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Publications
Uzunoglu, E., Hmedi, M., Wang, S. and Guedes Soares, C. (2025), Design and application of a gravity anchor for self-installing tension leg platform with free-float capabilities, Ocean Engineering, Vol. 341, 122675.
This paper presents the design principles and dynamic behavior of a tension leg platform specifically developed for wet towing and installation utilizing a gravity anchor. The application of the gravity anchor ensures the platform achieves sufficient stability and favorable motion dynamics, both during anchored operation and while unanchored, enabling convenient towing for repairs or decommissioning at the end of its service life. The aim is to consider the platform from a broader perspective, including several cases within the life cycle, including installation, possible repairs, and end-of-life removal. The work outlines the design concerns in achieving the goals at each stage, describing the primary performance indicators and the reasoning behind the choices. It provides an overview of the requirements from each stage, the design process, and the sensitivity of the hull form the design variables. The platform is systematically evaluated in frequency and time domains. The frequency domain section covers the transport and decommissioning phases with and without the anchor. The time domain section evaluates the platform’s responses to its designed installation area in Ribadeo, Spain. As the unit’s free-float dynamics do not depend on the anchor, the design may become advantageous during several life cycle phases, specifically during the installation and decommissioning.
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