Analisis Keandalan Sling Setelah Pemakaian Periode Lama.

Abimanyu, Fachrizar (2022) Analisis Keandalan Sling Setelah Pemakaian Periode Lama. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Seiring dengan berkembangnya teknologi, pengeboran minyak bumi tidak hanya dilakukan di darat namun juga di lepas pantai. Pengeboran lepas pantai membutuhkan teknologi yang baru dan berbagai jenis macam jenis anjungan lepas pantai. Salah satu jenis anjungan lepas pantai yang sering digunakan adalah Jacket platform. Jacket platforms adalah sebuah struktur yang dibangun di perairan dangkal dan secara fisik dapat dipasang ke dasar laut. Proses pembangunan bangunan lepas pantai disebut fabrikasi. Salah satu proses fabrikasi adalah proses lifting. Pada proses lifting seringkali terdapat kegagalan dalam suatu struktur. Pada penelitian ini dilakukan analisis keandalan terhadap salah satu komponen dari lifting yaitu sling. Langkah awal yang dilakukan adalah permodelan struktur. Hasil dari permodelan struktur didapatkan konfigurasi rigging yaitu menggunakan 4 crane dan 16 sling. Kemudian Pengecekan unity member nilai terbesar berada di angka 0,93 dimana masih aman karena kurang dari 1. Sedangkan untuk adanya deflection check juga masih dalam batas aman, dimana pada perhitungan memiliki nilai defleksi yang lebih rendah dari batasnya. Lalu dilakukan analisis simulasi monte carlo dan probability of failure pada crane 1 sebesar 0%. Kemudian didapatkan juga peluang suksesnya sebesar 1000 %. Untuk crane 2 probability of failure sebesar 0 % dan peluang suksesnya sebesar 100 %, Untuk crane 3 probability of failure sebesar 0 % dan peluang suksesnya sebesar 100 %, Untuk crane 4 probability of failure sebesar 0 % dan peluang suksesnya sebesar 100 %. Kemudian ditentukan keandalan sistem menggunakan sistem seri dan didapatkan nilai keandalan sistem sebesar 1.
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Along with the development of technology, oil drilling is not only done on land but also offshore. Offshore drilling requires new technology and various types of offshore platforms. One type of offshore platform that is often used is the Jacket platform. Jacket platforms are structures that are built in shallow water and can be physically attached to the seabed. The process of constructing offshore buildings is called fabrication. One of the fabrication processes is the lifting process. In the lifting process, there are often failures in a structure. In this study, a reliability analysis was carried out on one of the components of the lifting, namely the sling. The first step is the structural modeling. The results of the structural modeling obtained a rigging configuration using 4 cranes and 16 slings. Then the unity member check has the largest value at 0.93 which is still safe because it is less than 1. Meanwhile, the deflection check is also still within the safe limit, which in the calculation has a deflection value that is lower than the limit. Then do the analysis of the monte carlo simulation and the probability of failure on crane 1 is 0%. Then also obtained an 100% chance of success. For crane 2 the probability of failure is 0 % and the probability of success is 100 %, for crane 3 the probability of failure is 0% and the probability of success is 100 %, for crane 4 the probability of failure is 0% and the probability of success is 100%. Then the reliability of the system is determined using a series system and the system reliability value is 1.

Item Type:	Thesis (Other)
Additional Information:	RSKe 627.98 Abi a-1 2022
Uncontrolled Keywords:	Sling, Permodelan Strukur, Simulasi Monte carlo , Probabilitas Kegagalan. Sling, Structure Modeling, Monte carlo Simulation , Probability of Failure.
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials.
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	22 May 2026 06:30
Last Modified:	22 May 2026 06:30
URI:	http://repository.its.ac.id/id/eprint/133345

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