prikaz prve stranice dokumenta Prisilni odziv rotora sa tri diska uslijed neuravnoteženja
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undergraduate thesis
Prisilni odziv rotora sa tri diska uslijed neuravnoteženja
2021. urn:nbn:hr:190:996257
Golob, Petar
University of Rijeka
Faculty of Engineering
Department of Engineering Mechanics
Section of Machine Dynamics

Cite this document

Golob, P. (2021). Prisilni odziv rotora sa tri diska uslijed neuravnoteženja (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:996257

Golob, Petar. "Prisilni odziv rotora sa tri diska uslijed neuravnoteženja." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:190:996257

Golob, Petar. "Prisilni odziv rotora sa tri diska uslijed neuravnoteženja." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:190:996257

Golob, P. (2021). 'Prisilni odziv rotora sa tri diska uslijed neuravnoteženja', Undergraduate thesis, University of Rijeka, Faculty of Engineering, accessed 18 February 2025, https://urn.nsk.hr/urn:nbn:hr:190:996257

Golob P. Prisilni odziv rotora sa tri diska uslijed neuravnoteženja [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2021 [cited 2025 February 18] Available at: https://urn.nsk.hr/urn:nbn:hr:190:996257

P. Golob, "Prisilni odziv rotora sa tri diska uslijed neuravnoteženja", Undergraduate thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:190:996257

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Metadata
TitlePrisilni odziv rotora sa tri diska uslijed neuravnoteženja
Title (english)Forced rotor response with three disks due to unbalance
AuthorPetar Golob
MentorSanjin Braut (mentor)
Committee memberKristian Lenić (predsjednik povjerenstva)
Committee memberSanjin Braut (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Engineering Mechanics)
(Section of Machine Dynamics)
Rijeka
Defense date and country2021-09-14, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Ovaj završni rad daje uvid u teoriju vibracija te njezine dijelove vezane za rotodinamiku poput komponenti jednostavnih prigušenih vibracijskih sustava (masa – opruga – prigušivač). Također, opisani su načini funkcioniranja programa za rješavanje rotodinamičkih modela metodom konačnih elemenata, te načini određivanja mreže, to jest podjela modela na elemente uz pomoću St. Venantovog principa. Osnove za simulaciju opisanu u ovom radu je postavio H. Jeffcott 1919. godine te je ukratko opisan njegov akademski život te njegov prinos znanosti. Za simulaciju je modeliran asimetričan rotor s tri diska od kojih je svaki disk različitih dimenzija i karakteristika. Simulacija je rađena u programu Ansys u kojemu su se pronašle prvih 6 vlastitih frekvencija rotora s 3 diska, a potom je određen prisilni odziv rotora u središnjoj točki rotora za frekvencije od 0 do 500 Hz za slučajeve faznog i protufaznog neuravnoteženja od 200 g mm. Uz prisilni odziv prikazane su i forme vibriranja. Vlastite frekvencije su nađene 3D modelom dok su prisilni odziv i forme vibriranja nađene pomoću 1D modela.
Abstract (english)
This paper provides an insight into vibration theory and its parts related to rotodynamics such as components of simple damped vibration systems (mass, spring and damper). Also described are the ways in which programs for solving rotodynamic models by the finite element method function and the ways of determining the mesh, that is, the division of models into elements with the help of St. Venant's principle. The basis for the simulation described in this paper was laid by H. Jeffcott in 1919, and his academic life and his contribution to science are briefly described. For the simulation, an asymmetric rotor with three disks was modeled, each of the disks is of different dimensions and characteristics. The simulation was done in the Ansys program in which the first 6 natural frequencies of a 3-disk rotor were found, and then the forced rotor response at the rotor center point was determined for frequencies from 0 to 500 Hz for cases of phase and antiphase imbalance of 200 g mm. In addition to the forced response, vibration forms are shown for each case. The natural frequencies were found with the 3D model while the forced response and vibration forms were found using the 1D model.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:996257
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2021-10-20 06:35:23