Vol 4, No 1 (2010)

The article analyzes the prospects of using the achievements of micro- and nano-technologies in mechanics, energy, biophysics and medicine.

Increase in traction force of transport systems by the rational distribution of the power flow between driving wheel and caterpillar.

This article deals with the possibility of using of energy accumulating substances (EAS) as an alternative fuel for gas-turbine engines and power plants. Dual alloys of Si and Al are investigated as industrial EAS. The authors consider the conditions for their use for obtaining hydrogen from the water. Single-stage and two-stage methods of the EAS application are compared and evaluated. The conclusion is made about the need of further works on use of ЕAS for obtaining hydrogen from the water.

The article examines features of hydrodynamic processes in a running part of jet hydraulic boosters being part of servomotors of energy installations control systems. It is shown how geometric parameters of hydro-distributor jet pipe - intake plate and the presence of associated direct and reverse flows influence on changes of areas of pressurization and overflow in hydraulic booster's jet chamber.

The article examines opportunities of use of materials of reclamations for estimation of reliability of tractors. It is shown, that for reception of such estimations it is necessary to involve the additional information which is contained in source data. The developed algorithm of reliable interval forecasting for running time of a tractor from the moment of last failure and until the moment of carrying out of estimation (or the end of a guarantee) is described. The lead analysis has confirmed sufficient accuracy of received estimations of reliability.

This article considers the results of torsional vibrations simulation in vehicle transmission. It is shown that the preload of clutch damper springs increases dynamic loads in the transmission.

The article describes design features of electrical transmission for special wheeled chassis. When designing cars with electrical transmission one of the challenges is to provide the required traction and speed. The authors propose to solve this problem by selecting optimal parameters of mechanical part of electric transmission.

The paper presents the design of electrohydraulic perforating machine based on "Yutkin effect, also known as electrohydraulic effect (EHE). This EHE perforating machine has high reliability and efficiency (compared with the known analogues). The use of EHE perforating machine will allow adjusting impact value and frequency in automatic regime, reducing of increased noiseness; increasing of ecological safety. To explore the possibilities of the developed device the of EHE perforating machine laboratory facility was designed. It was used to test its mode of functioning and performance.

The paper presents jet engine disk forming methods by local deforming load and results of the thermal and plastic deformation which provides the required fine-grain structure. The author substantiates the necessity of content of fine-grain structure in the blanks made of nickel-based alloy for the isothermal rolling.

The paper examines the influence of high-speed steel grades and technology factors on wear and durability of circular broaches when machining of tooth rims of cylindrical wheels by circular broaches. The data of experimental research of wear of cutting teeth of broaches is given. Empirical dependences by calculation of optimum speed of broaches are given. Recommendations for increase of durability of broaches are given.

The paper presents the design of a special tool for high-precision honing of cylinder blocks liners of various types and models of internal combustion engines. This tool allows to finish a wide range of diameters without repurposing, by using two-stage planetary transmission and device for microsupply of honing blocks.

The paper examines the possibility to design intellectual materials based on film composites. Ferroelectric composites are offered to use as the film composites. The authors discuss ferroelectric composites of different structures. Sensors and intellectual materials on the basis of the obtained composites are considered.

The paper describes a comparative analysis of the classical approach to definition of the physical-mechanical tool material properties and the mathematical analysis by finite elements method with modeling use in program complex ANSYS. The results confirmed the efficiency of the accepted approach to definition of the tool characteristics at high-speed processing.

The paper shows the possibility of extrapolation of diminishing relation of operation-by-operation mass of ferroparticles to number of magnetophoresis operations. It allows defining the residual mass of ferroimpurities, so the total (potential) mass and concentration of ferroparticles in analyzed medium.

This paper analyzes the measurements of link rail bearings racers. The authors make conclusion about ill-conditioning of the problem and suggest a method of solution.

Analysis and evaluation of project documentation of construction of wastewater treatment facilities of industrial enterprises showed that the purification of industrial wastewater and surface waste water must be carried out at different treatment plants with different cleaning lines. The paper also reveals that the calculation determining the weighted average concentrations of pollutants in surface sewage is carried out incorrectly. The author proposes an improved method for determining the initial concentration of pollutants in surface wastewater.

Common target setting for thin layer flow problem is considered in the article. Due to pressure from thin layer to contact area is defined per simple integration main task of that problem is cinematic definition of current line and area boundary. Flow equation is researched in automodel solution class. That is meant such solution of nonlinear partial derivative equation whose type is determined per integration of some ordinary differential equations.

Authors analyzed the nonlinear arrangement for the problem of elastic plate set in supersonic gas flow with velocity vector directed at small angle to its plane. The critical velocity of the flow was estimated at different values of the operations factors, the results were compared.

The paper considers the problems of competitiveness recovery of small and medium enterprises (SMEs). As a tool to solve these problems we propose to use the International financial reporting standards (IFRS) for SMEs. It is also shown that application of the given standards by the Russian SMEs will allow them to create the high-quality information basis. Such information is characterized with demanded completeness of financial position and results of a company business. Also, we analyzed the basic differences between IFRS for SMEs from «full IFRS» and named the basic advantages of application IFRS for SMEs. We also consider prospects and difficulties of adoption of the given standards in Russia.

Russia is going through the difficult period. It faces a number of challenges: political, social, economic and ideological ones. In all these spheres the country lags behind the advanced states and modernization is on the agenda at the moment.

Developing an evolutional strategy for auto-enterprise after finishing the global crisis is based on choosing an optimal way to go with a financial limitation in an enterprise. An important stage of selection process is a risk analysis.

In paper studies the influence of the human capital on competitiveness of the industry. Necessity of development of mutually beneficial cooperation between industry and higher vocational education system.

The authors' attention focuses on the formation of intercultural competence in informational and practical areas as one of the most important conditions for the implementation of foreign language communication. There are analysis of intercultural interaction, determines socio-cultural discommunications specifying their causes. The expediency of developing science-based ways to create an integrated system of language training of economic faculty students are grounded.

The study is focused on the issue of quantitative and qualitative determination of technical and tactical qualification of wrestlers. The proposed equations of simple and multiple regression can reveal the individual performance of each wrestler. It provides individual and group control of athletes in preparation for specific competition.

The article examines the use of mathematical editor MathCad, extending the scientific side of the discipline "Chemistry" for students of engineering specialties MSTU "MAMI". The authors give the examples of the use of this mathematical product in the laboratory workshops. Effective change of their content based on modern methods of investigation is shown. This method is the simulation of physical and chemical processes, which makes it possible to trace the dynamics of change in motivation of students to the priority of a future profession.