Autonomous navigation of the space debris collector

Kozorez, D. A.; Kruzhkov, D. M.

doi:10.13111/2066-8201.2019.11.s.10

Cited by 5 publications

(2 citation statements)

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“…The video recording complex consists of a laptop, from which data of video cameras are recorded, a network cable-twisted pair (12), with which the laptop was connected to a fiber optic path, which consisted of analog-to-digital converters (13) and fiber itself (14). The cameras (16,17) were connected to an analog-to-digital converter using network cables-twisted pairs (15). The distance from the cameras and the thermal imager to the model was ~ 4 m. Both devices were located in a separate room next to the stand on an isolated foundation, which allowed to reduce the level of equipment vibration.…”

Section: Resultsmentioning

confidence: 99%

“…CCCM are characterized by high heat resistance and thermostability. With intense aerodynamic heating of the thermal protection of hypersonic aircraft, the properties of FMC can change (Bulychev and Kuznetsova, 2019;Ryapukhin et al, 2019;Kozorez and Kruzhkov, 2019;Shen et al, 2019). This is due to the processes of the dynamic interaction of a hightemperature gas flow with the surface of the material.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

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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show abstract

Heating of Components in the International Space Station

2020

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Solution of inverse non-stationary boundary value problems of diffraction of plane pressure wave on convex surfaces based on analytical solution

Egorova¹,

Kyaw²

2020

J Appl Eng Science

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Research in the field of unsteady interaction of shock waves propagating in continuous media with various deformable barriers are of considerable scientific interest, since so far there are only a few scientific works dealing with solving problems of this class only for the simplest special cases. In this work, on the basis of analytical solution, we study the inverse non-stationary boundary-value problem of diffraction of plain pressure wave on convex surface in form of parabolic cylinder immersed in liquid and exposed to plane acoustic pressure wave. The purpose of the work is to construct approximate models for the interaction of an acoustic wave in an ideal fluid with an undeformable obstacle, which may allow obtaining fundamental solutions in a closed form, formulating initial-boundary value problems of the motion of elastic shells taking into account the influence of external environment in form of integral relationships based on the constructed fundamental solutions, and developing methods for their solutions. The inverse boundary problem for determining the pressure jump (amplitude pressure) was also solved. In the inverse problem, the amplitude pressure is determined from the measured pressure in reflected and incident waves on the surface of the body using the least squares method. The experimental technique described in this work can be used to study diffraction by complex obstacles. Such measurements can be beneficial, for example, for monitoring the results of numerical simulations.

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Autonomous navigation of the space debris collector

Cited by 5 publications

References 0 publications

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

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

Heating of Components in the International Space Station

Solution of inverse non-stationary boundary value problems of diffraction of plane pressure wave on convex surfaces based on analytical solution

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