Direct Driven Hydraulic System for Skidders

This paper investigates potential uses of a novel direct driven electro-hydraulic systems for articulated forestry tractors (skidders), due to these systems having notably higher energy efficiencies compared to classical electro-hydraulic systems that are currently being used in skidders for steerin...

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Main Authors: Juraj Benić, Juraj Karlušić, Željko Šitum, Mihael Cipek, Danijel Pavković
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/7/2321
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author Juraj Benić
Juraj Karlušić
Željko Šitum
Mihael Cipek
Danijel Pavković
author_facet Juraj Benić
Juraj Karlušić
Željko Šitum
Mihael Cipek
Danijel Pavković
author_sort Juraj Benić
collection DOAJ
description This paper investigates potential uses of a novel direct driven electro-hydraulic systems for articulated forestry tractors (skidders), due to these systems having notably higher energy efficiencies compared to classical electro-hydraulic systems that are currently being used in skidders for steering, lifting the front and the rear plate, as well as for operating the double-drum winch. A detailed analysis of the skidder rear plate mechanism is carried out, and static force profiles of hydraulic cylinders are obtained for the rear plate based on mechanism dynamics and measurement data from the literature. Thus, obtained results have been used to emulate the real-life force profiles in laboratory experiments featuring both the classical and the proposed direct driven hydraulic systems for the purpose of comparative analysis of their energy and fuel efficiency. These results are subsequently used to estimate the skidder fuel consumption and possible fuel savings over the entire vehicle life span for the realistic vehicle utilisation scenario. The main result is that fuel consumption can be reduced up to five times in the case of direct driven hydraulic system, thus effectively resulting in return of investment period of about four years in the case of skidder being retrofitted with direct driven hydraulic system.
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spelling doaj.art-64949df07e8847bdb301929b0f39f0cb2023-11-30T23:08:36ZengMDPI AGEnergies1996-10732022-03-01157232110.3390/en15072321Direct Driven Hydraulic System for SkiddersJuraj Benić0Juraj Karlušić1Željko Šitum2Mihael Cipek3Danijel Pavković4Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaThis paper investigates potential uses of a novel direct driven electro-hydraulic systems for articulated forestry tractors (skidders), due to these systems having notably higher energy efficiencies compared to classical electro-hydraulic systems that are currently being used in skidders for steering, lifting the front and the rear plate, as well as for operating the double-drum winch. A detailed analysis of the skidder rear plate mechanism is carried out, and static force profiles of hydraulic cylinders are obtained for the rear plate based on mechanism dynamics and measurement data from the literature. Thus, obtained results have been used to emulate the real-life force profiles in laboratory experiments featuring both the classical and the proposed direct driven hydraulic systems for the purpose of comparative analysis of their energy and fuel efficiency. These results are subsequently used to estimate the skidder fuel consumption and possible fuel savings over the entire vehicle life span for the realistic vehicle utilisation scenario. The main result is that fuel consumption can be reduced up to five times in the case of direct driven hydraulic system, thus effectively resulting in return of investment period of about four years in the case of skidder being retrofitted with direct driven hydraulic system.https://www.mdpi.com/1996-1073/15/7/2321direct driven hydraulicsforestry tractorskidderefficiencyfuel savings
spellingShingle Juraj Benić
Juraj Karlušić
Željko Šitum
Mihael Cipek
Danijel Pavković
Direct Driven Hydraulic System for Skidders
Energies
direct driven hydraulics
forestry tractor
skidder
efficiency
fuel savings
title Direct Driven Hydraulic System for Skidders
title_full Direct Driven Hydraulic System for Skidders
title_fullStr Direct Driven Hydraulic System for Skidders
title_full_unstemmed Direct Driven Hydraulic System for Skidders
title_short Direct Driven Hydraulic System for Skidders
title_sort direct driven hydraulic system for skidders
topic direct driven hydraulics
forestry tractor
skidder
efficiency
fuel savings
url https://www.mdpi.com/1996-1073/15/7/2321
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AT zeljkositum directdrivenhydraulicsystemforskidders
AT mihaelcipek directdrivenhydraulicsystemforskidders
AT danijelpavkovic directdrivenhydraulicsystemforskidders