Rizal Hidayat, Fadillah (2019) Analisis Kelelahan Pada XMA Platform Dengan Metode Fracture Mechanics Untuk Perencanaan RBI (Risk Based Inspection). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
04311540000142-Undergraduate_Theses.pdf Download (3MB) | Preview |
Abstract
XMA Platform milik Pertamina EP adalah anjungan yang telah beroperasi di laut utara Jawa Barat selama lebih dari 20 tahun dan direncanakan untuk diperpanjang selama 20 tahun kedepan. Prediksi umur kelelahan digunakan untuk mempertimbangkan kelayakan dari struktur yang akan digunakan lagi setelah adanya modifikasi atau rencana perpanjangan umur operasi. Dalam tugas akhir ini, analisis sisa umur platform dilakukan dengan pendekatan fracture mechanics untuk menentukan interval inspeksi dari resiko kegagalan dalam perencanaan Risk Based Inspection pada XMA Platform. Probability of Failure dapat ditentukan dengan metode Monte-Carlo untuk moda kegagalan akibat kelelahan pada join kritis platform. Melalui perhitungan umur kelelahan didapatkan bahwa XMA Platform dapat diperpanjang masa operasinya untuk 20 tahun kedepan. Umur platform diprediksi mencapai 52,9 tahun sejak inspeksi terakhir. Nilai PoF didapatkan 9,24 x 10-4/year dan interval inspeksi 2 tahun sekali menggunakan metode inspeksi magnetic particle test.
========================================================================================================================
XMA Platform owned by Pertamina EP is a platform that has been operated in the Northern Sea of West Java for more than 20 years. The platform is planned to be extended for the next 20 years. Fatigue life prediction was used to consider the feasibility of the structure to be planned for the extension of the operating life. In this final project, the analysis of the remaining platform life was done using the fracture mechanics approach to determine the inspection interval from the risk of failure on XMA Platform with Risk Based Inspection plan. The probability of failure was obtained by the monte-carlo method for failure modes due to fatigue life on the critical join platform. Through calculation of fatigue life, it was found that XMA Plarform can be extended for the next 20 years. The age of the platform is predicted to reach 52,9 years since the last inspection. PoF value was obtained 9,24 x 10-4 / year and inspection intervals each 2 years using magnetic particle test inspection methods.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Risk Based Inspection, Fatigue, Fracture Mechanics, Risiko. |
| 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 T Technology > TN Mining engineering. Metallurgy > TN871.3 Offshore well drilling |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mr Rizal Hidayat Fadillah |
| Date Deposited: | 21 Dec 2022 05:56 |
| Last Modified: | 21 Dec 2022 05:56 |
| URI: | http://repository.its.ac.id/id/eprint/68616 |
Actions (login required)
 |
View Item |