Putera, Rafly Rama (2020) Kajian Teknis Perhitungan Bollard Pull Untuk Pemanduan Shuttle Tanker Pada FSO Tipe Spread Mooring System. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
FSO XX didesain dengan konfigurasi penambatan Spread Mooring System (SMS) untuk menggantikan FSO terdahulu yang mulanya memiliki konfigurasi penambatan Turret Mooring System. Secara teori, beban lingkungan yang diterima oleh shuttle tanker saat dilakukannya pemanduan pada proses crude oil transfer dari FSO XX akan lebih besar yang berdampak pada dibutuhkannya spesifikasi bollard pull kapal AHTS yang lebih besar. Hal itu dikarenakan pada konfigurasi penambatan Spread Mooring System tidak memungkinkan untuk FSO XX maupun shuttle tanker untuk bergerak menghadap arah datang cuaca untuk meminimalisir beban lingkungan yang diterima oleh shuttle tanker. Oleh karena itu, maka perhitungan beban lingkungan harus dilakukan kembali dengan mempertimbangkan konfigurasi penambatan Spread Mooring System. Perhitungan beban lingkungan yang diperhitungkan dalam penelitian ini mengikuti rekomendasi dari DNV-GL dengan memperimbangkan beban angin, gelombang, arus, dan inersia. Beban lingkungan transversal terbesar dalam batasan weather restricted operations didapatkan bernilai 262.96 MT menuju kutub positif. Sedangkan beban longitudinal terbesar didapatkan bernilai 105.44 MT menuju kutub negatif. Dengan mempertimbangkan safety factor, usia, efisiensi, dan konfigurasi penundaan dari kapal AHTS, maka didapatkan spesifikasi bollard pull kapal AHTS yang direkomendasikan dalam penelitian kali ini adalah 200 MT yang terletak pada stern dan 220 MT yang terletak pada port side atau starboard side dari shuttle tanker.
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FSO XX was designed with Spread Mooring System to substitute the former FSO whose mooring system was designed with Turret Mooring System. Theoritically, the environmental loads affecting the shuttle tanker when the crude oil transfer process from FSO XX undergo will have a bigger number and require a bigger bollard pull specification of the AHTS vessels to assist the shuttle tanker in place. It is because the weathervaning flexibility to adjust the heading direction of either FSO XX and shuttle tanker which found in Turret Mooring System is absent in Spread Mooring System. The calculation of environmental loads in this research is conducted using recommendation from DNV-GL and took accounts of wind, wave, current, and inertia loads. The biggest transversal environmental load is recorded by the magnitude of 262.96 MT towards positive vector. Whilst the biggest longitudinal environmental load is recorded by the magnitude of 105.44 MT towards negative vectors. By considering safety factor, age, efficiency, and towing configuration of the AHTS vessels, the recommended specification of the AHTS vessels in this research are 200 MT AHTS vessel in stern of the shuttle tanker and 220 MT AHTS vessel in port side or starboard side of the shuttle tanker.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | FSO, Bollard Pull, Kapal AHTS, Crude Oil Transfer, Penundaan. |
| Subjects: | V Naval Science > VK > VK361 Mooring of ships. Dry docks V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM464 Towboats. Tugboats |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Rafly Rama Putera |
| Date Deposited: | 23 Aug 2020 07:47 |
| Last Modified: | 10 Nov 2023 07:03 |
| URI: | http://repository.its.ac.id/id/eprint/80560 |
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