scholarly journals MATHEMATICAL MODELING OF THE TECHNOLOGICAL PROCESS OF THE ROCK DESTRUCTION BY A VIBRO IMPACT DEVICE WITH A HYDRO PULSE DRIVE

2018 ◽  
Vol 3 (56) ◽  
pp. 5-18
Author(s):  
Y. Ivanchuk ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 21-28
Author(s):  
SALI RADZHAPOV ◽  
◽  
RUSTAM RAKHIMOV ◽  
BEGJAN RADZHAPOV ◽  
MARS ZUFAROV

The article describes the developed radiometer for Express measurement of alpha radiation of radioactive elements based on a large-diameter silicon detector. The main element of the PPD detector is made using computer mathematical modeling of all stages of the technological process of manufacturing detectors, taking into account at each stage the degree of influence of the properties of the initial silicon on the electrophysical and radiometric characteristics of the detector. Detectors are manufactured for certain types of devices. The developed radiometer is designed to measure alpha radiation of natural isotopes (238U, 234U, 232Th, 226Ra, 222Rn, 218Po, 214Bi, etc.) in various environments. It also shows the principle of operation of the device, provides a block diagram of the measuring complex, describes the electronic components of the radiometer, as well as the block diagram. Signal transformations (spectrum transfer, filtering, accumulation) are implemented programmatically on the basis of a digital processing module. The device can detect the presence of specific elements in various environments, as well as protect people from the harmful effects of adverse radiation and can be used both in the field and stationary.


2015 ◽  
Vol 756 ◽  
pp. 394-401 ◽  
Author(s):  
Oyuna O. Angatkina ◽  
Petr Y. Krauinsch ◽  
Valentina N. Deryusheva

Impact devices are used in various areas of mechanical engineering and deal with a variety of materials. At the moment, it is determined that an increase in the duration of the impact impulse ensures the constant contact of a headgear (tool) with the work environment. This increases the efficiency of impact devices. We have proposed a shaper that allows to control the shape and duration of the impact impulse. In this paper, results of mathematical modeling of the pneumohydraulic impact device with elastic and viscoelastic shaper is considered. Several designs of impact devices are presented. Parameters which affect the impact impulse are determined. These results can be used in constructing pneumohydraulic impact devices for a specific area of implication.


Author(s):  
B Tarabayev ◽  
K Baigenzhinov

This article discusses the possibility of mathematical modeling andoptimization of parameters of the process of buckwheat. As a result of the research,a regression equation was obtained, which allows to predict the optimal extrusionparameters of buckwheat and reduce the number of experiments. Extrusionprocessing is one of the most attractive methods of processing grain crops to obtainsemi-finished products. The efficiency and effectiveness of the use of this equationis proved in laboratory conditions. The influence of all factors was studied duringthe extrusion of buckwheat grain, pressure, temperature, processing time andhumidity of the feedstock on the yield of blasted cereal, the content of watersoluble substances, the swelling and density of the extruded raw material. Amathematical model of the process of extrusion of buckwheat grain made itpossible to find rational process parameters allowing to obtain extrudates with highconsumer properties.


2020 ◽  
pp. 56-61
Author(s):  
A.M. Gafarov ◽  
H.V. Gafarzade

The possibilities of a new technological process — elastic rolling are considered. Modeling and optimization of the process were performed to ensure the minimum surface roughness of the treated surface. Keywords elastic rolling, surface roughness, parameter, modeling, optimization, part. [email protected]


Author(s):  
Smagulov E. Zh. ◽  
Mendigaliyeva G. Kh. ◽  
Smagulov B. E.

The article discusses the main directions of the development of the educational environment and the role of mathematical modeling of production problems in a specialized school. The key issue of the modernization of education is described - this is improving its quality, bringing it in line with international standards. The emphasis is not on the knowledge gained, but rather on the process of applying this knowledge. The definition of the concept of pedagogical technology is given - this is information technology, since the basis of the technological process of training is the receipt and transformation of information.


Author(s):  
Yaroslav Ivanchuk

The high efficiency of the technological process of surface soil compaction using vibration and vibro-impact treatment hasbeen determined. High degree intensification of the soil compaction process is achieved by using original inertial vibratoryrammers with a hydro-pulse drive. A new mathematical model has been developed for the surface soil compaction processesstudy by the inertial vibratory rammers. Using numerical modeling, work dependencies are obtained to determine the mainoperating characteristics for the technological process of surface soil compaction by inertial vibratory rammers based on ahydro-impulse drive.


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