Control of unmanned aerial vehicles during fire situation monitoring

Evdokimenkov, V. N.; Kim, Nikolay V.; Kozorez, D. A.; Mokrova, M. I.

doi:10.13111/2066-8201.2019.11.s.7

Cited by 8 publications

(3 citation statements)

References 0 publications

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“…Moreover, the solution to this problem should be of an optimization nature, and various parameters can be selected as the criterion of optimality depending on the circumstances. 1,2 Furthermore, it is rather difficult to indicate the boundaries of the characteristics when one or another criterion of optimality should be selected due to the complexity of formalization, this is a problem whose solution requires a separate scientific study. 3 In this regard, in order to solve the problem of choosing the optimal route in a smoky building, it is advisable to propose many existing ways to identify hazardous areas in a building in the case of a fire, from which one should choose the most preferable based on an assessment of the current situation.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Multicriteria analysis of firefighter routes in buildings in the case of a fire

Nguyen¹,

Topolsky

Tarakanov

et al. 2020

Journal of Defense Modeling & Simulation

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In buildings, in case of fire, the forming of routes is of primary importance and will make it possible to identify areas that collapse or allow smoke to spread, eliminating potential threats. These include locations with people who were in the building at the beginning of the fire or explosive objects of mainly domestic use. The purpose of the research is to determine the main criteria when the route of firefighter groups is based on minimizing the likelihood of getting into dangerous situations and increasing the efficiency of firefighting. It mainly used the simulation method, which required setting the problem in conditions when not only were the foci of smoke spread and the fire itself not completely known, but also situations where another firefighter group could stay in the building. It was determined that the criteria that must be taken into account when forming the firefighters’ route in the building, met the requirements for the route formation in the event of a collision with other firefighter groups and determined the likelihood of synchronous movement when detecting dangers not previously anticipated when monitoring factors.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Multicriteria analysis of firefighter routes in buildings in the case of a fire

Nguyen¹,

Topolsky

Tarakanov

et al. 2020

Journal of Defense Modeling & Simulation

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“…To study the density, porosity and thermal conductivity, the coating on the samples was formed from the end surfaces. For gasdynamic tests, the coating was formed on all surfaces of the samples [14], [15]. The test results of samples with antioxidant coatings are presented in Table 1.…”

Section: A Manufacturing Technology Of Model Rcnmentioning

confidence: 99%

Development of Manufacturing Technology of Nozzles from Composite Materials during Radiation Cooling

Sha¹,

Rabinskiy²,

Utkin³

2021

International Journal on Advanced Science, Engineering and Information Technology

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Carbon-carbon composite materials (CCCM) are a new class of structural materials designed to create light, durable, and space-based rigid structures for aerospace, hypersonic, gas turbine engines, parts of nozzle blocks, rocket combustion chambers, and transition trusses. They have the unique ability to maintain high strength and stiffness with 2500°C. For the manufacture of thermally stressed parts of nozzles, carbon fiber fabrics are used. Antioxidant coatings based on tantalum and silicon are applied to nozzles with adhesive (made based on tantalum carbide, which provides high mechanical strength of adhesion of erosion-resistant antioxidant coating with CCCM), antioxidant and erosion-resistant layers. To deposit a layer of tantalum carbide on CCCM, we used the technology of vacuum ion-plasma deposition of tantalum film followed by carbonization with carbon. As a result, an adhesive coating of tantalum carbide is formed on the surface of the packing. Obtaining an erosion-resistant antioxidant coating on the adhesion layer of tantalum carbide is obtained by applying a slip of silicon carbide powders and soot. The study of the performance of antioxidant and erosionresistant protective coating in high-temperature airflow was carried out on plasmatron (it is a plasma generator in which an electric current is used to form a plasma; for cooling it, channels washed by water are used). This article shows that the studied packings have a unique ability to maintain high strength and rigidity with 2500°C. There is the expediency of manufacturing such nozzles. The physical and mechanical characteristics of the material were determined.

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“…However, most of them did not meet the requirements, the main of which were the nonmeltability or ease of imparting it, the yield of the finished fiber, and its high performance. At the same time CCCM contain a carbon reinforcing element in the form of discrete fibers, continuous filaments, and bundles, as well as various volumetric frame structures (Song, 2009;Babaytsev et al, 2017;Akhmetzhanov et al, 2018;Yin et al, 2018;Evdokimenkov et al, 2019a;Evdokimenkov et al, 2019b;Formalev et al, 2019;Stepashkin et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Experimental Studies of Heat and Mass Transfer From Tip Models Made of Carbon-Carbon Composite Material (Cccm) Under Conditions of High-Intensity Thermal Load

Sha¹,

Utkin²,

Tushavina³

et al. 2020

PTQ

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Carbon-carbon composite materials are characterized by high heat resistance and thermostability for which they, in most of their physical and mechanical characteristics, can be attributed to the most promising materials. Approximately 81% of all carbon-carbon composite materials are used for the manufacture of brake rotors for aircraft, 18% – in space rocket technology, and only 1% – for all other areas of application. While the need for composites for rocket and space technology is constantly decreasing – the volume of production of brake disc rotors for aircraft is steadily growing, and therefore research on the properties of carbon-carbon composite materials (CCCM) under conditions of high-intensity thermal loading is extremely urgent at the moment. In this paper, we consider a method for introducing silicates and oxides hardening them with the addition of refractory, chemical elements into CCCM. Tests of tips from CCCM were carried out under conditions of high-intensity thermo-force loading. The objectives of the experiment were to obtain scalded forms of the tip model and to record the temperature on the surface during the action of a jet flowing out of the nozzle of the propulsion system (PS). The tip of the CCCM is blown by means of a propulsion system with a supersonic flow of a highly enthalpy oxygencontaining gas. The results of experimental studies were determined using video recording on the basis of which sequences of frames were obtained on the basis of which the burning forms were built. Using thermal imaging measurements, the temperature field on the model surface was determined during the entire time the supersonic gas flow was exposed to it.

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Control of unmanned aerial vehicles during fire situation monitoring

Cited by 8 publications

References 0 publications

RETRACTED: Multicriteria analysis of firefighter routes in buildings in the case of a fire

RETRACTED: Multicriteria analysis of firefighter routes in buildings in the case of a fire

Development of Manufacturing Technology of Nozzles from Composite Materials during Radiation Cooling

Experimental Studies of Heat and Mass Transfer From Tip Models Made of Carbon-Carbon Composite Material (Cccm) Under Conditions of High-Intensity Thermal Load

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