A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Control of wind/wave-induced vibrations of jacket-type offshore wind turbines through tuned liquid column gas dampers
Wind/wave-induced vibrations of jacket-type offshore wind turbines (JOWTs) are suppressed by placing a passive vibration absorber, called tuned liquid column gas damper (TLCGD), on the turbine nacelle. Adopting an ensemble of 75 wind/wave combinations, three different JOWTs and a SimuLink-based nonlinear model in time domain, main parameters of the TLCGD are optimised to reach the minimum standard deviation of nacelle displacement. Obtained results indicate that contribution of the proposed TLCGD is more pronounced in the case of regular excitations such as those from sea waves and less turbulent winds. Depending on the wind/wave combination, TLCGD can result in reductions up to 45% and 51% in nacelle displacement standard deviation and maximum acceleration, respectively. As a result, TLCGD deemed to be well suited to protect fatigue critical JOWTs as well as acceleration-sensitive devices of the nacelle.
Control of wind/wave-induced vibrations of jacket-type offshore wind turbines through tuned liquid column gas dampers
Wind/wave-induced vibrations of jacket-type offshore wind turbines (JOWTs) are suppressed by placing a passive vibration absorber, called tuned liquid column gas damper (TLCGD), on the turbine nacelle. Adopting an ensemble of 75 wind/wave combinations, three different JOWTs and a SimuLink-based nonlinear model in time domain, main parameters of the TLCGD are optimised to reach the minimum standard deviation of nacelle displacement. Obtained results indicate that contribution of the proposed TLCGD is more pronounced in the case of regular excitations such as those from sea waves and less turbulent winds. Depending on the wind/wave combination, TLCGD can result in reductions up to 45% and 51% in nacelle displacement standard deviation and maximum acceleration, respectively. As a result, TLCGD deemed to be well suited to protect fatigue critical JOWTs as well as acceleration-sensitive devices of the nacelle.
Control of wind/wave-induced vibrations of jacket-type offshore wind turbines through tuned liquid column gas dampers
Dezvareh, Reza (author) / Bargi, Khosrow (author) / Mousavi, Seyed Amin (author)
Structure and Infrastructure Engineering ; 12 ; 312-326
2016-03-03
15 pages
Article (Journal)
Electronic Resource
English
Tuned liquid column dampers in offshore wind turbines for structural control
| Online Contents | 2009
Tuned liquid column dampers in offshore wind turbines for structural control
| Online Contents | 2009