MODELING THE INFLUENCE OF A TEMPERATURE SHOCK ON THE MOTION OF A TECHNOLOGICAL SPACE VEHICLE

2020 ◽  
Author(s):  
Denis Orlov
Keyword(s):  
Space Vehicle ◽  
Technological Equipment ◽  
Temperature Shock ◽  
Small Spacecraft ◽  
Technological Processes ◽  
Technological Space

The article is devoted to solving the problem of assessing additional microaccelerations arising as a result of a temperature shock when a small spacecraft leaves the Earth's shadow and dives into it, in order to develop recommendations for controlling the level of microaccelerations in the area of technological equipment intended for the implementation of gravitationally sensitive technological processes on board. small spacecraft

scholarly journals Intelligent control systems using algorithms of the entropie potential method

2021 ◽  
Vol 2094 (2) ◽  
pp. 022030
Author(s):  
O A Jumaev ◽  
J T Nazarov ◽  
G B Makhmudov ◽  
M T Ismoilov ◽  
M F Shermuradova
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Control Systems ◽  
Intelligent Control ◽  
Moving Objects ◽  
Potential Method ◽  
Technological Equipment ◽  
Network Systems ◽  
Technological Processes ◽  
Intelligent Control Systems

Abstract As part of neural network systems, an artificial neural network can perform various functions like diagnostics of technological equipment, control of moving objects and technological processes, forecasting situations, as well as assessing the state and monitoring of technological processes.

An Analysis of the Influence of the Properties of Nanodispersed Systems on the Design of Technological Equipment

2020 ◽  
pp. 3-12
Author(s):  
A.A. Popova ◽  
I.N. Shubin
Keyword(s):  
Manufacturing Industry ◽  
Design Parameters ◽  
Process Time ◽  
Technological Equipment ◽  
Mixing Process ◽  
Mixing Processes ◽  
Factors Affecting ◽  
Shape Coefficient ◽  
Technological Processes

Currently, there is a large number of dispersed and nanodispersed materials used in the manufacturing industry. They have various physicomechanical and physicochemical properties that have to be taken into account when developing and using various technological equipment as well as during technological processes. One of the main technological processes is mixing. Being sometimes auxiliary, this process is widely used in many industries, and, ultimately, determines the quality of the finished product. The influence of the rheological properties of the components to be mixed, both on the process of preparing the mixture and on the design of the equipment, has long been known. However, it is challenging to design mixing processes and mixers without taking into account such characteristics of dispersed materials as density (bulk and intrinsic), particle size and shape, coefficient of internal and external friction, hygroscopicity, adhesiveness as well as others. Usually, when considering technological processes and developing equipment, the issues of productivity, process time, energy consumption are given priority. At the same time, the influence of geometric parameters of the equipment on the mixing process and the dynamics of the movement of dispersed materials in the reaction volume has not been sufficiently studied. To address this issue, the authors examined the mixing process of dispersed materials of various sizes and bulk density using the example of a gravity mixer. The main factors affecting the quality of mixing and design parameters of the equipment for processing dispersed materials were established. Practical recommendations are given for specialists involved in the design of mixing equipment. These recommendations are general in nature, since it is problematic and indeed erroneous to give specific recommendations due to the large variety of dispersed materials and, accordingly, their physical and mechanical characteristics, as well as the equipment features.

scholarly journals Research of Financing Technological Equipment in Process of Loading and Transportation of Sand and Gravel/ Výzkum Financování Technologických Zařízení V Procesu Nakládání A Dopravy Štěrkopísků

2012 ◽  
Vol 58 (4) ◽  
pp. 35-40
Author(s):  
Lucie Kučerová
Keyword(s):  
Questionnaire Survey ◽  
Common Reason ◽  
Technological Equipment ◽  
Technological Processes ◽  
Industrial Companies ◽  
Technology Investments ◽  
Sand And Gravel ◽  
Interesting Area

Abstract This paper deals with the issue of financing technology investments. Specifically, it concerns the process of loading and transportation of sand and gravel. The research was conducted through a questionnaire survey. The main objective of this paper is to identify financing sources used for the process of loading and transportation of sand and gravel in selected companies. Another objective was to evaluate whether the selected industrial companies outsource the process of loading and transportation or not. If so, it was then necessary to find out the most common reason for that decision. The issues of financing technological processes in loading and transporting sand and gravel is an interesting area that has not yet been mapped.

Evaluation of the Effect of the Difference between the Real Attachment Unit and the Sealing in the Study of the Stress-Strain State of the Solar Panel of a Small Spacecraft as a Result of a Temperature Shock

2022 ◽  
Vol 904 ◽  
pp. 27-33
Author(s):  
A.V. Sedelnikov ◽  
V.V. Serdakova
Keyword(s):  
Strain State ◽  
Scientific Paper ◽  
Longitudinal Force ◽  
Solar Panel ◽  
Stress Strain ◽  
Temperature Shock ◽  
Small Spacecraft ◽  
Stress Strain State ◽  
Solar Radiation Flux ◽  
The Difference

The author of this scientific paper studies the stress-strain state of the solar panel of a small spacecraft after a temperature shock. The temperature shock is caused by the entry or exit of a small spacecraft into or out the Earth's shadow. In this work is considered a one-dimensional model of thermal conductivity. It is assumed that the solar radiation flux falls properly on the solar panel. Violation of normality due to deformations is neglected. A special feature of this work is to take into account the actual fixing of the solar panel. The boundary conditions in the form of a seal are preserved. However, the mobility of the smallest spacecraft is taken into account as a result of the occurrence of a longitudinal force in the solar panel during a temperature shock. The results are compared with the simulation data without taking into account the mobility of the small spacecraft. The results of this work can be used in the design of small spacecraft for technological purposes to meet the requirements for microaccelerations.

Means of refueling gas'filled cars. Lecture № 7. Part 5. Features of operation of mobile automobile gas filling stations with liquefied petroleum gas (LPG)

2021 ◽  
pp. 195-215
Author(s):  
V.I. Erokhov
Keyword(s):  
Schematic Diagram ◽  
Technological Equipment ◽  
Liquefied Petroleum Gas ◽  
Technological Processes ◽  
Filling Station ◽  
Gas Station ◽  
Characteristic Features ◽  
Safety Features ◽  
Station Safety

Features of operation of the mobile automobile gas filling station (PAGZS) of the liquefied petroleum gas (LPG) are given. A schematic diagram of the planning solutions of the mobile gas station is given. The procedure for refueling vehicles is described. A feature of the operation of the refueling complex on the basis of a mobile gas station is given. The characteristic features of operation and malfunction of the technological equipment of the mobile gas station are given. The safety features of the technological processes of the gas filling station are summarized. The features of gas station maintenance are described. The features of the system of accounting and release of LPG are described. Keywords liquefied petroleum gas; planning solutions; mobile gas filling station; gas filling station operation; gas equipment; LPG refueling; malfunctions and maintenance; gas filling station safety

ОСОБЛИВОСТІ СЕРІЙНОГО ВИРОБНИЦТВА РЕГІОНАЛЬНИХ ПАСАЖИРСЬКИХ ЛІТАКІВ АН-148 ТА АН-158

2019 ◽  
pp. 125-143
Author(s):  
С. А. Бичков ◽  
О. Д. Донець ◽  
В. Г. Читак
Keyword(s):  
Production Management ◽  
Technological Equipment ◽  
Mechanical Assembly ◽  
New Production ◽  
Batch Production ◽  
Technological Processes ◽  
Central Computer ◽  
Production Processes ◽  
Systems Requirements ◽  
Aircraft Production

The main results and peculiarities of putting the family of regional passenger airplanes An-148/An-158 into the batch production are presented. Based on the results of audits of the Aviation Register of the Interstate Aviation Committee and the State Aviation Service of Ukraine the complex of works that had been performed allowed to obtain approval for putting of airplanes into the batch production. The production is carried out in accordance with the requirements of «Guidelines21.2Cfor the Certification and Supervision of Aircraft Production», «Guidelines 21.2D of Certification and Control Procedures over the Civil Aircraft Production», Standards ISO9001-2009 and EN9100 of «Quality Management Systems. Requirements». The functioning of the quality system is constantly monitored by internal inspections.To put the AN-148-100/158 airplanes into the batch production: technological preparation of production for about 65 000 parts, units and assemblies has been made; more than 19 300 items of special technological equipment and tools have been designed and manufactured; more than 75 000 sets of design documentation for the processes of manufacturing, assembling, controlling and testing parts, units, assemblies and systems of airplanes have been worked out; new technological processes in the forging and stamping, mechanical assembly production, aggregate and assembly manufacturing have been completed, improved and implemented; advanced metalworking tools have been tested and implemented in the production; works on restoration of efficiency and improvement of technological equipment have been performed; new technological processes of manufacturing parts and units on numerically controlled programmable machines have been completed and implemented; complex manufacturing and new production processes of manufacturing products from composite and nonmetallic materials, forging and stamping products, foundry and thermal production have been completed and implemented; new equipment and production processes of welding have been mastered and implemented; the information infrastructure of the company has been organized and is being developed; an integrated automated production management system (ASC) has been developed. It functions based on the main data scope computation on a central computer capable to connect users to view the data; automated workplaces based on personal computers have been organized; measures on recruitment and training of the personnel have been organized and carried out.

Modeling the temperature shock of elastic elements using a one-dimensional model of thermal conductivity

2020 ◽  
pp. 2050060
Author(s):  
D. A. Belousova ◽  
V. V. Serdakova
Keyword(s):  
Thermal Conductivity ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Temperature Shock ◽  
One Dimensional ◽  
Small Spacecraft ◽  
Proposed Model ◽  
Direct Approximation ◽  
Elastic Elements

This paper considers the task of evaluating micro-accelerations arising due to the temperature shock of large elastic elements when a small spacecraft leaves the Earth’s shadow. In this case, a one-dimensional model of thermal conductivity is used. Its solution was obtained by the method of direct approximation with the construction of difference schemes. It is shown that the accuracy of estimating micro-accelerations is commensurate with the accuracy of solving by a three-dimensional model of thermal conductivity. The proposed model allows reducing the time to obtain estimates and significantly simplifies the task at hand. The results of the work can be used in the formation of the dynamic characteristics of a small spacecraft for technological purposes.

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