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Hitrost polne in prazne vožnje zgibnega traktorja Bijol BWS 160 pri spravilu lesa na visokem krasu : magistrsko delo : magistrski študij - 2. stopnja = Loaded and empty travel speed of Bijol BWS 160 wheeled skidder in skidding on high karst : M. Sc. Thesis : Master Study ProgrammesKržič, MihaZ raziskavo smo želeli ugotoviti hitrosti vožnje traktorja in razviti model hitrosti vožnje traktorja med spravilom lesa. Podatke smo pridobili s časovno študijo na zgibnem traktorju Bijol BWS 160 v ... gozdnogospodarski enoti Javornik. Ugotovili smo, da je hitrost vožnje po cesti za 12 % večja kot znaša hitrost vožnje traktorja po vlaki. Pokazali smo, da ima največji vpliv na hitrost vožnje po gozdni vlaki njena blatnost, katero smo ugotavljali v treh različnih kategorijah. Hitrost vožnje se v primerjavi s suho vlako zmanjša za 1,5 km/h na vlažni vlaki in 2,3 km/h na blatni vlaki. Na hitrost vožnje značilno vpliva tudi vzdolžni naklon vlake, kjer smo ugotovili, da je hitrost prazne vožnje na ravnem za 12 % večja kot v kategoriji navzgor in za 22 % večja kot v kategoriji navzdol. Medtem, ko je hitrost polne vožnje na ravnem za 54 % večja kot v kategoriji navzgor in za 0,18 % večja kot v kategoriji navzdol. Na hitrost vožnje značilno vpliva tudi breme. Ugotovili smo, da se hitrost polne vožnje spreminja s količino bremena; s povečanjem bremena za 1 t se hitrost polne vožnje zmanjša za 0,21 km/h. Ugotovili smo, da razviti multivariatni linearni model predstavlja dobro osnovo za ugotavljanje hitrosti traktorja. Vseeno pa v nalogi predlagamo spremljanje dodatnih dejavnikov za izboljšanje pojasnjevalne moči modela.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Kržič], 2021Language - slovenianCOBISS.SI-ID - 78553603
Author
Kržič, Miha
Other authors
Mihelič, Matevž
Topics
traktorsko spravilo |
hitrost vožnje |
časovna študija |
tractor skidding |
driving speed |
time study
Library/institution |
City | Acronym | For loan | Other holdings |
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Slovenian Forestry Institute, Forestry Library, Ljubljana | Ljubljana | GIS |
outside loan 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kržič, Miha | |
Mihelič, Matevž | 29335 |
Source: Personal bibliographies
and: SICRIS
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