Analisis Tegangan Mooring pada Floating Breakwater Tipe Gergaji dengan Pemodelan Fisik

Hidayatullah, Aditya (2019) Analisis Tegangan Mooring pada Floating Breakwater Tipe Gergaji dengan Pemodelan Fisik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Floating breakwater merupakan solusi alternatif dari penggunaan fixed breakwater karena dapat digunakan secara lebih efektif di daerah pesisir dengan kondisi tertentu, lebih estetik, desain yang fleksibel untuk dikembangkan, dan instalasi yang lebih mudah. Salah satu aspek fundamental dalam desain floating breakwater adalah sistem mooring, karena digunakan untuk menjaga floating breakwater agar tetap pada posisinya dan mempengaruhi sistem kerja transmisinya. Penelitian ini bertujuan untuk mengetahui besarnya tegangan mooring maksimum yang terjadi pada tali mooring melalui pemodelan fisik. Penelitian dilakukan pada floating breakwater tipe gergaji, dan floating breakwater tipe pontoon sebagai pembanding. Model floating breakwater dibuat dari bahan polylactid acid sedangkan untuk model tali mooring digunakan tali jenis polyethylene. Pengujian fisik dilakukan di dalam wave flume dengan menggunakan gelombang irregular dengan variasi tinggi gelombang signifikan (Hs), periode gelombang (T), elevasi muka air (d), dan sudut mooring (α). Hasil penelitian ini didapatkan nilai tegangan mooring maksimum terbesar pada floating breakwater tipe gergaji dan tipe pontoon pada sudut mooring 30⁰ dan elevasi muka air 45 cm secara berturut turut yaitu 5,278 N dan 4,913 N, sedangkan tegangan maksimum terkecil terjadi pada sudut mooring 60⁰ dan elevasi muka air 41 cm secara berturut turut yaitu 1,030 N dan 1,273 N. Sedangkan, perbandingan nilai tegangan mooring yang terjadi antara floating breakwater tipe gergaji adalah lebih besar 10,82%-40,94% daripada floating breakwater tipe pontoon.
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Floating breakwater is an alternative solution from fixed breakwater, because it can be used more effectively in coastal areas with certain conditions, more aesthetics, flexible designs to be developed, and easier installation. One of the fundamental aspects in the design of a floating breakwater is the mooring system, because it is used to maintain the floating breakwater in its position and affect the transmission work system. This research aims to determine the magnitude of the maximum mooring tension that occurs on the mooring line through physical modeling. The research was conducted on a saw type floating breakwater, and a pontoon type floating breakwater as a comparison. The floating breakwater model is made from polylactid acid while for the mooring line model is used polyethylene. Physical testing is carried out in wave flume by using irregular waves with variations in significant wave height (Hs), wave period (T), water depth (d), and mooring angle (α). The results of this research found the largest maximum mooring tension values on the saw type floating breakwater and pontoon type at the mooring angle 300 and water depth 45 cm consecutive is 5.278 N and 4.913 N, while the smallest maximum mooring tension occurred at the mooring angle 60⁰ and water depth 41 cm consecutive is 1.030 N and 1.273 N. Meanwhile, the comparison of the value of the mooring tension that occurs between the saw type floating breakwater is 10,82%-40,94% greater than the pontoon type floating breakwater.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	elevasi muka air, floating breakwater, pemodelan fisik, sudut mooring, tegangan mooring
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC363 Floating harbors. Including floating docks, piers, etc
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Aditya Hidayatullah
Date Deposited:	04 Jun 2026 03:34
Last Modified:	04 Jun 2026 03:34
URI:	http://repository.its.ac.id/id/eprint/68637

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