Browsing by Subject "Structural Dynamics"
Now showing items 1-14 of 14
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Corrosion fatigue analysis of NREL's 15-MW offshore wind turbine with time-varying stress concentration factors
(2024)Over the last twenty years, significant development in wind turbine technologies has led to a dramatic increase in the scale of wind turbines with many now beginning to be installed in offshore locations. Consequently, ... -
Damping Ratio Estimation for a Slender Modular Building from Full Scale Ambient Response Monitoring
(2023)The application of modular construction in tall slender structures is a relatively novel concept. Modular buildings with heights exceeding 130m have been successfully constructed by combining reinforced concrete cores with ... -
The Effect of Acceleration Signal Length on the Outputs from Modal Identification Methods
(2023)The damping ratio is a significant factor influencing the dynamic behaviour of a structure. The safety, serviceability and habitability of a structure are all impacted by the damping ratio. Damping ratio does not relate ... -
Enhancing the reliability of floating offshore wind turbine towers subjected to misaligned wind-wave loading using tuned mass damper inerters (TMDIs)
(2023)Floating offshore wind turbines (FOWTs) are the largest rotating structures on the earth. Dynamically sensitive structures such as these must be protected in these environments to ensure that they can continue to operate ... -
Impact of Sources of Damping On the Fragility Estimates of Wind Turbine Towers
(2024)Fragility estimates in wind turbine towers have been investigated but the the effect of damping on fragility has not been studied. While damping can often be small, it can come from different sources for a wind turbine. ... -
Mitigation of wind induced accelerations in tall modular buildings
(2022)This paper compares two methods of mitigating wind induced vibrations in tall modular buildings. Tall buildings experience wind induced motion which can result in serviceability and habitability issues associated with ... -
Model Validation for the Wind Response of Modular High-Rise Buildings through Full Scale Monitoring
(2022)For many tall building forms, habitability requirements associated with excessive acceleration response become a governing design criterion as building heights increase. This study considers the wind-induced acceleration ... -
Regression models for predicting the inelastic seismic response of steel braced frames
(2022)This paper describes the development of regression equations to predict the peak inelastic drift and acceleration response of steel concentrically braced frame (CBF) building structures. A database of Engineering Demand ... -
Structural damping estimation from live monitoring of a tall modular building
(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 time and ensemble equivalent linearization method for nonlinear systems under combined harmonic and random excitation
(2023)An Equivalent Linearization technique, termed an Equivalent Linearization Time and Ensemble Expectation (EL-TEE) approach, is used to develop an alternative method for estimating the response of a nonlinear oscillator to ... -
Tuned mass-damper-inerter (TMDI) for suppressing edgewise vibrations of wind turbine blades
(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 ... -
Validation of Acceleration Response Modelling for Modular High Rise Structures through Full Scale Monitoring
(2023)For many tall building forms, habitability requirements associated with excessive acceleration response become a governing design criterion as building heights increase. The application of modular construction methods ... -
Vibration control of spar-type floating offshore wind turbine towers using a tuned mass-damper-inerter
(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 ...