Analisis On-Bottom Stability Kabel Bawah Laut (Umbilical) Berdasarkan DNV RP F 109

Bahanan, Ridwan Abdullah (2016) Analisis On-Bottom Stability Kabel Bawah Laut (Umbilical) Berdasarkan DNV RP F 109. Undergraduate thesis, Institut Technology Sepuluh Nopember.

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Abstract

Stabilitas dalam kabel bawah laut atau Umbilical sangat diperlukan dalam dunia energi. Jika pada Umbilical ini tidak mengalami kestabilan pada saat operasi pengiriman energi, maka dampak buruk dapat terjadi pada lingkungan sekitar. Salah satunya jika Umblical tidak mengalami ketidakstabilan maka bisa saja kabel tersebut mengalami crack. Fenomena ini disebabkan oleh beban lingkungan terutama gelombang dan arus laut. Pada tugas akhir ini, analisis On-Bottom Stability Kabel Bawah Laut (umbilical) Berdasarkan DNV (Det Norske Veritas ) yang dilakukan terdiri analisis stabilitas, yaitu analisis Stabilitas Lateral dan analisis Stabilitas Vertikal. Berdasarkan analisis stabilitas, Kabel Bawah Laut (Umbilical) pada lokasi ini dikatakan stabil apabila nilai nya kurang dari atau sama dengan 1. Baik nilai Stabilitas Lateral maupun Stabilitas Vertikal nilainya harus kurang dari atau sama dengan 1. Berdasarkan hasil perhitungan On-Bottom Stability DNV RP F 109, yaitu tentang pembahasan masalah Stabilitas Lateral ataupun Stabilitas Vertikal didapatkan nilai dari Stabilitas Vertikal sebesar 0,17 dan nilai dari Stabilitas Lateral sebesar 0,2401 dimana nilai ini memenuhi untuk aturan DNV RP F 109 yaitu tentang Stabilitas. Kemudian di sini dilakukan perbandingan nilai Stabilitas Lateral dengan menggunakan Software ANSYS CFD kemudian di dapatkan nilainya yaitu sebesar 0,239. Dimana , didapatkan error dengan perhitungan manual sebesar 0,458. ===================================================================================================== Stability in the submarine cable or umbilical indispensable in the world of energy. If at this Umbilical did not experience stability at the time of energy delivery operations, the adverse effects can occur in the environment. One is if Umbilical did not experience instability it could have the cable run into crack. This phenomenon is caused by environmental loads, especially wave and ocean currents. In this thesis, the analysis of On-Bottom Stability Underwater Cable (umbilical) by DNV (Det Norske Veritas) carried consisted stability analysis, the analysis Stability Lateral and Vertical Stability analysis. Based on the analysis of stability, Underwater Cable (umbilical) at this location is said to be stable if its value is less than or equal to 1. Eventough value Stability Lateral and Vertical Stability value must be less than or equal to 1. Based on the results of the calculation On-Bottom Stability DNV RP F 109, which is about the discussion of the problem or the Lateral Stability Stability Stability Vertical Vertical obtained values is 0.17 and the value of the Lateral Stability is 0.2401 where the value meets to rule DNV RP F 109 that is about stability. Then here the comparison value Lateral stability using ANSYS CFD Software then get the value that is equal to 0,239. Where, obtained by manual calculation error is 0,458

Item Type: Thesis (Undergraduate)
Additional Information: RSKe 621.867 2 Bah a
Uncontrolled Keywords: On-Bottom Stability, DNV RP F 109, Stabilitas Lateral, Stabilitas Vertikal , ANSYS CFD
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 25 Feb 2020 04:21
Last Modified: 25 Feb 2020 04:21
URI: http://repository.its.ac.id/id/eprint/75157

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