SCIENCE & EDUCATION

In article the new approach to modelling of geometrical obstacles at assemblage of mechanical products is described. Is offered the teoretiko-game model, allowing to minimise labour input of check of conditions of geometrical resolvability. Pure strategy for the linearly-ordered sets and optimum – for partial usages of a general view are formulated.

In the history of a human civilisation which is connected with technologies and accumulation and spread of knowledge systems, key achievements are allocated some

We discuss a “trunk” robot-manipulator. The paper presents kinematic and dynamic models of type «hexapod» parallel mechanism as a section of this robot-manipulator.

Some operations reforming ultra- and hypergraphs are considered. These operations realize project procedures of analysis and synthesis the complex system structure using their mathematical models

The modern science, technics, technology and machine-building manufacture exist in the rigid competitive environment both in the country, and abroad. In such conditions their development and maintenance at high enough competitive level should be based on application and realisation of the innovations.

In article the mathematical model of a simple mode of reproduction of the enterprise is considered. The system of the equations for a finding of transfer function of system concerning intensity of realisation of production is deduced. Transfer function of system is received

An influence of location of a sound source in an enclosed space on the spatial acoustic pressure distribution is defined by means of the finite element calculations. 

In this article the set of algorithms structures transformations is offered. These transformations are equivalent in sense of calculation results. Ones can be used for reception of structural algorithms from not structural in parallel programming, automatic recognition of program texts and the analysis of computing complexity of algorithm. For each transformation initial and replacing fragments are described, and also conditions of application are determined.

In article the mathematical model of interaction of the enterprises for manufacture of a foodstuff of dairy branch of agrarian and industrial complex of the Russian Federation is considered. Conditions of full plunder of production assets, and also conditions of the expanded reproduction are deduced

A procedure to calculate an acoustic pressure field in a room by finite element method is given. The influence of frequency, absorption coefficient and amplitude on the acoustic pressure level is defined

Some operations reforming ultra- and hypergraphs are considered. These operations realize project procedures of analysis and synthesis the complex system structure using their mathematical models.

 We discuss a “trunk” robot-manipulator. The paper presents kinematic and dynamic models of type «thripod» parallel mechanism as a section of this robot-manipulator.

    Wide introduction in practice of management of quality of an engineering education by application of a modern information technology in Russia is restrained compare to social and human studies on a number of objective causes – lack of regional network, as well as special software and corresponding didactic and methodical recommendations for the majority of disciplines, etc.

The program complex intended for distance education is observed. The procedure and results of computer simulation of doping in a silicon using for creation of semiconductor materials are carried out.

In work the analysis of some results received for today on non-stationary currents in channels is resulted. The form of a curve of acceleration of a stream is found optimum from a point of hydrodynamic resistance. The analytical decision of the equation of Prandtlja for friction factor is given. In work the analysis of some results received for today on non-stationary currents in channels is resulted. The form of a curve of acceleration of a stream is found optimum from a point of hydrodynamic resistance. The analytical decision of the equation of Prandtlja for friction factor is given.

Modelling of technological processes of processing by pressure demands the task of a curve of hardening of a deformable material. In practice it receive by means of experiences on a stretching and on compression. And experiences on a stretching allow to obtain the data at small degrees of deformation since the sample collapses. At tests for compression because of more favorable scheme of a tension destruction comes at the big degrees of deformation. However the inevitable friction on contact surfaces leads to heterogeneity of deformation on volume of the sample, and, hence, to infringement одноосного a tension.

Now the increasing requirements are shown to quality of a product, stability of technological processes, a resource of work of the process equipment. The given problems allow to solve control systems improved in due course of technological process and the equipment. However development of new manufacturing techniques of details by a method of processing by pressure puts also new problems in management questions these technological processes. One of such technologies is the technology of punching of metals.

Radial forge - process at which two are used and more moving towards each other the tool for creation of shaft with constant or variable diameter on all length or pipes with changes of the internal or external sizes. At radial ковке with use 4 бойков metal in the deformation centre is in a condition of all-round non-uniform compression that allows to increase its technological plasticity.

The modern mechanical engineering is multinomenclature: more than 85 % of its enterprises are manufactures individual-serial types, and the share of the last among them steadily grows

The multiply-connected technological media generation on the level of the routing technological process for products manufacturing is considered. The strategy allowing to decide the problem of computer-assisted synthesis of routing technological process taking into account mechanisms of transformation, maintenance and mutual influence of generated quality characteristics is proposed.