Khadijah, Syarifah Luthfiyah Ayu (2023) Studi Numerik Tegangan Mooring pada New Type Floating Breakwater Berpori. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 04311940000025-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
04311940000025-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2025. Download (5MB) | Request a copy |
Abstract
Floating breakwater merupakan floating structure yang telah digunakan sebagai salah satu upaya dalam menyelesaikan permasalahan yang ada akibat kegiatan disekitar pantai. Floating breakwater menjadi alternatif yang lebih menarik perhatian karena mobilitasnya, efektifitas biaya di perairan pantai yang dalam, dan mengurangi dampak terhadap lingkungan laut. Floating breakwater terdiri dari floater yang memiliki buoyancy untuk mendukung fasilitas yang berada di atas permukaan air. Floating breakwater tertambat menggunakan sistem tambat konvensional atau taut mooring lines saat beroperasi di laut lepas. Pada penelitian ini, dilakukan analisa numerik pada new type model floating breakwater dengan variasi yang dikembangkan yaitu berupa double slope berpori dengan konfigurasi tali tambat (taut) untuk mengetahui karakteristik gerakan new type floating breakwater dan maximum tension pada mooring lines yang terjadi dalam bentuk RAO gerak dan RAO tension. Analisis ini dilakukan dengan membuat pemodelan new type floating breakwater berdasarkan data percobaan floating breakwater yang telah dilakukan sebelumnya menggunakan software solidwork dan Ansys Aqwa. Data percobaan berupa data dimensi model dan data tegangan maksimum floating breakwater berpori. Dari hasil penelitian didapatkan bahwa Hasil RAO didapatkan bahwa gerakan yang dominan yaitu heave, surge dan pitch. Berdasarkan hasil pengujian numerik semakin besar tingkat porositas maka semakin kecil tegangan maksimum yang dihasilkan. Variasi porositas 5% dan 10% didapatkan tegangan maksimum terbesar yaitu 83.12 N dan 76.14 N pada slope 45° kemudian 82,46 N dan 82,95 N pada slope 60°.
=====================================================================================================================================
Floating breakwater is a floating structure that has been used as one of the efforts in solving existing problems due to activities around the coast. Floating breakwater is becoming a more attractive alternative due to its mobility, cost effectiveness in deep coastal waters, and reduced impact on the marine environment. Floating breakwater consists of a floater that provides buoyancy to support the facility above the water surface. Floating breakwaters are moored using conventional mooring systems or taut mooringlines when operating on the high seas. In this
research, a numerical analysis is carried out on a new type floating breakwater model with a developed variation in the form of a porous double slope with a taut mooringline configuration to determine the motion characteristics of the new type of floating breakwater and the maximum tension on the mooringlines that occur in the form of motion RAO and tension RAO. This analysis is carried out by modeling a new type of floating breakwater based on floating breakwater experimental data that has been carried out previously using solidwork and ANSYS AQWA software. From the results of the study it was found that the RAO results obtained that the dominant movements are heave, surge and pitch. Based on the results of numerical testing, the greater the porosity level, the smaller the maximum stress produced. The porosity variations of 5% and 10% obtained the largest maximum stresses of 83.12 N and 76.14 N at 45° then 82.46 N and 82.95 N at 60°.
Actions (login required)
 |
View Item |