نتایج جستجو برای: skidding
تعداد نتایج: 310 فیلتر نتایج به سال:
In the article results of research work mine electric locomotive are driven on condition stability system "A wheel is a rail" coupling wheels with rails. It marked that transport conditioned by row specific terms. indicated for realization electromechanics systems locomotives structures used hauling engines direct and variable current. During working as an important question there Investigation...
Heavy aircraft main landing gear tyres skid immediately after touchdown as result of the high slip ratio between the tyres and runway, which lead to tyre wear and smoke. In this paper, the tyre wear is modelled on the Archard theory using ANSYS mechanical transient, to reveal the wheel’s dynamic and the tyre tread wear. The wheel’s dynamic and the amount of wear are calculated for initially sta...
Needle litter decomposition rate and nutrient releases of pure stands black pine Scots under the three different micro-ecologic sites (skidding road, logging residues mineral topsoil) control site (non-harvesting site) were studied. The needle litters Black initially analysed for total carbon concentrations (N, P, K, Ca, S, Mg, Mn, Fe). experiment using litterbags method was carried out in fiel...
ground skidding on skid trails affects the physical properties of soil. the objective of this study was to evaluate changes in soil physical properties on skid trails formed due to traffic of metal-tracked skidders with regard to soil bulk density, total porosity, water content and penetration resistance. the studies were implemented on two levels of slope – 20% (sc2) – and three levels of traf...
Abstract The rubber material produced by waste tires greatly pollute the environment. Adding it to asphalt mixture can improve its performance of mixture. elastic pavement paved with has strong durability and reduce noise hazard a certain extent. large-diameter particles into materials inhibit icing probability traffic accidents caused skidding in winter. results show that increase content part...
Heavy aircraft main landing gear tyres skid immediately after touchdown as result of the high slip ratio between the tyres and runway, which lead to tyre wear and smoke. In this paper, the tyre wear is modelled on the Archard theory using ANSYS mechanical transient, to reveal the wheel’s dynamic and the tyre tread wear. The wheel’s dynamic and the amount of wear are calculated for initially sta...
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