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scientific master's theses
Spektralna analiza zamora brodskih konstrukcija
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2002. urn:nbn:hr:235:045446
Rudan, Smiljko
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

Rudan, S. (2002). Spektralna analiza zamora brodskih konstrukcija (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:045446

Rudan, Smiljko. "Spektralna analiza zamora brodskih konstrukcija." Scientific master's theses, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2002. https://urn.nsk.hr/urn:nbn:hr:235:045446

Rudan, Smiljko. "Spektralna analiza zamora brodskih konstrukcija." Scientific master's theses, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2002. https://urn.nsk.hr/urn:nbn:hr:235:045446

Rudan, S. (2002). 'Spektralna analiza zamora brodskih konstrukcija', Scientific master's theses, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:045446

Rudan S. Spektralna analiza zamora brodskih konstrukcija [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2002 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:045446

S. Rudan, "Spektralna analiza zamora brodskih konstrukcija", Scientific master's theses, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2002. Available at: https://urn.nsk.hr/urn:nbn:hr:235:045446

Metadata
TitleSpektralna analiza zamora brodskih konstrukcija
Title (english)Spectral fatigue analysis of ship structures
AuthorSmiljko Rudan
MentorIvo Senjanović (mentor)
Committee memberSlobodan Kralj (predsjednik povjerenstva)
Committee memberIvo Senjanović (član povjerenstva)
Committee memberTomislav Filetin (član povjerenstva)
Committee memberMirko Husnjak (član povjerenstva)
Committee memberNenad Vulić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2002-02-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Shipbuilding
Universal decimal classification
(UDC)		629.5 - Watercraft engineering
Abstract
Gradnju suvremenih brodova odlikuje izrada nestandardnih strukturnih detalja, korištenje čelika povišene čvrstoće, optimizacija konstrukcije uz pouzdanije određivanje kriterija nosivosti. Takve značajke gradnje često su praćene povećanim rizikom zamornog oštećenja. Zamor materijala u strukturnim detaljima brodskih konstrukcija prepoznat je kao značajan problem i predmet je intenzivne znanstveno-istraživačke aktivnosti. U radu je prikazan kratak pregled postupaka analize zamora brodskih konstrukcija. \Naglasak je stavljen na spektralnu metodu analize zamora kao sofisticiranog načina proračuna očekivane dinamičke izdržljivosti konstrukcije. Prikazana su i napravljena sva četiri koraka spektralne analize. Izrađeni su globalni i lokalni modeli konačnih elemenata i određene prijenosne funkcije naprezanja za tipičan strukturni detalj tankera s dvostrukom oplatom. Posebno je prikazan postupak određivanja žarišnih naprezanja. Na osnovi izračunatih prijenosnih funkcija određena je dugoročna razdioba naprezanja i izračunato je zamorno oštećenje detalja. Dobiveni rezultati uspoređeni su s rezultatima pojednostavljenog proračuna i nekim rezultatima poznatim iz literature.
Abstract (english)
Building of modern cargo ships is characterized by nonstandard structural details design, the application of high tensile steels and the construction optimization by reliable determination of load carrying capability. Such shipbuilding characteristics are often accompanied by increased risks of fatigue damage. Fatigue of structural details in ship constructions is recognized as an important problem and has become a subject of intensive scientific research. A short review of the methods for fatigue analysis of ship constructions is presented in this thesis. The emphasis is on the spectral fatigue analysis method, which is a sophisticated fatigue strength evaluation method. All four steps of the spectral analysis method are presented. Global and local finite element models were generated and stress transfer functions for a typical structural detail of a double hull tanker were determined. Special attention is paid to hot-spot stresses evaluation procedure. On the basis of known stress transfer functions, a long-term stress range distribution was evaluated and then fatigue damage was calculated. The obtained results were compared with the results of simplified fatigue damage calculation and the published results.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:045446
Study programmeTitle: Naval Architecture - mr.sc.
Study programme type: university
Study level: postgraduate
Academic / professional title: magistar znanosti (magistar znanosti)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-12-28 13:39:38