prikaz prve stranice dokumenta Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo
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master's thesis
Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. urn:nbn:hr:235:254398
Popović, Marija
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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

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Popović, M. (2020). Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:254398

Popović, Marija. "Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:254398

Popović, Marija. "Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2020. https://urn.nsk.hr/urn:nbn:hr:235:254398

Popović, M. (2020). 'Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 16 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:254398

Popović M. Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2020 [cited 2024 November 16] Available at: https://urn.nsk.hr/urn:nbn:hr:235:254398

M. Popović, "Numerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:235:254398

Metadata
TitleNumerička analiza helikoptera s kompozitnom konstrukcijom poda pri udaru u tlo
Title (english)Numerical analysis of ground impact of a helicopter with a composite floor structure
AuthorMarija Popović
MentorDarko Ivančević (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2020-05-15, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
U ovome radu biti će riječ o numeričkoj analizi udara konstrukcije poda helikoptera u tlo u programskom paketu Abaqus/Explicit s ciljem određivanja opterećenja kojima je u tom slučaju izložena posada. Modeliran je jednodijelni aluminijski model koji je validiran podacima iz literature gdje je eksperimentalno ispitan dio konstrukcije poda helikoptera Westland WG30 u kojem je smještena posada. Zatim su kritični dijelovi konstrukcije modelirani detaljno, zakovičnim spojem, te se na tom modelu također vrši validacija. U sljedećem poglavlju vrši se izrada numeričkog modela kompozitne podnice helikoptera na dva načina – kao monolitnu i kao sandwich konstrukciju uzimajući u obzir svojstva materijala koji se koriste u tu svrhu u realnim konstrukcijama. Podnica je opterećena prvo krutom pločom kako bi simulacija pratila eksperiment, zatim konstrukcijom sjedala i masom posade. Analiza konstrukcijom sjedala vršena je na dvije monolitne podnice različitih orijentacija te sandwich podnici helikoptera koje su međusobno uspoređene kako bi se odredio utjecaj izvedbe podnice na opterećenja posade helikoptera. Na kraju se proučava utjecaj debljine jezgre sandwich kompozitne podnice helikoptera.
Abstract (english)
The aim of this study is to perform a numerical analysis of the impact of a helicopter floor structure on the ground in the Abaqus/Explicit software package to determine the loads to which the crew is exposed. A one-piece aluminum model has been modeled that has been validated using experimental data from the available literature. The part of the floor structure containing the crew of the Westland WG30 helicopter has been tested in this experiment. Then, the critical parts of the structure are modeled in detail, with a rivet joint, and validation is also performed on that model. In the next section, the numerical model of a composite helicopter floor is made in two ways - as a monolithic and as a sandwich structure, considering the properties of the materials used for this purpose in real structures. The floor was first loaded with a rigid plate for the simulation to follow the experiment, then with seat structure and crew mass. The seat structure analysis was performed on two monolithic floors of different ply layups and a helicopter sandwich floor. The results of these analyses were compared to each other to determine the impact of the floor design on helicopter crew loads. Finally, the effect of the core thickness of the sandwich composite helicopter floor is studied.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:254398
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
Terms of useLicence In copyright icon
Created on2020-05-07 10:32:32