Browsing by Author "Zdobytskyi, Andriy"

Now showing 1 - 7 of 7

Access status: Open Access ,
Analysis of compressor units – operational issues
(Wydawnictwa AGH, 2023) Kurdziel, Franciszek; Pytel, Krzysztof; Kalwar, Adam; Grzywnowicz, Grzegorz; Zdobytskyi, Andriy
The characteristics of compressor chiller operation for the generation of cooling for the central systems of mine air-conditioning installations are presented. The modes of operation of the units and their use in the final stage of chilled-water cooling are described. The construction of the screw compressor and the compression methods are discussed. The actual use of compressors in the third stage of chilled water generation is analyzed. The free-cooling installation as a solution for supporting chilled-water generation is presented.
Access status: Open Access ,
CAD in machinery design : implementation and educational issues : XXIX International Polish-Ukrainian Conference
(Wydawnictwa AGH, 2023) Banaś, Marian; Pytel, Krzysztof; Lobur, Mykhaylo; Zdobytskyi, Andriy
The CADMD conference series started in Warsaw in 1994 and has been organized annually since then in Poland and Ukraine. The XXIX CADMD 2021 conference took place in Krakow. A short history of the conference can be found on its website: http://cadmd.lpnu.ua/. The aim of the conference is to exchange experiences between scientists of Ukraine and Poland and their young and promising colleagues in modern information technology, the development of CAD in mechanics, teaching methods and the implementation of automated systems in the educational process, and establishing closer ties between researchers. The main topics of discussion are as follows: automated design systems; robotics, mechatronics, and automation; process management, identification, modeling, and modeling of processes and systems; energy systems and environmental protection facilities – microelectromechanical systems; 3D scanning, printing, and augmented and virtual reality; engineering education.
Access status: Open Access ,
Engineering drawing education using CAD tools
(Wydawnictwa AGH, 2023) Łukaszewicz, Andrzej; Skorulski, Grzegorz; Melnyk, Mykhaylo; Kernytskyy, Andriy; Zdobytskyi, Andriy; Kolesnyk, Kostyantyn
This paper presents selected aspects of engineering drawing education that are used in the Faculty of Mechanical Engineering, Bialystok University of Technology (BUT), and the Department of Computer-Aided Systems, Lviv Polytechnic National University (LPNU). Nowadays, this concept is inextricably linked with CAD and CAx techniques. Some issues of engineering drawing with 2D CAD education are outlined based on the authors’ many years of experience in the teaching of mechanical engineering drawing, MCAD, ECAD, and MEMS.
Access status: Open Access ,
Probabilistic modeling of mechanical cantilever oscillator fluctuation
(Wydawnictwa AGH, 2023) Kosobutskyy, Petro; Zdobytskyi, Andriy; Marikutsa, Uliana; Melnyk, Mykhaylo; Iwaniec, Marek
The dynamics of oscillations of cantilever-type oscillators have been studied in this work. The probabilistic model of a cantilever is explained. Dependencies for the probability density, mean mathematical expectation, and standard deviation were developed. A fluctuation model of a cantilever was constructed, and the dependencies for the probability density for a direct problem were developed. The modeling of the mathematical expectation and phase variance for the inverse problem was performed.
Access status: Open Access ,
Problemy ochrony i inżynierii środowiska
(Wydawnictwa AGH, 2023) Bergier, Tomasz; Cichowicz, Robert; Dobrzański, Maciej; Jakubiak, Mateusz; Jerominko, Tomasz; Jóźwiakowska, Karolina; Lisik, Katarzyna; Lobur, Mykhaylo; Łągiewka, Monika; Melnyk, Mykhaylo; Noga, Henryk; Piaskowska-Silarska, Małgorzata; Pytel, Krzysztof; Wagner, Aleksandra; Zdobytskyi, Andriy; Banaś, Marian
Rozwój cywilizacyjny stanowi fundamentalny aspekt postępu, wiąże się jednak z wywieraniem znaczącego, często negatywnego, wpływu na środowisko, jego przekształcaniem w zaskakująco szybkim tempie i wyczerpywaniem zasobów naturalnych. Wobec tego niezbędne jest podejmowanie działań, które zapewnią równowagę między potrzebami związanymi z rozwojem cywilizacji a dbałością o zachowanie środowiska naturalnego w optymalnym stanie. Jednym ze sposobów osiągnięcia równowagi środowiskowej jest wdrożenie i przestrzeganie zasad zrównoważonego rozwoju. W monografii przedstawiono szeroki wachlarz problemów związanych z inżynierią i ochroną środowiska. Jej tematyka obejmuje m.in.: <ul><li>problemy projektowania błękitno-zielonej infrastruktury na terenie Krakowa,</li><li>analizę dyspersji zanieczyszczeń powietrza wzdłuż ciągów komunikacyjnych na przykładzie Łodzi, </li><li>analizę poziomów zanieczyszczeń powietrza w pomieszczeniach dydaktycznych w budynkach po modernizacji,</li><li>analizę stanu i zmian zbiorników wodnych w Krakowie oraz okolicach w ciągu ostatnich dwudziestu lat,</li><li>znaczenie infrastruktury zielonej (roślinności wieloletniej i łąk kwietnych) w Krakowie na przykładzie parku Krakowskiego i parku Jordana,</li><li>funkcjonowanie baz infrastruktury oczyszczalni hydrofitowych,</li><li>rezultaty zakazu palenia węglem na przykładzie Krakowa,</li><li>analizę wpływu zanieczyszczeń powietrza atmosferycznego na środowisko i zdrowie ludności,</li><li>analizę trendów zmian zanieczyszczeń powietrza w środowisku miejskim na podstawie wyników z monitoringi powietrza atmosferycznego.</li></ul>We wszystkich przedstawionych w monografii prośrodowiskowych działaniach wspólnym narzędziem wspomagającym jest zastosowanie nowoczesnych technik do realizacji idei zrównoważonego rozwoju, ochrony środowiska i zapewnienia równowagi ekologicznej.
Access status: Open Access ,
Topology optimization parameters of blades of wind turbines
(Wydawnictwa AGH, 2023) Pytel, Krzysztof; Zdobytskyi, Andriy; Lobur, Mykhaylo; Panchak, Roman; Hnatiuk, Anna
This work provides peculiarities of the production of various elements of complex geometric shapes by the newest technologies of additive production. It considers the possibility of modernizing and improving the design of wind turbine blades by the classical method of topological optimization while taking the wind load vector into account and preserving their functional properties. Using the topological optimization algorithm of the Inventor Nastran software environment, the design of a wind turbine blade was automatically generated in accordance with the geometric constraints on the shape and minimization in terms of its weight and maximum rigidity. It also shows the peculiarities of generating a wind turbine blade design with changes in the parameters of topological optimization ([COMPVF], [TOPTMANCONSTR], [TOPGEN], and [TOPTMANCORD]) and the maximum and minimum airflow forces.
Access status: Open Access ,
Ways to increase efficiency of lidar scan system of three-dimensional objects
(Wydawnictwa AGH, 2023) Zdobytskyi, Andriy; Marikutsa, Uliana; Khranovskyi, Mykola; Yusiuk, Vladyslav
This article discusses the main methods of scanning three-dimensional objects and the features of using lidars as devices for this purpose; it is a comparative analysis of different types of optical, acoustic, and laser devices. Areas of the use of these technologies have been considered. The principle of laser scanning operations is also described in detail, as is the operations of radiating and reading devices. Information is recorded by the system about an object as well as additional parameters. The classification of the returned signal and additional attributes that the sensor takes into account are considered. Based on this information, a mobile system has been developed that optimizes the use of lidars and allows one to use similar systems that work with mobile applications.