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ŠUMARSKI LIST 3-4/1996 str. 76     <-- 76 -->        PDF

D. Hnrval, S. Sever: NEKE TEHNIČKE ZNAČAJKI-: TRAKTORA ZA PRIVLAČENJE DRVA . Šumarski list br. 3—4, CXX (1996), 157—162
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investigation of productivity, production costs and the daanization,
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mages of tree-length and assortment method on forest stand ploitation of forests in the "Mojica Birta" forest enterprise


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SUMMARY: The paper describes the morphological analysis of four skidders
- two adapted farming tractors and two medium-sized skidders. It is based
on the comparison of some properties such as the dependency of the motor
mass and power; relations between the form indices, e.g. H/L=f(B/L); clearance;
longitudinal and side stability, etc. Some of these parallel analyses
were made by entering the data of the tested skidders into the previously
made database of eighty skidders´ dimensions. In addition, the computation
of the limited load haul was made as to three criteria, longitudinal stability,
rear axle carrying capacity and steerability, were made using an algorithm
and computer program developed at the Zagreb Faculty of Forestry.


Key words : skidding, mountainous areas, adapted agricultural tractors,
skidders