Stochastic Modeling of Forces on Jacket-Type Offshore Structures Colonized by Marine Growth

Type Article
Date 2019-05
Language English
Author(s) Ameryoun HamedORCID1, Schoefs Franck2, Barille LaurentORCID3, Thomas Yoann4
Affiliation(s) 1 : Univ Nantes, IXEAD CAPACITES Soc, F-44322 Nantes, France.
2 : Univ Nantes, IUML FR CNRS 3473, Res Inst Civil Engn & Mech GeM, UMR CNRS 6183,Sea & Littoral Res Inst, F-44322 Nantes, France.
3 : Univ Nantes, Sea & Littoral Res Inst, Mer Mol Sante MMS EA 2160, IUML FR CNRS 3473, F-44322 Nantes, France.
4 : IRD LEMAR IUEM, Rue Dumt Urville, F-29280 Plouzane, France.
Source Journal Of Marine Science And Engineering (2077-1312)) (Mdpi), 2019-05 , Vol. 7 , N. 5 , P. 158 (28p.)
DOI 10.3390/jmse7050158
WOS© Times Cited 19
Note This article belongs to the Special Issue Marine Structures
Keyword(s) marine growth, biofouling, wave loading, stochastic modeling, reliability, jacket structures

The present paper deals with the stochastic modeling of bio-colonization for the computation of stochastic hydrodynamic loading on jacket-type offshore structures. It relies on a multidisciplinary study gathering biological and physical research fields that accounts for uncertainties at all the levels. Indeed, bio-colonization of offshore structures is a complex phenomenon with two major but distinct domains: (i) marine biology, whose processes are modeled with biomathematics methods, and (ii) hydrodynamic processes. This paper aims to connect these two domains. It proposes a stochastic model for the marine organism's growth and then continues with transfers for the assessment of drag coefficient and forces probability density functions that account for marine growth evolution. A case study relies on the characteristics (growth and shape) of the blue mussel (Mytilus edulis) in the northeastern Atlantic.

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