Ramzi, Ramzi (2019) Analisis Respon Dinamis Floating Offshore Wind Turbine Tipe SPAR dengan Variasi Sudut Mooring Line. Other thesis, Institute Technology of Sepuluh Nopember.
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Abstract
Tugas akhir ini akan membahas tentang respon dinamis Floating Offshore Wind Turbine (FOWT) tipe Spar dengan dua kondisi variasi sudut tali tambat untuk menemukan sudut tali tambat teroptimum. Tugas akhir ini menggunakan FAST v8 dengan kemampuan menghitung respon dinamis struktur secara coupled aero-hydro-servo-elasto. Nilai spektra respon, gaya tarik tali tambat maksimum, dan Root Mean Square (RMS) akan menjadi acuan bagaimana pengaruh pembebanan beserta arah terhadap respon dinamis struktur. Hasil penelitian menunjukkan pada Mooring Configuration 2 (MC2), MC2A merupakan variasi dengan karakteristik gerak terbaik untuk 6 mode gerakan diikuti oleh MC2B, MC2C, MC2D, dan MC2E. Sementara untuk Mooring Cofiguration 3 (MC3), karakteristik gerak terbaik diperoleh variasi MC3A dan diikuti oleh MC3C, MC3D, MC3B, dan MC3E. Gaya tarik tali tambat maksimum MC2 terjadi ketika beban 100 tahunan dari arah 45° mengenai mooring line 1 variasi MC2D dengan maximum tension 20290 kN. Untuk MC3, nilai maximum tension terbesar variasi MC3D bernilai 23810 kN ketika terkena beban 100 tahunan dari arah 90°. Seluruh variasi MC2 dan MC3 memiliki kriteria “Survival” untuk nilai amplitude RMS mode gerak pitch. Hanya variasi MC2A, MC2B, MC2D, dan MC3E yang memenuhi safety criteria DNV OS-E301 untuk kondisi pembebanan 1 tahun (operasi). Sementara pada kondisi beban 100 tahunan (ekstrim) seluruh variasi MC2 dan MC3 tidak memenuhi safety criteria maksimum 70% MBL yang disyaratkan oleh DNV OS-E301.===============================================================================================================================This final project will discuss the dynamic response of the SPAR-type Floating Offshore Wind Turbine (FOWT) with two conditions of variations in the mooring angle to find the optimum mooring angle. This final project uses FAST v8 with the ability to calculate dynamic response structures in aero-hydro-servo-elasto coupled. The value of response spectra, maximum tensile strength, and Root Mean Square (RMS) will be a reference for how the load affects the direction of the dynamic response structure. The results of the study show that at Mooring Configuration 2 (MC2), MC2A is a variation with the best characteristics of motion for 6 degrees of freedom (DOF) mode followed by MC2B, MC2C, MC2D, and MC2E. While for Mooring Configuration 3 (MC3), the best characteristics of the motion were MC3A variations and followed by MC3C, MC3D, MC3B, and MC3E. The maximum tensile strength of MC2 occurs when MC2D get 100 years return period load from direction 45° regarding the mooring line 1 with a maximum tension of 20290 kN. For MC3, the maximum tension value of MC3D variation is 23810 kN when it is exposed to 100 year return period loads from direction 90°. All variations of MC2 and MC3 have “Survival” criteria for the amplitude RMS value of pitch motion mode. Only variations of MC2A, MC2B, MC2D, and MC3E that meet DNV OS-E301 safety criteria for 1-year return period conditions (operation). While at 100-year return period conditions (extreme) all variations of MC2 and MC3 do not meet the maximum safety criteria of 70% MBL required by DNV OS-E301.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Floating Offshore Wind Turbine, maximum tension, spectral density, mooring configuration. |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy or power |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | - Ramzi |
| Date Deposited: | 26 May 2026 04:23 |
| Last Modified: | 26 May 2026 04:23 |
| URI: | http://repository.its.ac.id/id/eprint/68860 |
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