000019829 001__ 19829
000019829 005__ 20170118182338.0
000019829 04107 $$aeng
000019829 046__ $$k2017-01-09
000019829 100__ $$aSigurðsson, Guðmundur
000019829 24500 $$aEvaluation of Response Spectral Analysis for Large Land Based Wind Turbines in a Near Fault Area

000019829 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019829 260__ $$b
000019829 506__ $$arestricted
000019829 520__ $$2eng$$aThe dynamic response of a 5-MW land based wind turbine is calculated using different analysis methods. These methods include time history analysis using a large number of recorded near-fault ground motions; response spectral analysis using spectral shapes recommended in design codes; and that using near-fault specific response spectral model. The turbine tower is modelled with three dimensional beam-column elements with head masses lumped at the top of the tower. Results from linear elastic time series simulation indicate that overturning moment demand for a range of earthquake magnitude may exceed that due to extreme wind loads, making seismic loading in the near field a design-driving factor. It is found that the dominant period of near-fault ground motion relative to the fundamental structural period is a critical factor controlling seismic response. The results indicate that Eurocode 8 spectral shapes, even when scaled by peak ground acceleration of recorded near-fault ground motions, are not suitable to simulate seismic response of wind turbines. The response simulated using a near-fault specific response spectral model [1, 2] shows good correlation with those obtained from time history analysis.

000019829 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019829 653__ $$aWind turbine, response spectra, near-fault ground motion, pulse period

000019829 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019829 720__ $$aSigurðsson, Guðmundur$$iRupakhety, Rajesh$$iÓlafsson, Símon
000019829 8560_ $$ffischerc@itam.cas.cz
000019829 8564_ $$s622577$$uhttps://invenio.itam.cas.cz/record/19829/files/4500.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4500.
000019829 962__ $$r16048
000019829 980__ $$aPAPER