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Поверхность сороудалительной сетки при а = 270° была разделена на 6 ячеек для выпадающего мелкого сора, а для препятствия их переходу из одной ячейки в другую, сделаны герметические перегородки между ними. Верхняя часть сетки (т.е. I и II зоны) имеет кожух из листовой стали, который плотно прилегает к перегородкам. Лабораторные анализы по определению эффективности каждой ячейки производились после каждой повторности опытов.
Опыты проводились на хлопке-сырце машинного сбора «Ташкент- I» с нормальной влажностью при зазоре между колково-планчатым барабаном и сеткой в 14-16 мм, окружной скоростью 9 м/с и производительности машины 5 т/ч [3].
В табл. 1 и на рис.1 представлены результаты определения очистительного эффекта по зонам сетчатой поверхности, из которых видно, что по отношению к общему выделению сора по всей сетке в 270°, в верхней части (I и II зона) выделение сорных примесей составляет около 40%, таким образом, именно в них главный участок удаления сора.
Таблица 1. Очистительный эффект по зонам сетчатой поверхности (производительность 5 т/ч)
Зона Угол обхвата барабана сеткой, градусов Количество выделенного сора, г Очистительный эффект, %
I. 45 49,38 20,17
II. 45 46,24 18,89
III. 45 44,38 18,13
IV. 45 40,53 16,55
V. 45 35,06 14,32
VI. 45 29,23 11,94
Всего 270 244,82 100
Выводы:
1. Выявлена закономерность процесса сороудаления на колково-барабанных очистителях по зонам сетчатой поверхности.
2. Применение удлиненной сетки позволяет получить эффективную очистку, при меньшем числе колковых барабанов, чем на очистителе ОХБ-10М серийного производства.
Список литературы / References
1. Усманов Д.А., Исмаилов С., Рахимов Э.Г. Основные факторы, влияющие на относительное движение летучки хлопка-сырца по поверхности колка барабана. Ташкент, 1979. 27с.
2. Усманов Д.А. Очистка хлопка-сырца от мелких сорных примесей. Хлопковая промышленность, 1977. № 4. С. 14-15.
3. Усманов Д.А., Исмаилов С., Рахимов Э.Г. Основные факторы, влияющие на относительное движение летучки хлопка-сырца по поверхности колка барабана. Хлопковая промышленность, 1979. № 1. С. 8-10.
DEVELOPMENT OF ARCHITECTURE OF THE TOOL OF AUTOMATED MODELING OF THE IMITATION MODEL OF A FLEXIBLE MANUFACTURING SYSTEM Khalilov E.O. Email: [email protected]
Khalilov Elnur Oktay oglu - Doctoral Student, Senior Teacher, MINGECHEVIR STATE UNIVERSITY REPUBLIC OF AZERBAIJAN, MINGACHEVIR, REPUBLIC OF AZERBAIJAN
Abstract: the research questions of a flexible production system at the stage of ssystems engineering design by simulation modeling and presentation of simulation results by animation methods as a result of computer experiments are considered. The architecture of a computer-aided design tool that operates in RobotStudio environments and a software package in CAD format has been developed. A scheme of FPS using modern advances in the field of robotics, modeling and new information technologies is proposed. The choice of this software package is due to the following basic properties: the package contains a rich library of tools (robots, manipulators, parts, tools, workspaces, etc.), which are periodically improved and accumulated in the library; the possibility of using library elements in specific projects, also when designing simple non-standard mechatronic devices; the ability to add to the library and use in specific projects programs created in other packages that
operate in CAD format; provides a study of the simulation model of FPS using computer experiments and the presentation of simulation results by animation methods in two and three-dimensional space. Keywords: imitation, animation, model of flexible production system, RobotStudio, computer-aided design tool.
РАЗРАБОТКА АРХИТЕКТУРЫ ИНСТРУМЕНТА АВТОМАТИЗИРОВАННОГО МОДЕЛИРОВАНИЯ ИМИТАЦИОННОЙ МОДЕЛИ ГИБКОЙ ПРОИЗВОДСТВЕННОЙ СИСТЕМЫ
Халилов Э.О.
Халилов Эльнур Октай оглы — докторант, старший преподаватель, кафедра информационных технологий, Мингечевирский государственный университет Азербайджанской Республики, г. Мингечевир, Азербайджанская Республика
Аннотация: рассмотрены вопросы исследования гибкой производственной системы на этапе проектирования системного моделирования путем имитационного моделирования и представления результатов моделирования методами анимации в результате компьютерных экспериментов. Была разработана архитектура средства автоматизированного проектирования, работающего в средах RobotStudio, и программного пакета в формате CAD. Предложена схема FPS с использованием современных достижений в области робототехники, моделирования и новых информационных технологий. Выбор этого программного пакета обусловлен следующими основными свойствами: пакет содержит богатую библиотеку инструментов (роботов, манипуляторов, деталей, инструментов, рабочих пространств и т.д.), которые периодически улучшаются и накапливаются в библиотеке; возможность использования элементов библиотеки в конкретных проектах, в том числе при проектировании простых нестандартных мехатронных устройств; возможность добавления в библиотеку и использования в конкретных проектах программ, созданных в других пакетах, работающих в формате CAD; обеспечивает исследование имитационной модели FPS с использованием компьютерных экспериментов и представление результатов имитационного моделирования методами анимации в двух и трехмерном пространстве.
Ключевые слова: имитация, анимация, модель гибкой производственной системы, RobotStudio, средство автоматизированного проектирования.
УДК 621.865.8
Introduction. Designing flexible production systems (FPS), like any technical system, is characterized by multi-iteration processes. In addition, in order to reduce the design time it is necessary to use automation equipment and information technology in all design procedures.
As known, the main elements of the FPS are mechatronic devices (industrial robots, automatic manipulators, lifting positioning manipulators, various transport systems, software-controlled machining centers, main and auxiliary equipment, etc.), which operate in two and three-dimensional space [1]. Consequently, the testing of physical models and the stages of their introduction into real objects are accompanied by certain difficulties. We also note that the design of FPS is performed by specialists of various professions (designers, technologists, designers, specialists in automation and information technologies, etc.), and in most cases the ideas they offer at the initial stage are not justified in the next design stages. This is due to the fact that technical and other errors of designers are replicated at subsequent stages and are detected only at the final stage, in particular during testing and implementation. As a result, the project implementation deadlines are increasing and additional redesign resources are required. In this regard, to minimize the errors made in the design of FPS, and assessing the feasibility of its creation at the system engineering design stage using the methods of mathematical modeling and the use of simulation methods, is an important task.
The report on the example of the site of creating a package of two cards and its cold welding on a rolling mill consistently addresses the following questions: development of a conceptual model of the site; development of the structural-kinematic scheme of FPS; development of an automated modeling tool architecture.
Conceptual model of the site. At the production site of creating a package of two cards, cards with drawings (applied with a special lubricating fluid) from the previous section, two pieces in one row, on a conveyor through a drying oven, go to the position of creating a package. Another conveyor of a card without a drawing, one by one, successively goes to the position of creating a package, where
a package of two cards is created (on one card, the drawing of which is located below, the other is superimposed without drawing), which is installed into the rolls of the rolling mill and then cold welding is performed. After cold welding, the semi-finished product goes to the next section for further processing. To perform the above works, four workers work on the existing site. They perform uniform, monotonously repetitive operations in conditions harmful to the human body (high temperature at the drying furnace, rolls of the rolling mill, smeared with a special liquid, emit harmful substances at high temperature during rolling, etc.). According to the technology, to prevent the marriage of the final product, the surface of the cards (with or without drawings) should not be touched. Workers are required to strictly adhere to the rules of technology, the non-observance of which leads to industrial injuries. Depending on the requirements of the final product, the size of the cards may increase or decrease within acceptable limits (frame sizes).
In the study of any complex dynamic system, including FPS, the following work must be performed: the formation of a conceptual model of the object; development of the structural-kinematic scheme of the object; the choice of a software package that provides for the creation of a simulation model of an object in two and three-dimensional space for performing computer experiments at the stage of systems engineering design; development of the architecture of an automated modeling tool (AAM), operating in the environment of the selected software package; the creation in the library of tools of project elements taking into account the requirements of the structural-kinematic scheme of the object; splitting the structural-kinematic scheme into separate modules, each of which performs functionally-completed work in standalone mode; the creation of the layout of each FPM (flexible production module); testing the operation of each module in an automated mode; Testing the simulation model of the project in automatic mode.
The report on the example of a specific object of FPS creating a package of two cards and their cold welding on a rolling mill (in the following text of the FPS report) addresses the development of an TAM FMS architecture.
Development of the structural-kinematic scheme of FPS. Taking into account the conceptual model and requirements for the design of FPS, the structural-kinematic scheme of FPS can be represented as shown in Figure 1. The proposed FPS scheme using modern advances in robotics, modeling and new information technologies should function as follows: drawings on the surface, two jokes in each row, with the help of the stepper manipulator (SМ1), through the drying oven, come to the position of the lifting-positioning manipulator (LPМ1); - in parallel, with the help of another step paddle (LP^), a card without a pattern goes to the position LPW2; - positioning of cards and their preparation for grasping by manipulators (two-handed and one-armed) are carried out at each LPM; -cards with drawings with a two-armed manipulator (TAM) and without a drawing with a one-armed manipulator (OAM) are transported to the following positions: respectively, to the table of a four-tiered manipulator and on the table of the LPM3; - a four-tier stepper manipulator (FTSM) a card with pictures in successive steps transports to the position of the LPM and a package of two cards is created; - after positioning the package on the LPM, an industrial robot (IR) transports the package to the roll position of the rolling mill.
Similarly, the process continues in a parallel-sequential mode of operation of mechatronic devices in interaction in common work areas. Depending on the requirements of semi-finished product sizes, mechatronic devices should be automatically or automatically rebuilt to release a new semi-finished standard size.
Fig. 1. The structural-kinematic scheme of the FPS of creating a package of two cards and their cold rolling mill
Structurally kinematic structure of FPS will be divided into four FPM. Each of them, in order to achieve the ultimate goal of FPS, in the real time interval autonomously performs functionally completed work: - FPM1 (drying oven, SМ1 and LPМ1) in successive steps transports cards with drawings from the previous section to the position of the table LPМ11 and prepares them for transportation to the next position; - FPM2 (OAM, four-tier FTWS) transports two cards with drawings to the initial positions of the four-tier stepper manipulator (cell) and the latter moves the cards to the table for creating the LPM3 package; - LPM3 (S^, LPМ2, ОAМ) transports cards without a pattern to the table LPМ2, where it prepares them and with the help of ОAМ moves them to the table LPМ3; FPM4 (LPM3, IR) creates a package of two cards received from FPM2 (with a picture) and FPM3 (without a picture), prepares a package for setting IR and the latter moves the package to the roll positions of the rolling mill.
It is assumed that the synchronization of parallel-sequential operation of all FPMs and their mechatronic devices, as well as the coordinated management of the FPA as a whole, should be carried out by the management system with the developed software.
Analysis of the structural-kinematic scheme of the FPS showed that the specific features of the designed object, in addition to the requirements specified in the conceptual model, impose some additional requirements on the design of the FPS. In particular, along with the requirements for the use of mass-produced mechatronic devices, main and auxiliary equipment, it is also necessary to design relatively simple and economically sound specialized manipulators, etc. Therefore, when choosing a software system for testing and evaluating the feasibility of creating FPS computer experiments should take into account these additional requirements.
The ABB RobotStudio software package [2] was chosen as a software package for creating and testing a structural-kinematic scheme of a simulation model of FPS using computer experiments at the stage of systems engineering design.
The choice of this software package is due to the following basic properties: the package contains a rich library of tools (robots, manipulators, parts, tools, workspaces, etc.), which are periodically improved and accumulated in the library; the possibility of using library elements in specific projects, also when designing simple non-standard mechatronic devices; the ability to add to the library and use
in specific projects programs created in other packages that operate in CAD format; provides a study of the simulation model of FPS using computer experiments and the presentation of simulation results by animation methods in two and three-dimensional space.
Development of an automated modeling tool operating in the RobotStudio environment for studying the FPS simulation model.
The analysis showed that the following tools provided in the structural-kinematic scheme are available in the RobotStudio library: stepper manipulators, card details and an industrial robot. Consequently, having made some changes in these elements, they can be used in FPM 1, 2, 3 and 4. In the RobotStudio library, there are no lift-positioning manipulators (LPM 1, 2, 3), two-armed and one-armed suspension specialized manipulators and their gripping devices. To create them requires the use of an automated modeling tool.
The proposed architecture of AAM FPS is shown in Figure 2.
As can be seen, AAM operates in two autonomous modes: designing non-standard FPM elements that are absent in the structural-kinematic scheme of the FPS (the results of designing in the environment of a software package in CAD format are transferred to the library of project elements in the environment of the current library); creating mock-ups of flexible production modules separately, conducting computer experiments on the operation of FPM using simulation methods, presenting simulation results by animation methods, synthesizing FPM 1-4 in the form of FPS, and a comprehensive study in two and three-dimensional space.
Fig. 2. Architecture of the automated modeling tool FPS
The proposed TAM, which functions in RobotStudio environments, and the software package in CAD format is implemented for a specific FPS to create a package of two cards and cold weld them on
a rolling mill, and TAM is also supposed to be used at subsequent stages of studying the simulation model of FPS using computer experiments.
References / Список литературы
1. Akhmedov M.A., Akhmedova S.M. Development of the architecture of a computer-aided design tool for a simulation model of a flexible production module. Control Systems and Information Technology. № 4.1 (62), 2015. Р. 104-107.
2. [Electronic Resource]. URL: https://library.abb.com/ (date of access: 11.10.2019).
ИССЛЕДОВАНИЕ ВЛИЯНИЯ ФУНКЦИОНАЛЬНЫХ ДОБАВОК НА ПРОЧНОСТЬ ГИПСОВОГО КАМНЯ, ДИСПЕРСНО-АРМИРОВАННОГО СИНТЕТИЧЕСКИМ ВОЛОКНОМ Халипаева С.И.1, Мамаджанов И.Б.2, Урозова Д.Д.3 Em ail: [email protected]
'Халипаева Севара Искандар кизи — младший научный сотрудник, Ферганский политехнический институт; 2Мамаджанов Искандер Бахтиёрович — студент; 3Урозова Дурдона Давронжон кизи — студент, химико-технологический факультет, Ферганский политехнический институт, г. Фергана, Республика Узбекистан
Аннотация: в данной статье рассматривается вопрос загрязнения окружающей среды, показываются статистические данные образующихся твердых бытовых отходов. Также в статье предлагается метод получения строительного материала на основе гипса с использованием бытового отхода — пластиковых бутылок. Приводятся данные физико-механических испытаний материалов на основе гипсового вяжущего, модификаторов и синтетических волокон. Приводятся данные влияния количества волокон и добавок на прочность вяжущего материала в зависимости от времени. Ключевые слова: гипс, волокно, гипсоволоконная композиция.
STUDY OF THE INFLUENCE OF FUNCTIONAL ADDITIVES ON THE STRENGTH OF A GYPSUM STONE OF A DISPERSION-REINFORCED SYNTHETIC FIBER Khalipaeva S.I.1, Mamadzhanov I.B.2, Urozova D.D.3
'Khalipaeva Sevara Iskandar Kizi - Junior Researcher, FERGHANA POLYTECHNIC INSTITUTE; Mamadzhanov Iskander Bahtiyorovich — Student; 3Urozova Durdona Davronzhon Kizi - Student, FACULTY OF CHEMICAL TECHNOLOGY, FERGHANA POLYTECHNIC INSTITUTE, FERGHANA, REPUBLIC OF UZBEKISTAN
Abstract: this article discusses the issue of environmental pollution, shows the statistical data of the generated solid waste. The article also proposes a method for producing gypsum-based building material using household waste - plastic bottles. The data of physical and mechanical tests of materials based on gypsum binder, modifiers and synthetic fibers are presented. The data on the effect of the amount of fibers and additives on the strength of the binder material depending on time are presented. Keywords: gypsum, fiber, gypsum fiber composition.
УДК 69'.'82 DOI: '0.244''/2304-2338-20'9-''00'
Стремительное развитие экономики в Узбекистане на сегодняшний день подразумевает рациональное использование всех видов ресурсов, снижение их потерь и внедрение безотходных
