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Key words:

assessment, stability, territory, indicator, material and technical support, grouping of troops

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The article considers a methodological approach to the logistic and integration assessment of the stability of the logistics system of a group of troops (forces) in new regions of the Russian Federation. The proposed methodological approach provides a comprehensive view of the current state and dynamics of the effectiveness of the logistics support system for the deployment of troops (forces) in the new territories of Russia, and allows us to track threats. According to the author, the scientific novelty of this article lies in a new approach to assessing the stability of the logistics support system for a group of troops (forces) in new territories, based on a phased logistic and integration assessment, which involves the selection and justification of a system of integrated indicators to assess each functional component of the military-economic stability of the logistics system.

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Key words:

forecasting functioning parameters, exponential smoothing method, discounting retrospective data

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The article proposes a mathematical apparatus adapted to predict the operating conditions of the elements of the reconnaissance and fire system of missile forces and artillery in modern high-tech military conflicts. The main idea of the proposed approach is based on the assumption that the law of change in the predicted parameter (variable) identified in the retrospective section will remain for a certain period of time in the future. This approach provides a more accurate forecast of the functioning parameters of the reconnaissance and fire system of missile forces and artillery. The main feature of the proposed provisions is to take into account the frequent change in the opponent's tactics of action. It is provided by the use of a mathematical apparatus for discounting retrospective data, which allows you to differently take into account and evaluate new data and information that is outdated to date.

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complex technical system, genetic algorithm, Pareto front, technical requirements, technical task

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The article proposes a genetic algorithm for substantiating requirements for the characteristics of complex technical systems, based on the multicriteria optimization algorithm SPEA2. The basic algorithm is modified to solve the inverse problem of parametric synthesis. To ensure the uniformity of the resulting Pareto front, an approach is used based on the k-means clustering method, the essence of which is to combine several closely located solutions into one cluster and then replace them with one solution located in the center of the cluster. The article provides a numerical example of substantiating the characteristics of a multi-satellite orbital constellation for remote sensing of the Earth. The proposed algorithm can be used at the stage of developing technical specifications for carrying out research and development work to create complex technical systems when preparing the section «Technical requirements for the product».

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Key words:

throughput, repair body, system, workload, military equipment

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The article substantiates the technical tools for solving the urgent problem of the capacity of the repair body in the military equipment restoration system and reveals in more detail the steps for determining a sufficient number of repair departments located at various levels. With a small number of departments, the level of capacity of the repair body will not allow restoring all incoming military equipment during the next accumulation cycle (day of hostilities), which leads to an increasing workload of the repair body. The key direction for the prompt decision-making on the repair of damaged samples of military equipment is the calculation of the required number of repair departments for the repair of various samples of military equipment, but also, depending on their workload, determining the location of their placement in the repair body of various levels.

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radio communication network, electromagnetic compatibility, radio frequency spectrum, frequency planning, attenuation and fading of radio waves, probability of communication

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The article is devoted to the issue of creating a radio communication network model that allows taking into account the composition of the object of study, problems of electromagnetic compatibility of radio electronic equipment, as well as the conditions of propagation and accounting for fading of radio waves. The statement of the problem, input and output data of the model, as well as the algorithm for its creation are shown. The method of representing the radio communication network model as a set of radio networks with an array of data that gives a complete idea of the object under consideration from the point of view of radio frequency spectrum management, as well as calculating the value of the probability of communication as an indicator of electromagnetic compatibility is considered.

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the dynamics of changes in working capacity, the performer of topographic, geodetic and cartographic work

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The factors influencing the dynamics of changes in the working capacity of the contractor of topographic, geodetic and cartographic works are considered, a model of the dynamics of changes in the performance of topographic, geodetic and cartographic work, which analyzes the factors that have a significant impact on the performance of topographic, geodetic and cartographic work. Determination of fatigue values when affecting the performance of the performer. Model is given of the dynamics of changes in the operability of human-machine complex operators, taking into account rehabilitation periods. Rational physiological justification of the operator’s mode of operation, such as alternating work periods, periods of switching to other activities and rest. Dependencies that allow us to analyze the impact of various parameters on the performance of performers of topographic, geodetic and cartographic work, ranging from the intensity and complexity of their activities, and ending with working conditions.

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convoy, combat guard, sabotage and reconnaissance group (SRG), mathematical expectation, standard deviation

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A dependence has been obtained that makes it possible to determine the optimal time to counter the convoy's combat guard (CG) during an attack by a sabotage and reconnaissance group (SRG). The counteraction time depends both on the characteristics of the damaging effect and the functioning of the CG weapons, and on the generalized characteristic of the DRG counteraction (the readiness of the CG suppression by the enemy — π). By setting a specific value for the level of suppression reliability, it is possible to calculate the permissible firing time of the CG. The value of π can be determined both using the relations of the theory of combat effectiveness, and based on the processing of statistical data from the experience of war and a survey of experts. This dependence can be used to justify the tactics of escorting logistics assets in the area of combat operations, as well as to determine the rational tactical and technical characteristics of weapons.

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Key words:

special purpose optical transport networks, spectrum lease, spectrum resource, unauthorized impacts

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Thanks to transition to flexible frequency grid and rapid development of spectrum switching and routing technologies in optical networks, a new physical layer telecommunication service — spectrum leasing — became available, which is a generalization and development of another service — wavelength leasing. A number of advantages associated with the possibility of flexible channel structure management in the conditions of changing requirements to the bandwidth capacity of communication directions makes spectrum leasing an attractive solution for the construction of optical transport networks for special purposes, but requires additional research of possible risks associated with multiple access of users to the elements of the infrastructure of telecom operators. The article considers the application of the developed model on the basis of a new type of telecommunication services operating under conditions of possible unauthorized impacts.

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SMF, missile compound, missile regiment, SRT, neural network, green berets, Armed Forces of the Russian Federation

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The article considers the possibility of using neural networks to create a systematic approach to mathematical modeling of countering enemy forces during a march. It describes how neural networks can be used to simulate the likely outcome of a battle during movement. The article also describes the key subsystems necessary for mathematical modeling of the features of combat operations during the march. Possible solutions of formalized tasks for the column control subsystem, the subsystem of basic weapons of destruction, the subsystem of combat support, the subsystem of logistics and the subsystem of determining geographical features of the area are described. Finally, a tool is offered that can help commanders justify their decisions during the march.

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Key words:

probability of frame error, OFDM-modulation, noise immunity, unintended pulse interference, linear frequency modulation

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The article presents the results of a study of the noise immunity of an OFDM-signal receiver against the background of unintended pulse interference with linear frequency modulation. The research was carried out using analytical and simulation modeling. The study took into account the frame structure of the received signal, differences in the receiver’s noise immunity during reception of various frame elements. The probability of a personnel error was used as an indicator of noise immunity. Studies have been conducted for different ratios of the average signal power to the average interference power, different pulse durations of unintended interference, and different rates of change in the frequency of unintended interference pulses. It is shown that the noise immunity of the receiver of OFDM-signals is influenced not only by the ratio of signal power and unintended interference, the pulse duration of unintended interference, but also by the rate of frequency change of a linearly frequency modulated signal of unintended interference.

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Key words:

explosion protection device, mobile explosion localization complex, air shock wave, excess pressure in the front of an air shock wave

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The issue of creating a mobile explosion localization complex based on the standard explosion protection device «Fontan-1» model 20K using a transport trolley is considered. Based on experimental studies, it is shown that the mobile explosion localization complex based on the standard protection device «Fontan-1» model 20K, placed on a special transport trolley, provides an effective reduction in the level of excess pressure in the front of an air shock wave at a standard distance for the standard protection device «Fontan-1» model 20K and can be used by explosive experts to solve problems of isolating explosive objects with their subsequent destruction during terrain clearance and humanitarian demining.

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explosion-proof urn, explosive object, damaging factors of explosion

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An analysis was carried out of the use of bins (containers) for collecting household waste to commit illegal acts of a terrorist nature. The designs of explosion-proof urns of open and semi-open type are considered for localizing the damaging factors of an explosion, which include fragments, shock waves and detonation products. Shown, that the disadvantage of the design of open-type explosion-proof urns is the presence of flame and thermal effects, which limit the use of such urns indoors and near infrastructure. In order to eliminate the thermal impact of an explosion on infrastructure facilities and reduce the mass of the explosion-proof urn, a variant of the urn was proposed in the form of a non-metallic shell, the intermediate cavity of which is filled with a gas-liquid dispersant, equipped with a special lid.

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mine protection, lower limb protection, mine protection platform, fragmentation protection, ultrahigh molecular weight polyethylene, RUSSIL

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The article presents the results of the development and testing of prototypes of individual means of mine protection of the lower extremities. The prototypes are a platform for reducing the impact-crushing effect of an explosion with anti-fragmentation gaiters to protect against fragmentation flow. Several design variants of personal protective equipment have been developed and tested. The tests were carried out in landfill conditions using a mechanical dummy (an indestructible simulator of the lower limb) and calibrated explosive charges. The forces and accelerations transmitted to the simulator with a standard boot were experimentally determined. Based on the results obtained, conclusions are drawn about the viability of the designs of individual mine protection equipment for the lower extremities and further ways to improve them.

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Key words:

training control room, training of military specialists, automated laboratory emulation bench

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The article discusses the issue of creating a training command post, which is an organized automated workplace (or a combination of them) for information and analytical work to support decision-making based on visualization of operational information and its analytical processing and providing collective actions of a group of people when solving management problems both in real and in training time. Features of operation of the training control room, its main tasks, levels and elements are described, standard operating modes are considered. It is proposed to operate a training control room in conjunction with an automated laboratory stand for emulating control processes, when solving group decisionmaking tasks, to form appropriate competencies for working with control systems.

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Key words:

aerosol, visibility, generator, smoke, curtain, scale effect, shape

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The results of physical and mathematical modeling of an aerosol curtain in a guarded room during the combustion of pyrotechnic composition are presented. The large-scale effect of increasing the lifetime of an aerosol curtain with an increase in the volume of the room and a constant range of visibility in smoke is demonstrated. The effect is due to an outstripping increase in the amount of heat injected into the room with smoke (in proportion to the volume of the room) compared to the amount of heat released into the walls, floor and ceiling of the room when the smoke cools (in proportion to their area). The influence of the shape of aerosols on the characteristics of an aerosol curtain is shown. The demonstrated large-scale effect should be taken into account both when evaluating the test results of aerosol generators and when planning the use of aerosol generators in protected areas.

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Key words:

multilayer coating, manufacturing defect, defect, rationing, failure, limit condition

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The reliability and survivability of special-purpose equipment depends on the quality of the coatings applied to it. Improving the quality of the coating is achieved by its layerby-layer formation from single layers of small thickness. The production defectiveness of a multilayer coating depends on the structure parameters: the number of single layers and the thickness of a single layer. Standardization of production defects in coatings was carried out. A method for assessing the production defectiveness of a coating is proposed, taking into account the danger of various types of defects. A stochastic mechanism for the formation of defects in the coating has been developed. Expressions are obtained for the theoretical determination of the parameters of the structure of a multilayer coating, taking into account its production defects. The influence of manufacturing defects in the coating on the number of single layers and the thickness of a single layer is shown.

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operational properties of the power supply system, availability coefficient, Joule—Lenz law, temperature coefficient of voltage, generator set with pulse voltage regulation, electrolyte temperature

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All climatic regions of the Russian Federation, except temperate, create special conditions for the operation, storage, maintenance and repair of military vehicles, which must be taken into account when organizing operation. Special conditions are usually characterized by a combination of unfavorable factors. The regions of the Far North are characterized not only by low ambient temperatures and winds, but also by off-road operation and, as a result, low-speed movement, which has an extremely negative effect on the operational properties of the power supply system. The article describes an algorithm for implementing a methodology to ensure the improvement of the operational properties of the power supply system for military vehicles used in the Far North.

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prototyping, additive technologies, mechanical properties of materials, prototyping, reinforced thermoplastics, 3D printing

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The article examines the possibility of using thermoplastics reinforced with carbon, glass and mineral fibers. The results of tests on the physical and mechanical properties of finished products printed on an FDM type 3D printer are presented. Based on the data obtained, the analysis of the mechanical properties of reinforced thermoplastics was carried out. The discrepancy between the mechanical properties declared by the manufacturer and the real ones is shown. It was found that reinforcement in most cases had a negative effect on the physical and mechanical properties of the products. Based on the data obtained, it is concluded that such materials are not recommended for the production of products requiring high mechanical characteristics, however, due to the increased external sinterability, they can be used in decorative and undemanding products with mechanical properties. New directions of research in the field of studying the physico-mechanical properties of thermoplastics have been identified.

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