The article presents the investigation of ultrasonic treatment influence on the size of the stearylamine floccules in the aminobutyric emulsion and on the stability of received emulsions. It was found that the amine floccules in the original aminobutyric emulsion have a bimodal size distribution with small particles predominantly 900 nm and large particles with size of 5500 nm or more. It was identified that ultrasonic treatment leads to decrease the stearylamine floccules size in 13-25 times, dimensions of obtained floccules are between 35 and 220 nm. The dynamics of size changes of stearylamine floccules was studied. The stearylamine floccules were obtained in aminobutyric emulsions after the ultrasonic treatment with an intensity of 15-30 W/cm2. It was found that after ultrasonic dispersion the process of amine floccules agglomeration takes place, the duration of this effect depends on the intensity of treatment.

Keywords: ultrasonic treatment, aminobutyric emulsion, stearylamine floccules, floccules dimensions, emulsion stability

In developing training tools thermal units, assemblies and systems of machines operating at low temperatures below zero, should pay more attention to the monitoring of their thermal state. At this point, there are many ways to measure the temperature. All of them are divided according to the principle of action. There are a large number of sensors for measuring temperature, based on these principles. However, when building automation means of thermal preparation machines play a special role performance sensors of different design when used in automation nodes to determine the temperature units, assemblies and systems of machines. At this point in the design automation received widespread microcontrollers, comparators, and which comprise analog-digital converters in a single chip, and also capable of converting analog electric quantities into digital form. This ensures high accuracy.

Keywords: thermal state thermal training machine, temperature measurement, a semiconductor sensor, a thermistor, a thermocouple, a microcontroller, an analog-to-digital converter

This paper describes the method of calculating the optimum amount of a dispatcher for ambulance stations . As a criterion of optimality selected the lack of a queue on the telephone line when referring to the dispatcher. Original data in the calculation are the average daily flow of orders and average time of ordering dispatcher. The authors developed by the computer program, which allows to calculate the optimal amount of air traffic controllers on the ambulance station . The works are executed in the order - to creative collaboration with Shakhtinskaya hospital emergency medical care of the VI Lenin.

Keywords: ambulance station , to the optimal amount of air traffic controllers , calculation methods

This article presents a summary of the system of car repairs on the technical condition. The urgency of the task. The technique of optimization of complex repair works in the form of an algorithm of iterative optimization process. Defined optimization criteria for this batch of units of the car. Indicate the main directions of further research on the improvement of technological processes of repair on an actual technical condition

Keywords: repairs on an actual technical condition, complex repairs, pre-diagnosis, optimization, taxonomy field, Tucson, cluster

Results of researches of electrochemical machining of Alnico and Х25К15 magnetic alloys are presented. Problems of conventional machining processes (cutting, milling, drilling and grinding) use a sharp cutting tool are noted. The expediency of use NaNO3 of electrolytes at high-speed anodic dissolution of magnetic work piece surfaces has been demonstrated. Agency of chemical and phase composition of magnetic alloys on a landform of a surface after the ECM in нитратных water electrolytes is installed. The gained results of experimental researches allow to control parameters of a technological process with given accuracy and speed of electrochemical machining of parts.

Keywords: high-speed anodic dissolution, magnets cast constants, alnico, electrochemical machining (ECM), surface roughness, current efficiency, electrochemical marking

Abstract: Operation of motor transport and special equipment is carried out in difficult conditions, the impact of environmental conditions (temperature, humidity, dust, wind, solar radiation) and changes in modes of operation of the machine. This affects the performance of equipment, the number and complexity of repairs. Away from fixed bases (in the field), the problem is particularly acute repairs. One of the most energy-intensive and expensive works are welding (welding parts with a break, welding cracks, fusing metal layer on the worn surface, metal cutting). In this work the welding equipment affect the voltage drops in the supply mains, therefore, produces a large number of failures such equipment. After the equipment is accompanied by an increased amount of electric power consumption, this results in material costs. Previously proposed equipment has improved mass, which reduces the efficiency of the welding. Based on this study was proposed innovative design welding inverter using the resonance effect, with enhanced reliability, low-cost design version (in terms of mass production). In order to improve the reliability and reduce the cost of the proposed design of inverter proposed a number of new approaches. Full-bridge inverter is studied welding power source with the implementation of the resonance effect with a stable and smooth operation, high reliability, because the circuit of the inverter is not sensitive to changes in the supply voltage.

Keywords: construction machinery, parts, low temperatures, thermal state, measurement, monitoring, control, sensor, hardware-measuring system

based on an analysis of the methods and schemes snow removal from roads and sidewalks it revealed that there is a snow plow, which would be cleaned in a single pass only the side of the road in the middle of the road cleared. At the same time to solve this problem are also two cars. In accordance with this work set a goal: increasing productivity snowplows. To explore this issue were based on the analysis of working bodies of snow plows developed and investigated a new type of dump actuator for snow removal from roads. It was determined that there is an additional resource to increase machine productivity. This is achieved by improving the design of the working body. This will not increase the resistance of the machine, because proposed symmetrical design with rotating blade and sliding half, which will reduce the resistance and to ensure stability.

Keywords: snow machine, snow removal from roads, snow removal scheme with roads, blade, working body

A significant number of units and special motor vehicles operated in a low freezing temperatures of the Far North and the Arctic. Preserving the art in these conditions depends primarily on the reliability of the internal combustion engine startup. For this purpose, a means of preparation of heat from external heat sources. In the context of the autonomous functioning of the machine it is necessary to use its internal sources. This can be accomplished using a heat recovery system of the internal combustion engine. To do this, include thermal batteries. In order to increase their efficiency (increasing the thermal capacity, reduce the size) Three constructions of the dual-chamber heat accumulator. To describe the heat transfer of the heat accumulator defines the conditions of uniqueness, according to which a simulation of thermal processes heat storage

Keywords: operation, heat storage, heat engine preparation, heat transfer, heat recovery system, low negative temperature

This article presents the results of studies of the reliability of the wheel bearing of the car VAZ-2190. Represented the company on the basis of which was made the collection of statistical information. The urgency of the research. Provide estimates of the reliability of the wheel bearing. The revealed dependence of the reliability of the bearing depending on mileage with the performance of the resulting graphs. Proposed recommendations to improve the frequency and changing the test object. Presents the findings of research. The ways for further research.

Keywords: repairs on an actual technical condition, repair works, pre-diagnosis, optimization, multidimensional taxonomy, the Manhattan metric

The paper is concerned with development of calculation procedure of residual forming of type parts "bush" by electric resistance surfacing with a wire (ERSWW) using the finite element method (FEM) based on the theory of non-isothermal plastic flow. The adequacy of the design model is confirmed by the experimental data. The developed calculation procedure of residual forming allows to predict the possible axial and radial movement of type parts "bush" by ERSWW of outer surfaces in a single layer, that allows to make a decision on the feasibility and appropriateness of technology ERSWW during restoring of type parts "bush".

Keywords: electric resistance surfacing with a wire; residual forming of type parts "bush"; finite element method; calculation procedure

the paper considers the comparison of natural modes for the first and second transverse oscillation modes obtained by numerical simulation and finite element package of analytical calculation of the core model with an elastic element based on the application of the Euler-Bernoulli hypothesis. The analysis compared waveforms for different values of the defect shows their satisfactory agreement.

Keywords: rod design, vibrations, defect, finite element modeling, analytical modeling, waveform

The main resources are a turbocharger units are bearing unit and elements of gas oil seals. The article discusses various ways to repair and restore parts of the turbocharger. One repair method is a method of installing additional details. A review of options for its use. Identified the strengths and weaknesses are identified technological features of application. It calculates the magnitude of interference when installing doolnitelnoy, ensures reliable operation in all modes of operation of the turbocharger.

Keywords: turbocharger, more detail, bearing assembly, deterioration, defect, tightness of the sleeve bearing, average body, turbocharged, thermal distortion

The paper discussed the mechanism of formation of polycrystalline hexagonal barium ferrite. The influence of alloying elements on the location of Fe3 hexagonal block R, on the border of hexagonal and spinel blocks (RS). It is shown that the presence of weakly diamagnetic ions or dopants in these positions provides specific properties of hexagonal ferrites and their practical use.

Keywords: hexaferrite barium, dopant, magnetic properties, the mechanism of formation, anisotropy, polycrystalline, magnetization, Mossbauer spectroscopy, the coercive force, Curie temperature

In article the comparative analysis of various versions of circuitry solutions of realization of devices of registration of ionic current, is made, theoretical justification of almost known advantages and shortcomings of the considered devices. In article are given the experimental data obtained at registration of a signal of ionic current by various devices. Is made processing of oscillograms and shown qualitative advantage of the device of registration of ionic current with the stabilized boost converter for the solution of problems of registration of a signal of ionic current with increased requirements to quality of a signal.

Keywords: internal combustion engine, signal of ionic current, energy, spark discharge, device of registration

In the article proposed indicator of the effectiveness of the implementation of an automated search of the optimal route of transportation of the wood. An example of evaluation of the dispatching process of extraction of timber from the cutting area, with example calculations for two cases. Conclusions are drawn about the possibility of its use for evaluating the effectiveness of information systems.

Keywords: logistics, wood transport, information systems, optimal route, economic efficiency, conditional profit.