Optimiranje dinamičkih svojstava plinske turbine

Jurjević, Zdenko

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doctoral thesis

Optimiranje dinamičkih svojstava plinske turbine

Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2008. urn:nbn:hr:235:538024

Jurjević, Zdenko

University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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APA 6th Edition

Jurjević, Z. (2008). Optimiranje dinamičkih svojstava plinske turbine (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:538024

MLA 8th Edition

Jurjević, Zdenko. "Optimiranje dinamičkih svojstava plinske turbine." Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2008. https://urn.nsk.hr/urn:nbn:hr:235:538024

Chicago 17th Edition

Harvard

Jurjević, Z. (2008). 'Optimiranje dinamičkih svojstava plinske turbine', Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 22 January 2025, https://urn.nsk.hr/urn:nbn:hr:235:538024

Vancouver

Jurjević Z. Optimiranje dinamičkih svojstava plinske turbine [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2008 [cited 2025 January 22] Available at: https://urn.nsk.hr/urn:nbn:hr:235:538024

IEEE

Z. Jurjević, "Optimiranje dinamičkih svojstava plinske turbine", Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2008. Available at: https://urn.nsk.hr/urn:nbn:hr:235:538024

Cite this item: https://urn.nsk.hr/urn:nbn:hr:235:538024

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Metadata

Title	Optimiranje dinamičkih svojstava plinske turbine
Title (english)	Optimisation of the gas turbine dynamic characteristics
Author	Zdenko Jurjević VIAF: 305670638
Mentor	Milenko Stegić (mentor)
Committee member	Ivo Senjanović (predsjednik povjerenstva)
Committee member	Milenko Stegić (član povjerenstva)
Committee member	Mirko Butković (član povjerenstva)
Granter	University of Zagreb Faculty of Mechanical Engineering and Naval Architecture Zagreb
Defense date and country	2008-03-27, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Mechanical Engineering
Universal decimal classification (UDC)	621 - Mechanical engineering. Nuclear technology. Machinery 629 - Transport vehicle engineering 53 - Physics
Abstract	Projektni prostor za optimiranje konture rotora plinske turbine vrlo je sužen brojnim projektnim zahtjevima pa za optimiranje konture s motrišta zadovoljenja vibracijskih kriterija, praktički, nema dovoljno projektnog prostora. U drugu ruku, vibracijska svojstva oslonaca imaju veliki utjecaj na cjelokupno vibracijsko ponašanje plinske turbine. Uz to, elastično ovješenje čini plinsku turbinu vrlo osjetljivom na vlastite frekvencije statorske konstrukcije koje mogu uzrokovati rad u rezonanciji i vibracijsku nestabilnost. U radu je pokazano da se vibracijska svojstva plinske turbine mogu značajno poboljšati pravilnim odabirom parametera oslonaca rotora i kućišta turbine. Dva pristupa optimiranja primjenjena su u ovom radu: inženjerski pristup (temeljen na inženjerskom iskustvu i intuiciji) i postupak metodom planiranja pokusa (primjenom statističkih metoda u planiranju, vođenju, razmatranju i tumačenju rezultata). Na kraju je napravljena usporedba oba pristupa s motrišta kakvoće pronađenih optimalnih rješenja i uloženog truda potrebnog za provedbu optimiranja.
Abstract (english)	The design space for the optimisation of gas turbine rotor contour is very narrow due to many limitations and constrains. On the other hand, the support dynamic characteristics could have a large impact on the vibration characteristic of the whole engine. Moreover, flexible supports make the gas turbine very sensitive to the support structure eigenfrequencies that could cause resonant operation and dynamic instability. In this research it is shown that it is possible to find optimum values of the bearing and gas turbine casing support modal parameters in order to improve engine dynamic characteristics. Two optimisation approaches are presented in this research: first the common engineer's approach (based on engineering experience and intuition) and secondly design of experiments approach (using statistical methods in conducting, analysing and interpreting the results). The approaches to optimise dynamic characteristics are compared from the quality of the optimum found and the effort required to perform the analyses.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:235:538024
Study programme	Title: Mechanical Engineering and Naval Architecture Study programme type: university Study level: postgraduate Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti (doktor/doktorica znanosti, područje tehničkih znanosti)
Type of resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb
Created on	2020-12-03 13:38:49