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master's thesis
Postolje za ispitivanje dodirnog pritiska između transformatorskih limova
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. urn:nbn:hr:235:121894
Pavić, Petar
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

Cite this document

Pavić, P. (2020). Postolje za ispitivanje dodirnog pritiska između transformatorskih limova (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:121894

Pavić, Petar. "Postolje za ispitivanje dodirnog pritiska između transformatorskih limova." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:121894

Pavić, Petar. "Postolje za ispitivanje dodirnog pritiska između transformatorskih limova." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:121894

Pavić, P. (2020). 'Postolje za ispitivanje dodirnog pritiska između transformatorskih limova', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 14 July 2024, https://urn.nsk.hr/urn:nbn:hr:235:121894

Pavić P. Postolje za ispitivanje dodirnog pritiska između transformatorskih limova [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2020 [cited 2024 July 14] Available at: https://urn.nsk.hr/urn:nbn:hr:235:121894

P. Pavić, "Postolje za ispitivanje dodirnog pritiska između transformatorskih limova", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:235:121894

Metadata
TitlePostolje za ispitivanje dodirnog pritiska između transformatorskih limova
Title (english)Test stand for determination of contact pressure distribution between transformer sheets
AuthorPetar Pavić
MentorKrešimir Vučković (mentor)
Committee memberZoran Lulić (predsjednik povjerenstva)
Committee memberKrešimir Vučković (član povjerenstva)
Committee memberMatija Hoić (član povjerenstva)
Committee memberPetar Ilinčić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2020-01-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
General Mechanical Engineering (Construction)
Abstract
Rad se bavi razradom konstrukcijskog rješenja ispitnog postolja za ispitivanje raspodjele kontaktnog tlaka među limovima transformatorske jezgre. U uvodnom djelu opisana je motivacija za bavljenjem navedenom tematikom. U drugom poglavlju je napravljen kratki pregled osnovnih dijelova steznog sustava energetskog transformatora. U trećem poglavlju opisana su mehanička svojstva transformatorskih limova dobivena statičkim tlačnim pokusom te je predstavljen analitički izvod za raspodjelu kontaktnog tlaka. U četvrtom poglavlju je napravljena analiza postojećih eksperimenata s ciljem proučavanja mogućih konstrukcijskih rješenja ispitnog postolja. U petom poglavlju analizirane su tri potencijalne metode za mjerenje raspodjele kontaktnog tlaka uz navođenje njihovih prednosti i nedostataka. Kako bi se osigurala ponovljivost mjerenja, potrebno je osigurati da se u sustav pri svakom ispitivanju unosi jednak iznos sile. Iz tog razloga je u šestom poglavlju napravljen pregled jedne od najpouzdanijih metoda za određivanje sile u vijku, tj. metode koja koristi ultrazvučni mjerač. U sedmom poglavlju, na temelju funkcijske strukture i morfološke matrice, generirano je nekoliko različitih koncepata ispitnog postolja i provedeno je vrednovanje svakog od njih. U osmom poglavlju je odabrano najbolje i najrealnije rješenje za detaljnu razradu. Razrađeno je konstrukcijsko rješenje koje je dimenzionirano prema određenim dijelovima koji se standardno koriste za stezanje transformatorske jezgre u tvrtki Končar Energetski Transformatori d.o.o. Najvažniji parametar razrade ispitnog postolja bila je sposobnost ispitnog postolja da ispita sve moguće standardno korištene stezne elemente. Na kraju, u devetom poglavlju, prikazan je kratak osvrt na proces konstruiranja ispitnog postolja i predviđeni su budući koraci koji se nadovezuju na ovaj rad.
Abstract (english)
The thesis deals with the test rig design for contact pressure distribution testing between the transformer core sheets. The introductory part describes the motivation for dealing with this topic. In the second chapter, a brief overview of the basic parts of the power transformer clamping system is given. Chapter three describes the mechanical properties of transformer sheets obtained during static compression test and also presents an analytical expression for the contact pressure distribution. In Chapter 4, an analysis of existing experiments is made in order to study the possible design concepts of the test rig. In Chapter Five, three potential methods for contact pressure distribution measuring are analyzed, listing their advantages and disadvantages. In order to ensure repeatability of measurements, it’s necessary to ensure that an equal amount of force is introduced into the system at each test. For this reason, Chapter 6 gives an overview of one of the most reliable methods for determining the bolt force, that is, the method that uses an ultrasonic meter. In the seventh chapter, based on the functional structure and morphological matrix, several different test rig concepts were generated and an evaluation of each was conducted. In Chapter 8, the best and most realistic solution for detailed elaboration is selected. A design solution that’s dimensioned according to standard parts used for the transformer core clamping in Končar Power Transformers Ltd. has been developed. The most important parameter of test rig design was the ability to test all possible clamping elements. Finally, Chapter 9 presents a brief overview of the test bed construction process and outlines future steps that build on this work.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:121894
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2022-01-24
Terms of useLicence In copyright icon
Created on2020-01-19 14:45:33