Výsledky vyhledávání - "CTL harvesting"

Akademický článek

Workability and Well-Being at Work Among Cut-To-Length Forest Machine Operators

Autor: Kymäläinen Heli, Laitila Juha, Väätäinen Kari, Jukka Malinen

Publikováno v: Croatian Journal of Forest Engineering, Vol 42, Iss 3, Pp 405-417 (2021)

This study assessed the situation of Finnish cut-to-length (CTL) machine operators’ work well-being with workability index (WAI), investigated CTL machine operators’ lifestyle habits, and collected operators’ good practices to maintain and prom

Externí odkaz: https://doaj.org/article/c689a040fdfa45079d0df936c0273f81

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Akademický článek

A comparison of two methods of data collection for modelling productivity of harvesters: manual time study and follow-up study using on-board-computer stem records

Autor: Julia Brewer, Bruce Talbot, Helmer Belbo, Pierre Ackerman, Simon Ackerman

Publikováno v: Annals of Forest Research, Vol 61, Iss 1, Pp 109-124 (2018)

Productivity of a mechanized P. patula cut-to-length harvesting operation was estimated and modelled using two methods of data collection: manual time study and follow-up study using StanForD stem files. The objective of the study was to compare the

Externí odkaz: https://doaj.org/article/87ff66700d1c4d15ad81990354aebd16

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Akademický článek

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Cutting duration and performance parameters of a harvester’s sawing unit under real working conditions

Autor: Prinz, Robert, Väätäinen, Kari, Routa, Johanna

Publikováno v: European Journal of Forest Research. 140:147-157

Amongst all the working elements of single grip harvesters, the working elements of felling and processing play an important role within the cut-to-length (CTL) harvester’s working phases. This includes the felling cutting and cross-cutting of stem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42cec3c97a774e5061a05b51bff0a95
https://doi.org/10.1007/s10342-020-01320-5

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The Impact of Fleet Size, Harvesting Site Reserve, and Timing of Machine Relocations on the Performance Indicators of Mechanized CTL Harvesting in Finland

Autor: Kari Väätäinen, Pekka Hyvönen, Ville Kankaanhuhta, Juha Laitila, Hannu Hirvelä

Publikováno v: Forests
Volume 12
Issue 10
Forests, Vol 12, Iss 1328, p 1328 (2021)

Upscaling an operation typically results in economies of scale, i.e., cost advantages in business, especially when the production unit’s utilization rate can be improved. According to economic studies of mechanized timber harvesting, large wood har

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::20b33235316665a2422b949d0346528f

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Operator Exposure to Noise and Whole-Body Vibration in a Fully Mechanised CTL Forest Harvesting System in Karst Terrain

Autor: Poje, A., Stefano Grigolato, Potocnik, I.

Publikováno v: Croatian Journal of Forest Engineering, Vol 40, Iss 1, Pp 139-150 (2019)
Croatian Journal of Forest Engineering : Journal for Theory and Application of Forestry Engineering
Volume 40
Issue 1
Croatian journal of forest engineering, vol. 40, no. 1, pp. 139-150, 2019.
Università degli Studi di Padova-IRIS

In recent decades fully mechanised cut-to-length forest harvesting systems have spread from flat and gentle to steep and rough terrain. To analyse the potential adverse impact of these changes on operator health, an observational study of exposure to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7a2b1fd347d8d4d9fd64f92d66b8087b
https://hrcak.srce.hr/file/317257

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Operational Costs of Mid-Performance Forwarders in Czech Forest Bioeconomy

Autor: Martin Chytrý, Pavel Natov, Martin Jankovský, Mariusz Kormanek, Ondřej Nuhlíček, Jiří Dvořák, Radim Löwe

Publikováno v: Forests
Volume 12
Issue 4
Forests, Vol 12, Iss 435, p 435 (2021)

Cut-to-length (CTL) operations are expanding in Central European bio-economies. However, they are costly, so efficiency must be maximized. The objective of this study was to analyze direct operational costs of three forwarders from the year 2006 unti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b00df443fa162b1af0da289ffdc82ef9

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Akademický článek

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Data analysis for machine parameter optimization

Autor: Lempiäinen, Ville

Energy efficiency, performance rate and production quality are the key factors of profitable machinery operation in forestry machines or any other domain of heavy machinery. Machines are often operated in range of operating conditions which calls for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4853::7dfc3acdf6b6cf514b9d1bb110c38886
https://trepo.tuni.fi/handle/10024/117984

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