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Structural analysis and optimal design of steel lattice wind turbine towers
Department of Civil Engineering, School of Engineering, University of Birmingham, Birmingham, UK .
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-6150-7241
Department of Civil Engineering, School of Engineering, University of Birmingham, Birmingham, UK .
2019 (English)In: Proceedings of the Institution of Civil Engineers: Structures and buildings, ISSN 0965-0911, E-ISSN 1751-7702, Vol. 172, no 8, p. 564-579Article in journal (Refereed) Published
Abstract [en]

Wind energy has shown its dominance among the means of sustainable energy production by the accelerating rise in total installed capacity and increase in size of wind energy structures. Taking into consideration the fact that the supporting structure of onshore wind power generators constitutes approximately one-third of the initial construction cost, structural optimisation of the tower is considered crucial towards the minimisation of capital expenditure during construction. Contemporary energy needs employ the construction of constantly taller and more powerful wind power converters, whose robust design in parallel with compression of initial capital expenditure cannot be neglected. The dominant structural configuration for onshore wind power generators is the tapered steel tower, but lattice towers using enhanced special cross-sections can be a rather promising solution towards economy of material use. The present paper addresses the structural performance and optimisation of tubular and lattice steel wind turbine towers, examining alternative configuration solutions for a given height and rotor characteristics. The finite-element software Abaqus has been used for the implementation of the structural models and an algorithm has been elaborated in Mathematica software in order to allow for optimisation of the use of the cross-section in the case of lattice towers.

Place, publisher, year, edition, pages
ICE Publishing , 2019. Vol. 172, no 8, p. 564-579
Keywords [en]
buildings, structures & design, mathematical modelling, steel structures
National Category
Other Civil Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-75349DOI: 10.1680/jstbu.18.00074ISI: 000476648500004Scopus ID: 2-s2.0-85069482773OAI: oai:DiVA.org:ltu-75349DiVA, id: diva2:1338548
Note

Validerad;2019;Nivå 2;2019-07-23 (svasva)

Available from: 2019-07-23 Created: 2019-07-23 Last updated: 2019-08-21Bibliographically approved

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Koltsakis, Efthymios

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