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- W3134764070 abstract "The floating offshore wind turbine (FOWT) may have significant displacement and acceleration of the hub caused due to the wind-wave interaction. In this paper, a simplified cascaded analysis of the FOWT is presented in order to obtain a preliminary estimate of the responses of the hub using an iterative frequency domain technique. In order to carry out the analysis, the masses of the nacelle and rotor are lumped at the top of the hub, which is discretized into elements. At the base of the hub, two interface degrees of freedom consisting of a rotation and a translation is considered, which connect the two subsystems, namely, the hub and the floating body (spar). Both the wave and fluctuating components of the wind are considered as a random process represented by their power spectral density functions. The two subsystems are analyzed separately, and the interaction effect is incorporated through an iterative process. Using the above method of analysis, a FOWT having a 90m tall tower is analyzed under two random sea states, namely, 12m-18s and 5m-10s. Two mean wind velocities, namely, 12m/s and 20m/s are taken at the reference height of 10m. The results of the study indicate that significant absolute peak displacement and acceleration at the top of the hub may take place, requiring due attention to the safety of the design of FOWT." @default.
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- W3134764070 date "2021-02-01" @default.
- W3134764070 modified "2023-09-26" @default.
- W3134764070 title "Wind induced vibration of the tower of offshore wind turbine" @default.
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- W3134764070 doi "https://doi.org/10.1088/1755-1315/682/1/012008" @default.
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