Studi Eksperimen Tegangan Mooring Pada Floating Breakwater Bergerigi Tipe-1 Dengan Variasi Slope Dan Porositas

Nuurindra, Faturrahiim (2021) Studi Eksperimen Tegangan Mooring Pada Floating Breakwater Bergerigi Tipe-1 Dengan Variasi Slope Dan Porositas. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Floating breakwater hadir sebagai alternatif dari sistem fixed breakwater dimana floating breakwater memiliki keunggulan yaitu dapat digunakan di daerah dengan kondisi pondasi yang buruk, serta dapat digunakan di daerah dengan kedalaman air yang relatif dalam. Salah satu aspek fundamental dalam desain floating breakwater adalah sistem mooring, karena digunakan untuk menjaga floating breakwater tetap pada posisinya dan mempengaruhi transmisinya. Pada penelitian Tugas Akhir ini, akan dilakukan studi eksperimen untuk mendapatkan nilai tegangan mooring pada floating breakwater bergerigi tipe-1, dan floating breakwater tipe ponton sebagai pembanding. Pengujian fisik dilakukan di dalam wave flume dengan variasi tinggi gelombang (H), periode gelombang (T), sudut slope (°), dan porositas (%). Hasil penelitian ini didapatkan nilai tegangan mooring maksimum terbesar pada floating breakwater tipe ponton dan disusul oleh floating breakwater bergerigi tipe-1 dengan sudut slope 45° dan porositas 0% dengan nilai tegangan berturut – turut yaitu 20.83 kN/m² dan 16.96 kN/m². Sedangkan tegangan mooring minimum terjadi pada floating breakwater bergerigi tipe-1 dengan porositas 5% pada sudut 45° dan porositas 0% dengan nilai tegangan berturut – turut yaitu 12.04 kN/m² dan 13.31 kN/m². Perbandingan nilai tegangan mooring yang terjadi antara floating breakwater bergerigi tipe-1 adalah lebih kecil 17.50% - 41.41% daripada floating breakwater tipe ponton. ====================================================================================================== Floating breakwater present as an alternative to the fixed breakwater system where the floating breakwater has the advantage that it can be used in areas with poor foundation conditions, and can be used in areas with relatively deep water depths. One of the fundamental aspects in the design of a floating breakwater is the mooring system, as it is used to keep the floating breakwater in position and affect its transmission. In this Final Project research, an experimental study will be carried out to obtain the value of mooring stress in type-1 serrated floating breakwater and pontoon type floating breakwater as a comparison. Physical testing is carried out in a wave flume with variations in wave height (H), wave period (T), slope angle (°), and porosity (%). The result of this research found the largest maximum mooring tension value on the ponton type floating breakwater and serrated type at the 45° slope and 0% porosities consecutive is 20.83 kN/m² and 16.96 kN/m², while the smallest maximum mooring tension occurred at the 45° slope and 5% porosities consecutive is 12.04 kN/m² and 13.31 kN/m². Meanwhile, the comparison of the value of the mooring tension that occurs between the serrated type floating breakwater is 17.50% - 41.41% lower than the ponton type floating breakwater.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Floating breakwater, slope bergerigi tipe-1, studi eksperimen, tegangan tali tambat, tipe ponton, Floating breakwater, experimental study, mooring tension, pontoon type, serrated slope type-1.
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering > TC203.5 Coastal engineering
Divisions: Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User: Faturrahiim Nuurindra
Date Deposited: 25 Feb 2021 22:45
Last Modified: 25 Feb 2021 22:45
URI: https://repository.its.ac.id/id/eprint/82858

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