Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation

The frame structure of the trailer may influence both the traction and the tractor-trailer stability, especially along sloped paths. The aim of this research was to analyze a trailer overturning and the strains on the connected tractors (wheeled, or crawled) during log transportation (loose or tied)...

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Main Authors: Marco Manzone, Angela Calvo
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/8/11/456
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author Marco Manzone
Angela Calvo
author_facet Marco Manzone
Angela Calvo
author_sort Marco Manzone
collection DOAJ
description The frame structure of the trailer may influence both the traction and the tractor-trailer stability, especially along sloped paths. The aim of this research was to analyze a trailer overturning and the strains on the connected tractors (wheeled, or crawled) during log transportation (loose or tied) along a hillside. Two two-axle trailers were used: tandem and turntable steering. Three types of measurements were carried out during the field tests: (i) the detachment from the ground of the rear upstream wheels (or crawler); (ii) the transversal and longitudinal strains occurring when the trailer overturned (and released the hooking system of the tractor); (iii) the lateral deviation of the rear wheels (or crawler) of the tractor. The study highlighted that the two-axle trailer with turntable steering combined with the crawl tractor gave better results in terms of safety during trailer overturning. In addition, independent of the type of trailer, a tied load was found to be more dangerous than a load restrained only by steel struts, because when overturning, the load forms a single unit with the trailer mass which increases the strains.
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spelling doaj.art-3f3a4c245224407f95110d3b66d931cf2022-12-22T02:46:29ZengMDPI AGForests1999-49072017-11-0181145610.3390/f8110456f8110456Incidence of Trailer Frame Structure on Driver’s Safety during Log TransportationMarco Manzone0Angela Calvo1Department of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini, 2, 10095 Grugliasco, ItalyDepartment of Agricultural, Forest and Food Sciences, University of Torino, Largo Paolo Braccini, 2, 10095 Grugliasco, ItalyThe frame structure of the trailer may influence both the traction and the tractor-trailer stability, especially along sloped paths. The aim of this research was to analyze a trailer overturning and the strains on the connected tractors (wheeled, or crawled) during log transportation (loose or tied) along a hillside. Two two-axle trailers were used: tandem and turntable steering. Three types of measurements were carried out during the field tests: (i) the detachment from the ground of the rear upstream wheels (or crawler); (ii) the transversal and longitudinal strains occurring when the trailer overturned (and released the hooking system of the tractor); (iii) the lateral deviation of the rear wheels (or crawler) of the tractor. The study highlighted that the two-axle trailer with turntable steering combined with the crawl tractor gave better results in terms of safety during trailer overturning. In addition, independent of the type of trailer, a tied load was found to be more dangerous than a load restrained only by steel struts, because when overturning, the load forms a single unit with the trailer mass which increases the strains.https://www.mdpi.com/1999-4907/8/11/456frame structuretwo-axle trailercrawl tractorwheel tractorsafety
spellingShingle Marco Manzone
Angela Calvo
Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
Forests
frame structure
two-axle trailer
crawl tractor
wheel tractor
safety
title Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
title_full Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
title_fullStr Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
title_full_unstemmed Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
title_short Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation
title_sort incidence of trailer frame structure on driver s safety during log transportation
topic frame structure
two-axle trailer
crawl tractor
wheel tractor
safety
url https://www.mdpi.com/1999-4907/8/11/456
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