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  • The method of substantiation of operating modes of equipment and its acquisition in complexes and technological lines of timber industry

    The solution of the problem of justifying the operating modes and the acquisition of equipment used in the technological processes of timber industry is proposed to be implemented using the described methodology. The methodology is based on probabilistic-statistical analysis of technological processes and their representation as queuing systems.

    Keywords: technological network, technological process, technological line, complex, queuing theory, queuing system, timber industry complex

  • Development of the network of forestry roads is the important factor of increasing economic availability of forest resources and forest use in the regions of the european north of russia

    the development of a network of logging roads and increasing the efficiency of its functioning is the most important factor in increasing the economic accessibility of forest resources and intensifying forest management in the regions of the European North of Russia. Substantial development of the network of forest roads is necessary to increase the availability of forests for continuous and selective cutting, thinning, reforestation. It is also necessary to improve the efficiency of the operation of logging road trains while exporting forests, to increase the degree of development of the allowable cutting area, to increase the level of forest fire safety of forests, and to prevent and extinguish forest fires.

    Keywords: availability of forest resources, logging roads, timber road truck, local stone materials, road construction

  • Opportunities for the effective solution of technical-economic engineering problems during planning and optimization of wood transportation

    The developed calculation dependencies for determining the log truck movement indicators during non-steady and steady motion in different modes make it possible to solve technical-economic tasks with adequate accuracy and certainty during planning and optimization of wood transportation. During two-stage timber hauling a log truck based on MAZ-6312B9 has advantages in exploitation and technical-economic indicators in comparison with a log truck based on Scania R-420. There are opportunities for a rapid increase of passing ability of a log truck while using an active trailer. This provides the work of a complete log truck on a forest road, and also there is a possibility to eliminate two-stage timber hauling, with rise of efficiency and technical-economic indicators

    Keywords: wood transport, optimization, log trucks, motion simulation, efficiency

  • Rising functional and technological efficiency of a log truck hydraulic manipulator

    One of the problems with exploitation of log trucks is damage to equipment during the process of transportation of wood material and during loading-unloading operations. The authors of the paper suggest equipping a log truck with an innovative protective butting device in order to increase reliability and work efficiency of the hydraulic manipulator. This device will allow aligning the sawn wood ends of wood products, and thus it will allow excluding a chance of protruding of sawn wood ends at an inadmissible scale which prevents forming a neighboring pack of wood products. The device will also allow excluding mechanical damages of a hydraulic manipulator by sawn wood ends of wood products being laid on a load platform. This will increase its reliability and will reduce the expenses on repair works.

    Keywords: log truck, hydraulic manipulator, modernization, reliability, safety

  • Modern Russian forestry machine-building development trends

    The paper describes and analyzes the main development trends of Russian forestry machine-building in modern conditions. Russian forestry machine-building enterprises do not use presently available perspectives in import substitution in connection with the depreciation of the rouble. Neither do they use the opportunities for producing integrated multifunctional machines. Development and production release of forestry machines for assortment harvesting based on Russian-manufactured tractors fitted with technological equipment of foreign manufacture is the first step on the way of creating domestic vehicles of analogous purpose. These machines will be fully complete with home-produced technological equipment. This will allow reducing the costs on the production of these machines and on their timber-harvesting operations

    Keywords: forest harvesting technology, felling, limbing, cutting into lengths, skidding, forestry machine-building, development

  • Revisiting the description structuring of production processes in the forest sector

    The article focuses on the description structuring of manufacturing process and technological process in the forest industry in the context of a unified system for forest harvesting and processing of tree biomass. An approach to the description of the processes in the timber industry complex is proposed. It is based on the concept of "technological network." Definitions of a term and related terms with him are proposed in the article.

    Keywords: Terminology, timber industry, perforated technological process, technological network of timber production, manufacturing network

  • Thr problem statements of order portfolio optimization of logging contractor in technological networks of timber production

    Effectiveness of wood firm depends up supporting of optimal balance of production and consumption of wood biomass. The problem solution demands optimization of order portfolio in the context of forest operators and woodmongers as a consistent system of the harvesting and processing of wood. The article shows the formulation of this problem in the light of logging contractors and woodworking enterprises.

    Keywords: technological network, optimization of order portfolio, optimal bucking, perforated technological process, sustainable wood use

  • By setting the task of creating intelligent process control systems to extinguish forest fires

    Showing promise of creating intelligent process control systems to extinguish forest fires and robotics such processes. Particular attention is paid to the need to equip members of intelligent devices forest fire calculations. The system control devices classified as a homogeneous group which solves the problem of localization and suppression of forest fires in the face of opposition environment.

    Keywords: intelligent system, forest fires, fire brigades, robotics, fire

  • Modern forest inventory instrument

    The article describes the construction of a modern forest inventory instrument for forest inventory operations, that is a calipers and an increment borer, combined in one body. The described construction provides combination of two operations, which are determination of diameter of a tree trunk and core sampling .

    Keywords: borer, forest instrument, calipers, forest inventory

  • Logging transport performance analysis under the real natural-industrial conditions

    One of the main tasks when organizing workflows of logging transport is the choice of log truck optimal type for logging under specific operation conditions. The method proved by the authors and engineered modelling program of log trucks traffic parameters give an opportunity to accomplish engineering tasks of the choice of logging transport type to operate under various natural-industrial conditions for certain. The example of the log truck optimal type choice is given.

    Keywords: logging transport, grade computations, traffic parameters, performance, import substitution

  • Synthesis of new technical solutions using functional-technological analysis with increment borer as an example

    The article presents a method for searching for new technical solutions. The method is based on a functional-technological analysis of a system, including pointing out its separate elements and studying the interaction between them. The efficiency of the presented method is shown on an example of improvement of an increment borer construction. Application of a functional-technological analysis allows bringing technics development to a new level.

    Keywords: functional-technological analysis, increment borer, patent, tree age, development matrix

  • The possibility of establishing production of bleached chemi-thermomechanical pulp in the Republic of Karelia

    Analysis findings of possibility of establishing production of bleached chemi-thermomechanical pulp in the Republic of Karelia can be found in the article. The advantages of production of bleached chemi-thermomechanical pulp in comparison with paper pulp production are developed in the article. A brief analysis of Russian market of bleached chemi-thermomechanical pulp can be found in the article. Statement of reasons of establishing production of bleached chemi-thermomechanical pulp in the Republic of Karelia can be found in the article too. The establishing production of bleached chemi-thermomechanical pulp could help to solve a problem of deciduous trees processing which is in Republic of Karelia.

    Keywords: Bleached chemi-thermomechanical pulp, paper pulp, cardboard, paper, pulp, processing, deciduous trees, quaking asp, birch

  • Shutoff pipeline valves with the compensation camera

    In article the design of shutoff pipeline valves of bilateral action which thanks to existence of the compensation camera connected by the channel with an internal cavity of the device possesses high safety in operation at the expense of an exception of probability of a rupture of the case and a cover, expression of a working environment of an internal cavity of the device in environment through consolidations under the influence of excessive pressure in an internal cavity is described.

    Keywords: valve, main pipeline, pipeline fittings, pipeline transport.

  • New design of a valves for the main pipeline

    Importance of cooperation of universities with machine-building enterprises from the point of view of an intensification of creation of objects of intellectual property is shown in article. The description of the valve design developed by authors for the main pipeline which allows to provide compensation of excessive pressure in an internal cavity when finding a lock in a closed position and heating of the case of a valve is given. The described design of a valve can be used as shutoff valves on pipelines of nuclear power plants, thermal power plants, main oil and gas pipelines.

    Keywords: valve, main pipeline, pipeline fittings, pipeline transport.

  • Caliper with a built-in marker

    The article describes the construction of a modern forest instrument for forest inventory operations. The equipment consists of a caliper and a built-in marking device. The developed construction allows conducting two operations simultaneously: determination of a trunk diameter and marking a measured tree trunk. The suggested construction leaves visual marks on measured tree trunks automatically, that allows avoiding doubling of measuring results.

    Keywords: marker, caliper, trunk, taxation