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master's thesis
Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama
2016. urn:nbn:hr:133:989965
Lučić, Sanda
Josip Juraj Strossmayer University of Osijek
Faculty of Civil Engineering and Architecture Osijek
Department for Technical Mechanics
Chair of Technical Mechanics

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Lučić, S. (2016). Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:133:989965

Lučić, Sanda. "Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:133:989965

Lučić, Sanda. "Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, 2016. https://urn.nsk.hr/urn:nbn:hr:133:989965

Lučić, S. (2016). 'Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, accessed 20 November 2023, https://urn.nsk.hr/urn:nbn:hr:133:989965

Lučić S. Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek; 2016 [cited 2023 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:133:989965

S. Lučić, "Modeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, Osijek, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:133:989965

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Metadata
TitleModeliranje utjecaja prigušenja djelovanja malih vjetroturbina u gradskim sredinama
Title (english)Modelling of damping in small wind turbines
AuthorSanda Lučić
MentorIvica Guljaš (mentor)
Committee memberAleksandar Jurić (predsjednik povjerenstva)
Committee memberIvica Guljaš (član povjerenstva)
Committee memberDavorin Penava (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Civil Engineering and Architecture Osijek
(Department for Technical Mechanics)
(Chair of Technical Mechanics)
Osijek
Defense date and country2016-11-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Supporting Structures
Abstract
Vibracije koje nastaju kao posljedica rada strojeva, prometa i drugih izvora bogatih frekvencijom mogu uzrokovati deformacije nosivih i nenosivih konstrukcijskih elemenata te pojavu pukotina na njima, ali vrlo često uzrokuju i probleme koji nastaju zbog zamora materijala. Također, ovakve vibracije mogu stvoriti osjećaj nelagode ljudima koji se nalaze unutar konstrukcije. S druge strane, vjetroturbine se vrlo često mogu pronaći u urbanim sredinama okružene zgradama ili postavljene na krovove istih. Iako vjetroturbine potiču proizvodnu „zelene“ energije, one također proizvode vibracije koje mogu negativno utjecati i na konstrukciju i na živa bića. Ovaj rad nastoji istražiti utjecaj vibracija koje nastaju uslijed rada male vjetroturbine postavljene na krov zgrade u urbanoj sredini, te modeliranjem različitih tipova prigušivača umanjiti navedene utjecaje u što većoj mjeri. Podloga za ovo istraživanje je sustav tlo-konstrukcija-vjetroturbina koji je modeliran korištenjem računalnih programa Ashes 1.2 i SAP2000. Konstrukcije modelirane u ovom radu su tipične za područje grada Osijeka, a vjetroturbina koja je modelirana je Bergey Excel 1kW, koja je dostupna na području Republike Hrvatske. U radu se nastojalo prigušiti vibracije principom koji je najprikladniji kod malih vjetroturbina – izolacijom. U skladu s ovom težnjom, uspoređen je utjecaj elastomernog uređaja i uređaja s oprugama. Također, opisan je postupak modeliranja TMD uređaja. Analiza rezultata provedena je za karakteristične točke plošnih elemenata na različitim etažama konstrukcije, a vrijednosti očitane u njima su zatim uspoređene sa propisanim dopuštenim vrijednostima.
Abstract (english)
Vibrations induced by machinery, traffic and other stochastic frequency-rich sources may cause deformations and cracks on both structural and non-structural elements but also fatigue related problems. Moreover, vibrations in buildings may cause discomfort for people and animals. On the other hand, wind turbines may often be found in urban areas surrounded by buildings or placed a top of a building. Although the turbines support green engineering and production of clean energy, they also produce vibrations that may negatively influence the behaviour of both structures and living beings. This paper aims to investigate effects of vibrations generated by small-scale wind turbines placed on buildings in urban areas and also to reduce those vibrations by modelling and installing different kinds of damping devices. A platform for this research is a soil-structure-wind turbine system which was modelled by using software Ashes 1.2 and SAP2000. Structures selected for this case study are typical buildings that can be found in city of Osijek, and modelled wind turbine is Bergey Excel 1kW, which is available on the market of Republic of Croatia. The aim of this research was to reduce vibrations by using the most convenient principle of damping for small wind turbines – isolation. According to that, the influence of elastomeric and spring device were compared. Additionally, the process of TMD device modelling is presented in this paper. The analysis of the results was carried out for different characteristic points on shell elements on different floors. Those values are compared to values given by different norms and standards.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:133:989965
Study programmeTitle: University graduate study in civil engineering; specializations in: Hydraulic engineering, Supporting structures, Construction management and technology, Transportation engineering
Course: Supporting structures
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2016-11-28 16:29:38