Vol.25, No.2, 2025, pp. 193–202
https://doi.org/10.69644/ivk-2025-02-0193

MOORING STRESS ANALYSIS OF OC3-HYWIND FLOATING PLATFORM WITH VARIATION ANCHOR PLACEMENT

Alfido Marchandi Faizatama1,2, Nurman Firdaus3 , Ristiyanto Adiputra3** , Aditya Rio Prabowo1* , Buruhan Haji Shame4 , Martin Jurkovič5 , Andan Sigit Purwoko3 , Amar Makruf Tinulad Fil Ardli6

1) Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, INDONESIA

A.R. Prabowo https://orcid.org/0000-0001-5217-5943 , *email: aditya@ft.uns.ac.id

2) Laboratory of Design and Computational Mechanics, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, INDONESIA

3) Research Center for Hydrodynamic Technology, National Research and Innovation Agency, Surabaya, INDONESIA

N. Firdaus https://orcid.org/0009-0005-3758-0162 ; R. Adiputra https://orcid.org/0000-0003-3630-9432 ;

A.S. Purwoko https://orcid.org/0009-0004-8276-5791 , **email: ristiyanto.adiputra@brin.go.id

4) The Ministry of Infrastructure, Communication and Transportation, Zanzibar, TANZANIA

B.H. Shame https://orcid.org/0009-0001-8554-8766

5) Faculty of Operation and Economics of Transport and Communication, University of Zilina, Zilina, SLOVAKIA

M. Jurkovič https://orcid.org/0000-0001-7673-1350

6) Research Center for Energy Conversion and Conservation, National Research and Innovation Agency (BRIN), South Tangerang, INDONESIA

A.M.T. Fil Ardli https://orcid.org/0009-0007-9616-7954

 

Abstract

This study aims to analyse the mooring stresses on the OC3-HYWIND floating platform with variations in anchor placement. The stress distribution within the mooring system is influenced by several factors, including wind direction, the presence of sea waves, and the anchor’s positioning. A series of modifications is implemented in the mooring system design to enhance the effectiveness of mooring utilisation. A numerical modelling approach, utilising ANSYS® AQWA software, is employed to analyse mooring stresses. Three mooring system variations are conducted based on previous research comparing conventional mooring systems with innovative ones. The hypothesis is that the mooring variations would mitigate external influences on the mooring lines and reduce the overall stress on the system.

Keywords: • FOWT • spar • boundary element method • mooring system

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