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Coupled Systems Mechanics Volume 11, Number 6, December 2022 , pages 525-542 DOI: https://doi.org/10.12989/csm.2022.11.6.525 |
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Advanced approach to design of small wind turbine support structures |
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Ismar Imamovic, Suljo LJukovac and Adnan Ibrahimbegovic
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| Abstract | ||
| In this work we present an advanced approach to the design of small wind turbine support steel structures. To this end we use an improved version of previously developed geometrically exact beam models. Namely, three different geometrically exact beam models are used, the first two are the Reissner and the Kirchhoff beam models implementing bi-linear hardening response and the third is the Reissner beam capable of also representing connections response. All models were validated in our previous research for a static response, and in this work they are extended to dynamic response. With these advanced models, we can perform analysis of four practical solutions for the installation of small wind turbines in new or existing buildings including effects of elastoplastic response to vibration problems. The numerical simulations confirm the robustness of numerical models in analyzing vibration problems and the crucial effects of elastoplastic response in avoiding resonance phenomena. | ||
| Key Words | ||
| connection behavior; elastoplastic behavior; geometrically exact beam models; vibration problems; wind load | ||
| Address | ||
| Ismar Imamovic: University of Sarajevo-Faculty of Civil Engineering, Patriotske lige 30, Sarajevo, Bosnia and Herzegovina Suljo LJukovac: University of Sarajevo-Faculty of Civil Engineering, Patriotske lige 30, Sarajevo, Bosnia and Herzegovina; University of Technology Compiegne, Centre de Recherches Royallieu, Laboratory Roberval Mecanique, 60200 Compiegne, France Adnan Ibrahimbegovic: University of Technology Compiegne, Centre de Recherches Royallieu, Laboratory Roberval Mecanique, 60200 Compiegne, France | ||
