Journal of Engineering Sciences / Журнал інженерних наук
Permanent URI for this collectionhttps://devessuir.sumdu.edu.ua/handle/123456789/34326
Browse
7 results
Search Results
Item Design and manufacturing of polymer composite materials using quality management methods(Sumy State University, 2023) Берладір, Христина Володимирівна; Берладир, Кристина Владимировна; Berladir, Khrystyna Volodymyrivna; Mitalova, Z.; Павленко, Іван Володимирович; Павленко, Иван Владимирович; Pavlenko, Ivan Volodymyrovych; Trojanowska, J.; Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Руденко, Павло Володимирович; Руденко, Павел Владимирович; Rudenko, Pavlo VolodymyrovychMany factors influence the design and manufacturing of products from polymer composite materials. The expert assessment method was applied in the article for the corresponding analysis. A cause-and-effect diagram was built as a result of a preliminary analysis of the influence of factors on the primary indicator of product quality indicators (e.g., wear resistance). Based on the expert assessment results and quality function deployment analysis, the most critical factors affecting wear resistance were obtained: polymer brand, filler shape and size, technological parameters of mixing, pressing, sintering, and mechanical processing. Their impact was studied to establish quantitative dependencies. A stable value of the wear resistance of the product in the manufacturing process can be ensured by timely adjustment of the mixing, pressing, and sintering modes. As a result of the structural analysis of the process of developing materials with predetermined properties at the enterprise according to the IDEF0 methodology, the importance of assessing the risks associated with the process of multi-criteria optimization of their main quality indicators was confirmed.Item Movement monitoring system for a pneumatic muscle actuator(Sumy State University, 2023) Соколов, Олександр Сергійович; Соколов, Александр Сергеевич; Sokolov, Oleksandr Serhiiovych; Hosovsky, A.; Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Павленко, Іван Володимирович; Павленко, Иван Владимирович; Pavlenko, Ivan VolodymyrovychRecent advancements in soft pneumatic robot research have demonstrated these robots’ capability to interact with the environment and humans in various ways. Their ability to move over rough terrain and grasp objects of irregular shape, regardless of position, has garnered significant interest in developing new pneumatic soft robots. Integrating industrial design with related technologies holds great promise for the future, potentially bringing about a new lifestyle and revolutionizing the industry. As robots become increasingly practical, there is a growing need for sensitivity, robustness, and efficiency improvements. It is anticipated that the development of these intelligent pneumatic soft robots will play a critical role in serving the needs of society and production shortly. The present article is concerned with developing a system for monitoring a pneumatic robot’s parameters, including a spatial coordinate system. The focus is on utilizing the relationship between the coordinates and pressure to model the movement of the soft robot within the MATLAB simulation environment.Item The efficiency of collaborative assembling cells(Sumy State University, 2022) Андрусишин, Владислав Костянтинович; Андрусишин, Владислав Костантинович; Andrusyshyn, Vladyslav Kostiantynovych; Luscinski, S.; Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Павленко, Іван Володимирович; Павленко, Иван Владимирович; Pavlenko, Ivan VolodymyrovychTo produce competitive products, it is necessary to consider their permanent modernization and adaptation to the emerging needs of a consumer. This feature of up-to-date production inevitably leads to design complexities. As a result, the complexity of a technological assembly process increases, which is a new challenge for enterprises. Simultaneously, in most cases, assembly operations are performed manually due to the complexity or impossibility of automating the assembling process for an extensive range of products. This fact is due to the insufficient flexibility of automation systems. Remarkably, this approach has significant drawbacks, i.e., low productivity and risk of chronic diseases. To solve this problem, the use of collaborative systems was proposed. Such systems have the advantages of both humans and automation tools. As a result, industrial robots can be applied as automation tools. However, when using industrial robots next to workers, the safety requirements are significantly increased since the infliction of industrial injuries is unacceptable. After considering all the above, the article deals with a new scientific and methodological approach to designing security systems of collaborative production cells and their design and effectiveness verification.Item Digital model and assembling of a lathe(Sumy State University, 2022) Besedin, M.; Popowska, M.; Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Trojanowska, J.The article aims at developing a digital model of a lathe and the related technology for its assembling. The study is based on analyzing the service purpose and technological capabilities of modern modular machine tools, justification and development of the machine tool design according to the specified production conditions, and development of a technological process for assembling the proposed modular machine tool. The geometric modeling techniques and the design documentation were implemented to justify the rational choice of design parameters of the machine tool design and its spatial model. The proposed approach also considers structural elements and the relationships between them. As a result, a conceptual approach was proposed to design technological processes of lathe assembly with a wide range of technological capabilities. It allows implementation of the up-to-date strategy from idea to finished product at industrial enterprises. The practical significance of the obtained results for the machine-building industry is in the proposed practical recommendations for developing the technological process for assembling lathes.Item Комплексний аналіз механічної системи «верстатний пристрій – заготовка»(Сумський державний університет, 2017) Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Павленко, Іван Володимирович; Павленко, Иван Владимирович; Pavlenko, Ivan VolodymyrovychЦя стаття присвячена аналізу процесу базування та закріплення корпусних деталей у верстатних пристроях при оброблення на свердлильно-фрезерно-розточувальних верстатах. Характерною особливістю схем базування деталей цього типу є те, що одна з плоских поверхонь використовується як установлювальна база, забезпечуючи стійкість рівноважного положення, зручність базування та усунення вібрацій під час оброблення. У статті розроблено комплексну математичну модель системи «верстатний пристрій – заготовка» з огляду на технологічні особливості процесу базування та закріплення заготовки у верстатному пристрої. Запропоновано методику визначення жорсткості різального інструмента та функціональних елементів верстатних пристроїв. У результаті визначається статичний та динамічний аналіз заготовки у верстатних пристроях під дією просторової системи сил різання та закріплення. Також визначаються власні частоти системи «верстатний пристрій – заготовка» та форми вільних і змушених коливань, амплітудно-частотні характеристики.Item Measuring of roundness after turning of composite material with natural fibers(Sumy State University, 2016) Mital, D.; Zajac, J.; Botko, F.; Hatala, M.; Mitalova, Z.; Radchenko, S.; Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii OleksandrovychThe article is based on practical requirements from the reason of unequally removed material during the turning of the wood plastic composite (WPC). This results in geometrical deviations of the WPC bar diameter. WPC represents a relatively new group of materials that has been at the market for almost 30 years. In 1983 Lear Corporation in Wisconsine, USA made for the first time the interior panels of cars from composite materials – PP matrix with organic filler – 50 % wood flour. WPCs displace traditional materials such as wood, steel and cement materials in the marina industry. Designers are not limited technology of production from construction aspect, because different shapes and profiles can be produced by injection (resp. process of extrusion), but in the process of machining were monitored problems with tolerances. Mixed colors can be achieved by using of different pigments and one feels that this is real wood. Technologists begin to use convention technologies – drilling, milling and turning, as tendency of application of WPC increased. Knowledges about machining of WPC are not elaborate as deep as machining of metals or plastics. And this is a reason for orientation in this direction too. Commercial wood plastic composite MEGAWOOD (70 % wood flour, 30 % HDPE) was a sample material in current investigation of roundness after turning of WPC. HSS EN ISO HS6-5-2 cutting tool was used. The geometry of the cutting tool was γ0 = 20°, α0 = 8°, κr = 45°, rε = 0,5 mm, εr = 90°. Cutting conditions during turning were as follows: cutting speed n = 900 m/min (constant), feed f = 0,1 to 0,61 mm), depth of cut ap = 0,5 mm for turning of final diameter d = 36 mm. It was dry turning. Roundness/ cylindricity measuring system RA – 120 was used for measuring of roundness deviation. It was found that the roundness deviation increases with feed increasing. Popped heat was not used during the turning to final diameter – 36 mm. Using of popped heat results in decreasing of roundness deviation. Waviness was not possible to measure within the range of ±1 000 μm on the sample No. 4 (f = 0,41 mm) and sample No. 5 (f = 0,6 mm). Tip of the measuring systems could not filtrate parameter of roughness (surface after turning – low value of tool nose radius rε = 0,5 mm and high feed caused distinctive toolmark). Inaccuracy of macrogeometry (including roundness) could have caused state of machine, tool and fixture too.Item Аналіз динамічного стану системи «верстатний пристрій – заготовка»(Сумський державний університет, 2016) Іванов, Віталій Олександрович; Иванов, Виталий Александрович; Ivanov, Vitalii Oleksandrovych; Карпусь, В.Є.; Дегтярьов, Іван Михайлович; Дегтярев, Иван Михайлович; Dehtiarov, Ivan Mykhailovych; Павленко, Іван Володимирович; Павленко, Иван Владимирович; Pavlenko, Ivan Volodymyrovych; Йімінг, Кевін РонгУ статті методами чисельного моделювання досліджено коливання системи «верстатний пристрій – заготовка», що виникають у процесі різання на різних переходах при обробці важелів у верстатних пристроях різних систем. У процесі моделювання досліджувалися заготовки з різних матеріалів. Результати гармонічного аналізу показали, що динамічна жорсткість верстатного пристрою з елементів системи універсально-збірних переналагоджуваних пристроїв вища, ніж у спеціальному верстатному пристрої та верстатному пристрої, складеному з елементів універсально-збірних пристроїв. Амплітуда коливань у місцях оброблюваних поверхонь у верстатному пристрої, складеному з елементів системи універсально-збірних переналагоджуваних пристроїв, не перевищує допуски на виготовлення важеля.