Scientific Journal of KubSAU

The algorithm for managing of supplying of fuel and lubricants, which takes into account the cost of delivery by vehicles and allows quickly determine the optimal batch size and type of vehicle for delivery to ensure the minimum cost for the purchase, storage and delivery of fuels and lubricants, is built. The algorithm can be used in management of subsidiary manufacturing companies - consumers of lubricants and primary production organizations - suppliers of fuel and lubricants to make decisions under varying modes of consumption and prices

Dependences for calculating the volume of earthworks profiled in computer-aided design system (CAD) are presented, taking into account the change in the parameters of the transverse profile of the subgrade of the road, the slope of the hillside. These function are used in computer-program of calculating the volume of earthworks profile, which allows us to calculate both the volume of earthworks profiled on the projected area of the road, and the amount of work on the mounds and excavations on the specific pickets, which allows to differentially estimate the distribution of ground masses for the development of technological processes of construction of subgrade, and it is also a source of information for the design of reserves and stockpiles of soil in CAD

We describe the construction of the raft, formed of flat raft sections; it is shown, that the given raft has deeper draft, which increases during the voyage. The construc-tion of the raft, formed from flat raft sections of stabi-lized buoyancy is presented. The proposed raft has less draft, the intensity of increase of which is not signifi-cant when navigating; it allows it to go through the sec-tions of rivers with smaller depths. A description of raft formation is given

The zone of attraction of hauling branches in an allocation scheme based on the roads in "herringbone" forest resources is divided into 'near' and 'distant' parts with respect to location of contiguity point to forest road. In the "distant" part at certain parameters of cutting area, it is advisable to lay spar roads to a branch at an angle equal to the optimal angle of junction of branch to line, which reduces the cost of removal of wood on the branch. In the "near" part, as well as in forked and combined schemes of road allocation in forest resources , spar roads should be run under the best angles determined by established analytical relationship to reduce the cost of removal of wood

Analytical dependence, defining powers and moments influencing the working unit of lever breaker are shown, which allow determining the stubbing force necessary in adjustment for requirements for modes and parameters of work of lever breaker