INFLUENCE OF SCOUR ON SUBSEA CABLES AND BEND RESTRICTORS OF OFFSHORE WIND FARM

Tao Wei; Liu Mingjiang; Zhou Guodong; Qiu Xu

doi:10.19912/j.0254-0096.tynxb.2021-0534

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (11) : 186-193. DOI: 10.19912/j.0254-0096.tynxb.2021-0534

INFLUENCE OF SCOUR ON SUBSEA CABLES AND BEND RESTRICTORS OF OFFSHORE WIND FARM

Tao Wei^1,2, Liu Mingjiang¹, Zhou Guodong², Qiu Xu¹

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Abstract

This paper qualitatively analyzes the effects of the changes on the system configuration due to the seabed scour. A numerical analysis model is established with Orcaflex, for quantitatively study and obtaining the change rules of the structural responses of a subsea cable and bend restrictor system, along with the development of seabed scour. Furthermore, the applicability to seabed scour for different configurations of cable and bend restrictor system, is explored by changing some key configuration parameters, including the redundancy length of subseacable, the angle of J-tube lower end, and the relative elevation of the bell-mouth to seabed. It is proved that the above parameters have significant impacts on the applicability to the seabed scour for subsea cable and bend restrictor systems. This paper can be used as a reference for the engineering design, operation and maintenance of subsea cables of wind farms.

Key words

offshore wind farms / subsea engineering / dynamic analysis / bending moments / subsea cable protection

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Tao Wei, Liu Mingjiang, Zhou Guodong, Qiu Xu. INFLUENCE OF SCOUR ON SUBSEA CABLES AND BEND RESTRICTORS OF OFFSHORE WIND FARM[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 186-193 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0534

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