Numerical modal analysis of a 850 KW wind turbine steel tower

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dc.contributor.authorFerroudji, Fateh
dc.contributor.statusnemhu_HU
dc.date.accessioned2021-04-01T06:33:37Z
dc.date.available2021-04-01T06:33:37Z
dc.date.issued2021-03-20
dc.description.abstractThe study deals with the numerical analysis aspects that are necessary for identifying of modal parameters of the tower structure as the most important part of the horizontal axis wind turbine, which are basic for the dynamic response analysis. In the present study, the modal behavior of an actual 55-m-high steel tower of 850 KW wind turbine (GAMESA G52/850 model) is investigated by using three-dimensional (3D) Finite Element (FE) method. The model was used to identify natural frequencies, their corresponding mode shapes and mass participation ratios, and the suggestions to avoid resonance for tower structure under the action wind. The results indicate that there is a very good agreement with the fundamental vibration theory of Euler-Bernoulli beam with lamped masse in bending vibration modes. When the rotor of the wind turbine runs at the speed of less than or equal to 25.9 rpm it will not have resonant problems (stiff–stiff tower design). Furthermore, in case the rotor runs at the speed of between 25.9 and 30.8 rpm, the adequate controller is necessary in order to avoid the corresponding resonant susceptible area of the tower structure (soft–stiff tower design).hu_HU
dc.identifier.doi10.1556/1848.2020.00091hu_HU
dc.identifier.issn2062-0810
dc.identifier.issue1hu_HU
dc.identifier.jtitleInternational Review of Applied Sciences and Engineering
dc.identifier.urihttp://hdl.handle.net/2437/305045
dc.identifier.urlhttps://akjournals.com/view/journals/1848/12/1/article-p10.xmlhu_HU
dc.identifier.volume12hu_HU
dc.language.isoenhu_HU
dc.publisherAkadémiai Kiadóhu_HU
dc.subjectwind turbine towerhu_HU
dc.subjectmodal analysishu_HU
dc.subjectnatural frequencieshu_HU
dc.subjectmode shapeshu_HU
dc.subjectfinite element methodhu_HU
dc.subjectmass participation ratiohu_HU
dc.titleNumerical modal analysis of a 850 KW wind turbine steel towerhu_HU
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International Review of Applied Sciences and Engineering