Analisis Pengaruh Konfigurasi Flettner Rotor terhadap Stabilitas Kapal Berbasis Karakteristik Angin di Perairan Indonesia

Salsabilah, Afifah (2026) Analisis Pengaruh Konfigurasi Flettner Rotor terhadap Stabilitas Kapal Berbasis Karakteristik Angin di Perairan Indonesia. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Transisi industri pelayaran menuju penurunan konsumsi bahan bakar dan emisi mendorong adopsi wind-assisted propulsion systems (WAPS), salah satunya Flettner Rotor. Namun, instalasi rotor tidak hanya memengaruhi efisiensi energi, tetapi juga memicu risiko keselamatan terhadap stabilitas utuh (intact stability) kapal melalui dua faktor utama: lonjakan titik berat vertikal (VCG) akibat penambahan massa struktur, serta munculnya momen guling melintang (heeling moment) akibat gaya aerodinamis. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan jumlah unit (1 hingga 3 unit) dan variasi letak penempatan rotor terhadap stabilitas kapal Offshore Support Vessel (OSV). Simulasi dilakukan menggunakan perangkat lunak hidrostatik dengan mengintegrasikan momen aerodinamis dari angin Monsun ekstrem di Indonesia pada berbagai variasi sudut serang (0°, 45°, 90°, 135°, dan 180°). Hasil komputasi dievaluasi terhadap standar keselamatan IMO Intact Stability Code 2008 dan kriteria Severe Wind and Rolling (ABS). Hasil penelitian menunjukkan bahwa penambahan jumlah rotor secara linier menurunkan stabilitas kapal; nilai GM awal menyusut dari 2,683 m pada kondisi eksisting menjadi 2,013 m pada konfigurasi 3 unit. Meskipun seluruh konfigurasi terbukti lulus (PASS) kriteria keselamatan dengan asumsi kondisi geladak muatan kosong, konfigurasi multi-rotor menggerus sisa energi stabilitas dinamis secara signifikan dan memicu perendaman geladak hingga 15,40% pada hantaman angin lateral. Dari evaluasi penempatan, posisi sentral (midship) teridentifikasi sebagai konfigurasi paling optimal karena menyelaraskan distribusi massa dengan titik apung memanjang (LCB), sehingga mereduksi anomali momen trim ekstrem. Dengan demikian, konfigurasi 1 unit Flettner Rotor di area midship (Skenario V-01) ditetapkan sebagai rancangan paling ideal dan efisien untuk operasional OSV, karena mampu menyeimbangkan stabilitas dinamis dengan periode oleng di angka 6,32 detik, dengan rekomendasi mitigasi berupa penerapan weather routing pelayaran.
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The shipping industry's transition toward reducing fuel consumption and emissions is driving the adoption of wind-assisted propulsion systems (WAPS), including the Flettner Rotor. However, rotor installation influences not only energy efficiency but also introduces critical safety risks to the ship's intact stability through two primary mechanisms: the surge in the vertical center of gravity (VCG) due to structural mass addition, and the generation of a transverse heeling moment caused by aerodynamic forces. This study aims to investigate the effects of escalating the number of units (1 to 3 units) and varying the placement of the rotors on the stability parameters of an Offshore Support Vessel (OSV). The simulation was conducted using hydrostatic software by integrating the aerodynamic moments derived from extreme Monsoon winds in Indonesia across various angles of attack (0°, 45°, 90°, 135°, and 180°). The computational outcomes were evaluated against the IMO Intact Stability Code 2008 safety standards and Severe Wind and Rolling (ABS) criteria. The results indicate that increasing the number of rotors linearly degrades ship stability; the initial GM value decreased from 2.683 m in the existing condition to 2.013 m in the 3-unit configuration. Although all configurations computationally passed the safety criteria assuming an empty cargo deck condition, multi-rotor configurations significantly depleted the dynamic stability energy reserve and triggered deck edge immersion up to 15.40% under lateral wind strikes. Regarding placement, the midship position was identified as the most optimal configuration because it aligns mass distribution with the longitudinal center of buoyancy (LCB), thereby mitigating extreme trim anomalies. Consequently, the configuration of 1 Flettner Rotor unit at the midship area (Scenario V-01) is determined as the most ideal and efficient design for OSV operations, because it is able to balance dynamic stability with a roll period of 6,325seconds, accompanied by mitigation recommendations such as the implementation of voyage weather routing.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Flettner Rotor, stabilitas utuh kapal, kurva GZ, momen heeling aerodinamis, angin monsun Indonesia, Flettner Rotor, ship intact stability, GZ curve, aerodynamic heeling moment, Indonesian monsoon winds
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM761 Stability of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Afifah Salsabilah
Date Deposited:	04 Aug 2026 01:47
Last Modified:	04 Aug 2026 01:47
URI:	http://repository.its.ac.id/id/eprint/142604

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