Browsing by Author "Fitzgerald, Breiffni"
Now showing items 21-27 of 27
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Structural damping estimation from live monitoring of a tall modular building
Fitzgerald, Breiffni; Broderick, Brian (2023)The damping ratio is a key indicator of an individual structure's susceptibility to dynamic loads, including the level of discomfort experienced by the occupants of a tall building subjected to wind loading. While ... -
A study of wind-wave misalignment for the Irish coastline and its effect on the wind turbine response
Fitzgerald, Breiffni (2022)A wind turbine is one of the largest rotating structures on earth. More wind turbines are now being developed with taller towers and longer blades, making them more flexible. As a result, an offshore wind turbine can ... -
The Uncertainty of Damping Ratios Obtained Using Modal Identification Techniques and Full-Scale Acceleration Data
ICASP14; Broderick, Brian; Fitzgerald, Breiffni; Hickey, John; Moore, Hollie (2023)The damping ratio of a structure has a large influence on its ability to meet serviceability and habitability requirements under dynamic loading. In practice, design analysis relies on estimates of damping ratios from ... -
Tuned mass-damper-inerter (TMDI) for suppressing edgewise vibrations of wind turbine blades
Fitzgerald, Breiffni (2020)This paper proposes the use of a tuned mass-damper-inerter (TMDI) for the mitigation of edgewise blade vibrations in wind turbines. The hollow nature of the wind turbine blades is utilized to install a TMDI at a location ... -
Vibration control of spar-type floating offshore wind turbine towers using a tuned mass-damper-inerter
Fitzgerald, Breiffni; Sarkar, Saptarshi (2019)This paper investigates the use of a passive tuned mass‐damper‐inerter (TMDI) for vibration control of spar‐type floating offshore wind turbine towers. The TMDI is a relatively new concept as a passive vibration control ... -
Vibration Control of Wind Turbines: Recent Advances and Emerging Trends
Fitzgerald, Breiffni; Basu, Biswajit (2020)The wind energy sector globally is expanding and developing technically at a rapid pace. Demand for renewable energy is soaring and there is a need for increasing the efficiency and design life of wind turbine ... -
Wavelet‐based individual blade pitch control for vibration control of wind turbine blades
Fitzgerald, Breiffni; Basu, Biswajit (2019)This paper proposes a novel individual blade pitch control strategy with the objective of reducing blade vibration. A wavelet linear quadratic regulator (LQR) control algorithm, which is an advanced modification of the ...