This paper considers the potential of using a Tuned Liquid Column Damper (TLCD) to reduce structural vibrations of a wind turbine tower. The effect of TLCD on wind turbine towers, including the soil-structure interactions for a monopile foundation was modelled theoretically and scaled laboratory experiments were carried out to validate these results. The tower of the turbine is represented as an Euler beam with a set of springs at the boundary to simulate the soilstructure interaction. TLCD design was carried out using such a model and the reduction in tower vibrations due to the deployment of TLCD was then examined for various loading conditions in the frequency and the time domain. The efficiency of TLCDs for reducing structural vibrations was investigated for tuned and detuned conditions. The response of a smallscale model was simulated along with that of a full-scale turbine and parametric studies around the variations of inputs related to uncertainties were performed. Experiments were carried out on a scaled model turbine to examine the effectiveness of the TLCD. The practicalities of installing a TLCD in a full-scale turbine were examined.
Violent wave breaking at seawalls can produce significant landward pressure fields with ability to damage adjacent on-shore structures. To date quantification of these pressure fields is little understood. This paper uses the numerical modelling approach of smoothed particle hydrodynamics (SPH) to simulate this phenomenon. Favourable comparison with experimental work demonstrates the potential of the SPH method in this application.
This study considers the wave overtopping loads on a building behind a rubble mound breakwater using 2D numerical modelling. The building will be used as Coast Guard station in Greystones Marina, which is located on the Irish Sea. Similar studies, using physical modelling, were carried out recently by Watson et al. (2018) and Park et al. (2017). The applicability of the numerical model in predicting wave overtopping forces is discussed. Appropriate design wave conditions are considered and the resultant loads are assessed to determine their impact on the design of the proposed building.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/4tZfjVDRPT4
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.