The article contains research results of transients into turbine shafts of power turbine units of thermal power station and a state district power station made with a help of new phase-chronometric method using precision measurements with the relative error no more than 5∙10-4 on industrial frequency. The acceptability  of  a method is also regarded in respect of turbine units diagnostics. The researches have been executed on two types turbine units Т-250 and Т-200. There are shown in details the results of transients registration at generator switching  in an external network and switching off it, influencing weariness accumulation in turbine shaft metal. There is also presented an influence of impulses from an internal network on a turbine shaft rotation mode, not  be registering by regular equipment of thermal power station. The turbine shaft twisting fluctuations spectra of turbine units  are presented

The article deals with motion control actuator bipedal walking robot on the program of path. A mathematical model of the tree-actuator robot, recorded by the apparatus of the block matrices and graph theory, presented in a way traditional for actuators with a simple kinematic chain. Presented, developed by the authors, the algorithms forming the trajectory of the robot on a horizontal plane and the results of their implementation on the operating experimental two-legged walking robot with electrohydraulic actuators .An algorithm for stabilizing the movement of the actuator robot controlled by changes of the moments on the feet and the block diagram of the stabilization system, which implements this algorithm. The results of experimental studies robot walking on a horizontal surface.

Dynamic system attainability domain approximate construction problem is considered. We studyefficiency of using composition of multiple integration approach and vector field approximation of model differential equations system for solution of this problem. We present description of specified methods and their tests on application of approximate construction of attainability domain of aircraft, described by model. For given research we reach a conclusion about usability condition of approach composition involved.

For the effective use of business information, formed on the basis of the information-information technologies, the system of management is organized information resource, defining interaction of internal and external information, as well as the methods, technologies and means of search, processing and distribution information for managerial decision- making. Its active use allows to get additional advantages in the management of the organization in the direction of organization of technological processes, increase the property, the search for and development of new technological solutions, virtualization management of manufacturing processes. Also processing the operative information on each stage of the management of manufacturing processes to determine the optimum amount of adding the cost of the product, can contribute to the generation of new technological knowledge, allowing to let out a new product, to form a corresponding segment of the market, reduce production and commercial risks and to receive additional profit.

Any on-board system is a complex technical system, and its analysis requires special mathematical methods. The number of parameters describing the state of the spacecraft, there are tens of thousands. Each such parameter characterizes the state of node, block, unit, subsystem of any on-board system, or any aspect of the operation of this site, the block unit. To estimate the state of the spacecraft and support decision –making requires an estimate of the set of parameters describing the state of this spacecraft. One of the approaches that allow facilitates the process of search for a solution to a group of flight control of spacecraft is presented in this article. This method is the use of "trees" search condition. This approach allows us to optimize the process of analysis of the systems on board. Also, the use of "trees" search state allows you to automate the analysis process and implement its program, organizational, hardware.

This paper describes a parallel algorithm for finding the basic feasible solution of the transportation problem, developed on the basis of the Vogel’s approximation method (VAM). Effectiveness of the proposed algorithm was proved by experiment.

The article presents the main principles of through-wall slot width controlling for polymer filtering tubes produced by deformational cutting technology. Dependence of the machining parameters on slot width at the beginning and the end of slotting was determined. Authors proposed the  technique providing the slot width uniformity along the filter tube. This technique is based on changing the axial feed value when machining the beginning and the end of slotting. Experimental researches proved this method. Slot width variance along the slot for adjustable filter tubes with helical through-wall slot rows was described and proved experimentally. The main factor influencing on slot width variance is inclination  angle of helical slot rows.

We consider a model describing the positional  mechanical connections of products. This model is a hypergraph. Necessary conditions for the existence of the sequence of contractions, transforming the original hypergraph in unimodal discrete state, are proved. These conditions can be used for verification of projects in the early stages of design and construction. It is shown that the violation of a linear relationship between vertices and edges of the hypergraph leads to intractable dimensional chains and the emergence of excess bases. We find all the nonisomorphic noncontractible  hypergraphs of fourth order, which remain valid for the necessary conditions

The lack of reliable and comfortable methods of engineering calculations of connections of the details on cylindrical surfaces with accounting of radial gap, that is somewhat of a key component in such calculation, is becoming more and more obvious. The following group of articles has to improve this situation. The calculation can generally be divided into three parts in accordance with rigidity of the detail with hole. This article is dedicated to the development of methods of engineering calculations of connections of the details on cylindrical surfaces with small gap, that can be considered as boundless in radial direction

Adaptive technology in designing computerized educational systems is one of the major tendencies today. Student model here is the main component, on which adaptive course control is based. The paper is focused on a proposed approach to designing student knowledge model based on an expandable graph of concepts. The graph presents educational concepts and terms in a form of hierarchy. Each node is connected to related objects of computerized teaching system (e.g. chapters, pages, quizzes etc.). Thus, the system is able to track student’s level of knowledge of concepts from graph, node by node.  The proposed principle can be used to design  competence-oriented model of specialist knowledge.

The article contains the results of personal requirements expert ranging for hospitality sphere and model of a typical hotel complex which describes dependence of services set from requirements and personal activities. The procedure of services ranging on the basis of personal requirements ranks is proposed. There are also numerical values of services ranks for main purposes of accommodation: rest, treatment and business trip. The results of the procedure are the basis for implementing the method of intellectual selection of a hotel room and can also simplify the process of selecting a services set, corresponding to the desired number.

Gearings with contact ratio big 2 have some advantages in comparison with standard straight-toothed transfers: high flexural and contact strength, low vibrations and small dynamic loads. At their projection there are some problems - jam origination, high contact loadings on crimps of teeths, heightened speeds of a slip, a heightened heat release. For elimination of these problems it is offered to use modification of a line of a structure of teeths. The article presents results of comparison of various kinds of the profile modification applied to steams of aviation toothed wheels: with contact ratio big 2, and also with contact ratio equal 1.5. Comparison was conducted for the gears applied in aircraft.

System model of the organization of the information resource lets show the interaction of the main information flows in the management system and to identify the main elements required for control of information space of production. Depending on the level of use of information technologies it is possible to allocate two basic levels of forming the system of information management. The first level will make decisions implemented on the basis of the operational database. The second level is determined by the solutions implemented on the basis of the local network of the organization.