. Factors, which are influencing machine productivity, are log volume, load volume, inclination, distance during loading activities and extraction distance. With an average observed log volume of 0.10 m3 without bark and an average load volume of 9.25 m3, the cable-winch assisted forwarder reached a productivity of 13.73 m3/PSH15. By an annual utilization of 1,900 hours forwarding the costs for the entire system are 110.68 €/PSH15. The detailed process analysis also showed different solutions for mounting the cable depending on operating downhill, operating uphill, terrain, passability trough the stock and availability of the harvester. Average set up time for the cable operating downhill was 21.6 minutes.

Beurteilende(r): Stampfer Karl
1.Mitwirkender: Holzleitner Franz

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