The analysis of factors affecting the life of the elements of the transmission of the car. An assessment was made of the influence of vehicle operation modes on the reliability and durability of gearbox parts. Considered modern methods of lubrication of transmission elements av-car. A method is proposed for increasing the efficiency of lubrication of friction units by using an electric field and the formation of dipole structures of a lubricant on friction surfaces. The article was published as part of the implementation of the program of the International Forum “Victory May 1945.
Keywords: gear box, transmission, lubrication methods, design, operation mode, work, ionization, lubricant
In the article the features of application of logistic approaches of the organization of movement of the cable cars, as well as the method of selecting the cable car and the slopes at various characteristics of the operation of the complex. The results of experimental research on the network of cable cars of the mountain resort "Rosa Khutor"are offered. The paper uses the methods of monitoring the movement of passengers on cable cars by means of identification by ski pass and GPS
Keywords: transport mobility, route network, public transport, automated monitoring of passenger traffic, logistics approach, cable car, monitoring of cable car congestion on-line, traffic volume, digital transport management system
The article deals with topical issues of the formation of new criteria for the use of land resources and the prospects for their implementation in the land fund management process at the municipal level. The analysis of the main trends in the modernization of land legislation in terms of the transition from the division of land into categories to territorial zoning, as the basis of the land management system and the adjustment of their legal regime of use, was carried out. The article was published in the framework of the program of the International Forum" Victory May 1945".
Keywords: land resources, territorial zoning, land management, land categories, classifier of types of permitted use of land resources, agricultural regulations, city planning regulations, land resources protection, modernization of land legislation
The authors analyzed the accident statistics with the participation of motorcyclists in the Russian Federation. The results of an expert study of a road accident involving a motorcyclist and a car are presented. Determined the cause of the accident. On known mathematical dependences it is established that at observance by the driver of the motorcycle Of traffic rules road accident could not occur. This conclusion is confirmed with the help of the program "Automaker".
Keywords: traffic accident, expert analysis, motorcycle, accident
The following work looked into sensitive analysis. Sensitive analysis is used to gather some data of analysed problem and further to reduce the time required to run a simulation. The work explains importance of the tool in field of mechanics engineering. The work briefly outline applications of the tool in industries. Also I-beam analysis was done to better understand influence of sensitive analysis. The results illustrated that by reducing nodes in the geometry of the I-beam the output values stay the same, but too much reduction will lead to incorrect results. The comparison of the two methods also took a place in this work, to see the correlations and discrepancy of the problem.
Keywords: sensitive analysis, time reduction, finite element, I-beam, simulation
Article is devoted to acquaintance with methods which are used in the work by experts-builders when conducting construction technical expertizes of building constructions, buildings and a construction. The list of the main methods used in researches by the expert is provided and also each method is considered in more detail.
Keywords: Method, examination, expert, technique, fundamental principle, special case, graphic model, construction designs, construction technical expertize
To form a knowledge base, a systematic analysis of patentable technologies and equipment for handling spent nuclear fuel was carried out. In the analysis, intellectual knowledge bases were formed regarding the technology and equipment objects being improved or replaced, taking into account their role in the end-to-end technologies and related operations of these processes. The research results showed the effectiveness of the formation of a knowledge base and its use for the synthesis of new intellectual property. As a result of the work done, new technical solutions were found regarding the design of containers for transporting and storing spent nuclear fuel from nodular cast iron. The significance of the solutions found is confirmed by obtaining patents for invention in their respect.
Keywords: spent nuclear fuel, patent, transportation and storage, transport and packaging containers
This article discusses the use of regression analysis in violation of the assumption of the normal distribution of observations. The analysis of the following work illustrated that the theoretical distribution of observations may differ significantly from practical research if normal law is rejected. To solve this problem, which is one of the central ones in statistical analysis, stable estimation methods were studied and applied. Based on the results obtained, a software product was developed that implements this statistical method.
Keywords: Normal law distribution of observations, stable estimation methods, M-estimates, software implementation
An analysis of micromovements causing a turboprop effect or a micro-Doppler was carried out, analysis of model input data for building a function bank was performed, an algorithm for reducing the effect of a turboprop effect was considered, the expediency of forming a similarity function for the subsequent reduction of the effect of micromotion on an object
Keywords: spectrum; radar; echo signal; turboprop effect; gliding component, micro-Doppler, radar
TThe processes of creating a composite metal-thermal fuel, obtained on the basis of domestic mineral resources of the Batken region is investigated in this article. The bauxites of the Kadamzhai deposit in the Batken region were studied and the percentages of chemical elements in bauxite were determined. It is shown that the researched bauxite consists of mainly from aluminum (61.2%) and iron (30.2%). We obtained ferroalloy and other secondary substances in the process of metallothermic reactions and composite metal-thermal fuel was obtained according to the following scheme: the raw materials were dried to constant weight; grinded to a powder and fractionated through a sieve (50-250 mm) in size; weighed the composite mass composition in percent; ferromanganese alloys and secondary substances were obtained through the metallothermic method; The physicochemical analysis on the content of manganese and iron from the composition of the ferromanganese was studied by the potentiometric method. Ferroalloy (ferromanganese) and by-products (potassium glycerate, aluminum nitrate) based on bauxite of the Kadamzhai deposit in the Batken region were obtained. It is shown that the percentage of manganese in the composition of ferromanganese is 69.2%. To study the content of manganese from the alloy (Ferromanganese), the universal ion meter EV-74 was used equipped with glass and calomel electrodes (chlorine-silver).
Keywords: Thermal effect, optimization, composite, conditions, of the mettalothermic reaction, composition fraction, drying, oxide, fuel, ferroalloy ferromanganese, spectrograph, photographic plate, photometer, ionomer, calibration
The paper deals with the theoretical substantiation of the directional properties of the antenna arrays of a parametric profilograph intended for installation on an underwater uninhabited apparatus. A feature of such systems is the structural limitations of the overall dimensions of the carrier, which do not allow the antenna system to be implemented on the principles of linear hydroacoustics in the radiation mode. To solve this problem, we simulated the directional properties of the antenna arrays of the pump converter of a parametric profilograph. The directivity characteristics calculated for the center frequency of pumping in the diametral and traverse planes make it possible to take into account the expansion of the directivity of the radiating antenna when compensating for specified angles. The obtained values of the estimation of the change in the directivity characteristic by the level of 0,7 make it possible to ensure the necessary axial concentration ratio of the radiating antenna of the profilograph for each of the working frequencies.
Keywords: parametric profilograph, bottom survey, pumping antenna, directional characteristic, scanning, side-lobe level
The paper deals with the optimization of characteristics and justification of the directional properties of the receiving antenna of a parametric profilograph. A feature of such systems is their performance in the form of a separate receiving channel, providing high sensitivity, the possibility of matching with the receiving-amplifier path and the best signal-to-noise ratio. In addition, the receiving antenna must provide for the required overall limitations the required angular resolution in the entire sector of the review. In solving these problems, the simulation was performed on the directional properties of the antenna receiving antenna. The issues of optimizing the layout of the antenna system and the use of cylinders on the transverse piezoelectric effect as elements of the receiving antenna are considered. The question of eliminating the influence of the thickness of the fill of the receiving antenna on the transparency coefficient is considered, which allows to ensure the necessary sensitivity of the receiving antenna.
Keywords: Kirichenko I. A.
Developed approaches to measure the structural organization of systems. The concept of entropy expands and acts as an asymmetric criterion for the systems complexity. The necessity of a nonequilibrium approach to describing the interaction of physical structures and the possibility of interpreting entropy as a measure of the structural diversity of systems is shown. The validity of this approach is confirmed by a number of examples of the evolution of different systems, the structural distributions of the elements of which play an important role in modeling physical and physicochemical processes. Theoretical aspects are based on the fundamental work of D. Gibbs and L. Boltzman. The information content of the entropy concept correlates with the well-known “complementary” factor - coentropy. In this work, the evolution curves of complex systems are constructed as dependencies on statistical diversity. The symmetry of the functions of the density of entropy and coentropy with respect to the bifurcation points is discussed. It is shown that two-phase systems “liquid – vapor”, “crystal – melt” are characterized by inversion of evolutionary trajectories.
Keywords: entropy, negentropy, koentropy, orderliness measure, structural variety, normal distribution, dissipative systems, asymmetric structure, orthogonal distributions, dependence inversion
Experimental studies on the formation of nanoscale structures on the surface of gallium arsenide were carried out. To obtain a modified layer on the substrate surface, the method of focused ion beams was used, and the method of plasma-chemical etching was used for the subsequent formation of structures. According to the research results, structures with a width of 90 to 196 nm and a depth of 2 to 9.6 nm were formed. The results of the studies can be applied as structures for the subsequent formation of quantum dots during molecular beam epitaxy.
Keywords: Nanotechnology, focused ion beam, plasma treatment, atomic force microscope, GaAs
The paper describes the implementation of a fiber-optic single-channel vibration sensor built on the basis of two fiber Bragg gratings, a broadband source, a photodetector and a sound card of a computer used as an ADC
Keywords: vibration, fiber optic sensor, fiber Bragg grating, Fourier transform