Rido, Mohammad Ali (2022) Risk Analysis Keramba Jaring Apung Lepas Pantai "Ocean Farm" ITS (OFITS) Berbasis Fatigue Analysis Dengan Metode Fracture Mechanics. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 04311740000079-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
04311740000079-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2024. Download (6MB) | Request a copy |
Abstract
Keramba jaring apung lepas pantai merupakan salah satu solusi yang dapat digunakan untuk mengembangkan perikanan di Indonesia. Keramba jaring apung lepas pantai merupakan salah satu struktur yang dibangun dan di install di lepas pantai. Dengan demikian struktur tersebut memungkinkan terjadinya kegagalan berupa fatigue karena terdapat beban yang mengenai keramba jaring apung secara terus menerus. Oleh karena itu diperlukan perencanaan mengenai umur kelelahan dari struktur keramba jaring apung dan juga analisa tingkat resiko yang terjadi pada struktur tersebut. Dalam penelitian ini dibahas mengenai analisis umur kelelahan dan analisis tingkat resiko pada struktur keramba jaring apung lepas pantai Ocean Farm ITS (OFITS). Analisa umur kelelahan menggunakan metode fracture mechanics dan Analisis tingkat resiko berdasarkan DNV RP G-101. Member yang dilakukan pengujian yaitu member yang berada pada titik kritis yaitu joint 1706 dan
didapatkan nilai fatigue life nya selama 63,10 Tahun. Selanjutnya analisis tingkat resiko dilakukan dengan melakukan perhitungan terhadap probability of failure (PoF) dengan menggunakan simulasi monte carlo dan diapatkan nilai PoF per tahun nya sebesar 0,030. Analisis tingkat resiko dapat dilakukan setelah mendapatkan nilai PoF dan konsekuensi kegagalan berdasaekan DNV RP G-101 dan didapatkan tingkat resiko untuk bidangkeselamatan, muatan, dan lingkungan adalah rendah, sedangkan terhadap bidang produksi dan biaya adalah sedang.
================================================================================================
Offshore floating cage is one of the solutions that can be used to develop fisheries in Indonesia. An offshore floating cage is one of the structures built and installed offshore. It enables the structure to undergo fatigue failure due to the continuous load contained in the floating cage. Therefore, it is necessary to investigate the fatigue life of the floating cage structure and also analyze the level of risk that occurs in the structure. In this study, the
analysis of fatigue life and risk level analysis on the structure of the offshore floating cages Ocean Farm ITS (OFITS) is examined. Fatigue life analysis is calculated using the mechanical fracture method and risk level analysis is served based on DNV RP G-101. The members who are tested are members who are at a critical point, namely joint 1706 which obtain a fatigue life value of 63.10 years. Hence the risk level analysis is carried out by calculating the probability of failure (PoF) using the Monte Carlo simulation and the PoF value per year obtained is 0.030. Analysis of the level of risk can be commended after getting
the PoF value and the consequences of failure based on DNV RP G-101 and getting the risk level for safety, containment, and the environment are low, while the production sector and
costs are on medium level.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fatigue Life, Fracture Mechanics, keramba jaring Apung, Resiko, Simulasi Monte Carlo, Floating Cage, Monte Carlo Simulation, Risk |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mohammad Ali Rido |
| Date Deposited: | 02 Feb 2022 07:08 |
| Last Modified: | 02 Nov 2022 01:13 |
| URI: | http://repository.its.ac.id/id/eprint/92653 |
Actions (login required)
 |
View Item |