ShareWind - Open Science

Project documents and data repository

A repository of project papers and datasets is available at Zenodo

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Centrifuge modelling of the loading capacity of suction anchors in soft clay: towards multidirectional loadIn the framework of the development of solutions for the installation of wind farms in offshore locations, floating wind turbines are an attractive solution to access strong and stable wind conditions. This type of solution faces several challenges, including the mooring and anchoring costs. Anchor sharing is a means to optimize costs for potential wind farms based on floating platforms, as it implies a reduced number of anchors installed, less installation time and a reduced pressure on the supply chain. Recent research efforts on this topic have treated the problem in sandy soil profiles. ShareWind project aims at studying the loading capacity of suction anchors installed in soft clay seabed profiles and subjected to multidirectional loading. This paper introduces the initial development of the project, which involves a series of monotonic unidirectional loading tests conducted at the geotechnical centrifuge of Université Gustave Eiffel in France. The tests consisted of loading three suction anchors installed in kaolin clay, two anchors subjected to lateral load and one anchor to pullout load, to establish a baseline of monotonic loading capacities. Drawing from the insights gained in this inaugural experimental campaign, this paper outlines the proposed experimental setup and loading sequence for transitioning towards multidirectional loading conditions.

Multidirectional load multipliers: application for shared anchors for floating wind turbinesMultidirectional load multipliers The load multipliers presented in this dataset are based on the multiline anchor loads calculated for a spar floating wind turbine presented by: Balakrishnan, K., Arwade, S.R., DeGroot, D.J., Fontana, C., Landon, M., Aubeny, C.P., 2020. Comparison of multiline anchors for offshore wind turbines with spar and with semisubmersible. Journal of Physics: Conference Series, 1452, 012032. doi:10.1088/1742-6596/1452/1/012032. Files Load multipliers for three load cases grouped in Wind Wave and Current directions. Those are the loads arriving at a multiline anchor. DLC 0WWC: Wind Wave and Current at zero degrees DLC_0deg_push.txt DLC_0deg_push2.txt DLC_0deg_push3.txt DLC_0deg_step.txt DLC_0deg_step2.txt DLC_0deg_step3.txt DLC 30WWC: Wind Wave and Current at zero degrees DLC_30deg_push.txt DLC_30deg_push2.txt DLC_30deg_push3.txt DLC_30deg_step.txt DLC_30deg_step2.txt DLC_30deg_step3.txt DLC 60WWC: Wind Wave and Current at zero degrees DLC_60deg_push.txt DLC_60deg_push2.txt DLC_60deg_push3.txt DLC_60deg_step.txt DLC_60deg_step2.txt DLC_60deg_step3.txt

MOBILE PHOTOGRAMMETRY FOR 3D RECONSTRUCTION OF CENTRIFUGE EXPERIMENTS IN GEOTECHNICAL ENGINEERINGPhotogrammetry is a technique employed for the reconstruction of 3D models from a set of photos. This methodology is gaining popularity in engineering applications, including geotechnical studies. This research investigates the feasibility of utilizing smartphone cameras to gather input data for reconstructing 3D models of centrifuge experiments. The workflow involves capturing images of the subject, aligning the images, scaling, and mesh generation. We propose a photogrammetry workflow, exemplified by two 3D models of centrifuge experiments conducted at the Geotechnical Centrifuge of the Université Gustave Eiffel. These models encompass settlement analysis of shallow foundations and deformation assessment of a suction anchor under lateral load. Photo processing employs Reality Capture software, revealing good agreement between measured settlements and ground deformations in the selected centrifuge tests.

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