scholarly journals Development of effective construction and justification of parameters of the cleaner of fibrous material

2021 ◽  
Vol 304 ◽  
pp. 03031
Author(s):  
Anvar Djuraev ◽  
Ruzimurad Rosulov ◽  
Javlon Kholmirzaev ◽  
Husan Diyorov ◽  
Umid Berdimurodov
Keyword(s):  
Mathematical Models ◽  
Numerical Solution ◽  
Fibrous Material ◽  
General Scheme ◽  
Laws Of Motion ◽  
Working Bodies

This article provides a general scheme of the principle of operation of a fibrous material cleaner from coarse and fine litter. Based on the compilation of dynamic and mathematical models, its numerical solution, the regularities of the movement of the working bodies of the purifier are presented. Analyzes of the laws of motion and graphic dependencies substantiated the main parameters of the purifier. Recommendations are given for widespread use in fiber-cleaning production.

scholarly journals Physical and mathematical modeling of cleaning fibrous material from coarse-grained litter

2021 ◽  
Vol 2131 (3) ◽  
pp. 032055
Author(s):  
D Tashpulatov ◽  
A Plehanov ◽  
I Madumarov ◽  
S Tashpulatov ◽  
I Cherunova
Keyword(s):  
Mathematical Modeling ◽  
Fibrous Material ◽  
Coarse Grained ◽  
Theoretical Studies ◽  
Modes Of Operation ◽  
Large Litter ◽  
Cleaning Machine ◽  
Physical And Mathematical Modeling ◽  
Laws Of Motion ◽  
Working Bodies

Abstract The article provides a recommended scheme and principle of operation of the cleaner of fibrous material from large litter. The results of theoretical studies to determine the laws of motion and the recommended parameters of the working bodies of the cleaning machine are presented. The results of comparative production tests of a fibrous material cleaner from large litter are given. Substantiated the receipt of parameters and modes of operation of the working bodies of the cleaner of fibrous material, in particular cotton.

Mathematical models of optimal management of material support of educational and scientific activities of industrial universities

2020 ◽  
pp. 79-90
Author(s):  
N. V. Kalganova ◽  
Keyword(s):  
Higher Education ◽  
Mathematical Models ◽  
Numerical Solution ◽  
Mathematical Description ◽  
Financial Support ◽  
Software Package ◽  
Optimal Management ◽  
Material Support ◽  
Support Strategy ◽  
The University

The paper considers mathematical differential models for managing the achievement of planned values of material support for educational and scientific activities of the university based on the analysis of this area of activity of transport universities. Models contain a mathematical description of the material and financial processes under study, which analytically show their dynamics for a certain period. The models are quite simple and can be used for planning and forecasting the financial support strategy of higher education institutions. In her research, the author relied on the work of Russian scientists, in particular, on [1-5]. This paper presents a mathematical description of the set of possible options for the system, predicting the consequences of the implemented options, and justifying the rational choice of management to achieve optimal educational and material support of the university. In this paper, we used methods for solving and investigating differential equations, as well as the MathCAD 15 software package for their numerical solution [6-8].

Numerical solution of three mathematical models of gas adsorption in coal particle based on finite difference method

Fuel ◽  
2022 ◽  
Vol 308 ◽  
pp. 122036
Author(s):  
Yueping Qin ◽  
Zhengduo Zhao ◽  
Hao Xu ◽  
Wei Liu ◽  
Fan Wu ◽  
...  
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Mathematical Models ◽  
Numerical Solution ◽  
Difference Method ◽  
Coal Particle ◽  
Gas Adsorption

scholarly journals INVESTIGATION OF THE PROCESS OF INTERACTION BETWEEN ROOT AND AUGER SCREW

2020 ◽  
Vol 1 (37) ◽  
pp. 38
Author(s):  
S. Marinenko ◽  
O. Korol ◽  
O. Hurik
Keyword(s):  
Mathematical Models ◽  
Root Crop ◽  
Technological Processes ◽  
Technological Efficiency ◽  
Urgent Task ◽  
Working Bodies ◽  
Angle Of Reflection

Increasing the technological efficiency of root harvesting machines by developing and substantiating new technological processes for the operation of root crop heap cleaning systems is an urgent task. The purpose of the study is to develop theoretical mathematical models of the functioning of the working bodies of treatment systems. Mathematical models of the resulting velocity and the angle of reflection of the root crop from the surface of the auger screw, which is mounted above the working branch of the feed conveyor, were obtained.

scholarly journals Assessment of the Need to Create Control Sytem of Unmanned Dump Truck

2020 ◽  
Vol 177 ◽  
pp. 03022
Author(s):  
Dmitry Dubinkin ◽  
Vladimir Sadovets ◽  
Ilya Syrkin ◽  
Ivan Chicherin
Keyword(s):  
Control System ◽  
Mathematical Models ◽  
General Structure ◽  
General Scheme ◽  
Dump Truck ◽  
Level Control ◽  
Dump Trucks ◽  
Levels Of Automation ◽  
Multi Level ◽  
Mining Dump Truck

The paper substantiates the need to create an autonomous dump truck control system. The scope of the unmanned mining dump truck is described. An example of the layout of the general scheme of an autonomous dump truck with control system basic elements is given, as well as some differences from the dump trucks with traditional control system are presented. The levels of automation of autonomous dump truck are formed. The enlarged tasks that need to be addressed when creating a control system for autonomous mining dump truck are highlighted. The general structure of a multi-level control system for autonomous dump truck was developed. The upper, middle and lower levels of the control system are described. The summation is drawn on the relevance of developing scientifically based approaches for creating control systems for autonomous mining truck, as well as developing mathematical models and algorithms for controlling autonomous mining trucks. The main directions for further research are identified. They are the development of requirements for a dump truck control system; the development of the structure of mathematical models and algorithms for the operation of subsystems of the dump truck control; the development of software that allows simulating the interaction of the subsystems of the dump truck control system with each other, the Smart Quarry system and the operator.

Simulation of Technological Systems for Diagnosis and Management Machining with CNC

2015 ◽  
Vol 770 ◽  
pp. 617-621 ◽  
Author(s):  
R.Yu. Nekrasov ◽  
I.V. Soloviev ◽  
A.I. Starikov
Keyword(s):  
Mathematical Models ◽  
General Scheme ◽  
Technological Systems ◽  
Cnc Machines ◽  
Diagnosis And Management ◽  
Technological Processes ◽  
The Creation ◽  
Diagnostics System

The article deals with the problem of increasing the precision of products engineering on CNC machines. The authors proposed a solution to this problem by providing input operational adjustments to control the trajectory of the Executive bodies of the machine. The necessity of the creation of mathematical models of technological processes of diagnostics system "machine-fixture-tool-workpiece" was justified. Based on the study, the authors proposed a general scheme of diagnostics and surgical input, corrections and approximate mathematical models of individual processes of diagnostics.

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