Studi Parameter Double Floating Breakwater untuk Peredam Energi Gelombang

Lestari, Lusi Nawang (2026) Studi Parameter Double Floating Breakwater untuk Peredam Energi Gelombang. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pantai termasuk kawasan yang rawan terkena bencana. Beberapa masalah yang sering dijumpai di area pantai antara lain abrasi, pergeseran garis pantai, dan perpindahan sedimen. Hal ini umumnya disebabkan oleh gelombang laut yang memiliki ketinggian dan periode beragam sehingga menghasilkan energi yang besar dan berpotensi merusak. Oleh karena itu, pengembangan infrastruktur perlindungan pantai menjadi suatu keharusan untuk meminimalkan potensi kerusakan. Floating breakwater merupakan struktur untuk meredam gelombang yang sering dimanfaatkan untuk menjaga area pesisir, dermaga kecil, dan pelabuhan wisata dari ombak. Struktur ini lebih cocok untuk daerah dengan kedalaman air yang cukup dalam, fluktuasi pasang surut signifikan, dan dasar laut yang kurang stabil. Pada penelitian ini, penulis akan membahas mengenai resnponse amplitude operator, tegangan mooring, koefisien transmisi, dan koefisien refleksi. Terdapat dua enam variasi floating breakwater, yaitu model pontoon, pontoon dengan slope, pontoon dengan slope porous dengan stiffener dan tanpa stiffener. Selain itu, terdapat variasi jarak antar floating breakwater, yaitu 150 cm, 200 cm, dan 250 cm. Hasil yang didapatkan adalah RAO yang paling dominan adalah gerak heave yang terjadi pada model pontoon tanpa slope dan model pontoon dengan slope. Tegangan mooring terendah terjadi pada konfigurasi 1 model 2.3. Koefisien transmisi terendah terjadi pada model 2.2 dan koefisien refleksi terendah terjadi pada model 2.3.
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Coastal areas are prone to natural disasters. Some of the problems commonly encountered in coastal areas include abrasion, shoreline displacement, and sediment transfer. These are generally caused by ocean waves of varying heights and periods, which generate enormous energy and have the potential to cause damage. Therefore, the development of coastal protection infrastructure is essential to minimize potential damage. Floating breakwaters are structures used to reduce waves, often utilized to protect coastal areas, small docks, and tourist ports from waves. These structures are more suitable for areas with sufficient water depth, significant tidal fluctuations, and unstable seabeds. In this study, the author will discuss the response amplitude operator, mooring tension, transmission coefficient, and reflection coefficient. There are six variations of floating breakwaters, namely the pontoon model, pontoon with slope, pontoon with porous slope with stiffener and without stiffener. In addition, there are variations in the distance between floating breakwaters, namely 150 cm, 200 cm, and 250 cm. The results obtained show that the most dominant RAO is heave motion, which occurs in pontoon models without slope and pontoon models with slope.. The lowest mooring tension occurs in configuration 1 model 2.3. The lowest transmission coefficient occurs in model 2.2, and the lowest reflection coefficient occurs in model 2.3.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	floating breakwater, hidrodinamika, mooring, floating breakwater, hydrodynamic, mooring
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Lusi Nawang Lestari
Date Deposited:	21 Jan 2026 01:03
Last Modified:	21 Jan 2026 01:03
URI:	http://repository.its.ac.id/id/eprint/129891

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