Akhmad, Firman Norma (2014) Perencanaan Lifting Operation System (Hydraulic System--Spudcan Jetting System- Leg Mechanism) Pada Liftboat Dengan Studi Kasus (L/B Cameron Class 200. Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 4212105002_Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
4212105002_Undergraduate_Thesis.pdf Download (5MB) |
Abstract
Liftboat adalah kapal yang digunakan untuk layanan offshore, memiliki kemampuan mengangkat badan kapal, dan memiliki sistem propulsi, dilengkapi dengan crane untuk mendukung aktivitas offshore. Proses pengangkatan badan kapal membutuhkan suatu mekanisme. Sistem yang perlu disediakan diantaranya spudcan jetting system untuk memfasilitasi pengangkatan spudcan dari dasar laut. Sistem lain adalah sistem mekanis pada leg sehingga memungkinkan sistem hidrolik jack�up bekerja. Sistem hidrolik jack-up digunakan untuk mengangkat atau menurunkan leg atau badan kapal. Untuk mendesain sistem ini permasalahan diidentifikasi terlebih dahulu, dengan mencari literature yang relevan maka parameter ditentukan. Sistem hidrolik jack-up di rancang pada dua tekanan, yaitu 200 bar untuk mengangkat badan kapal (88.75% motor disp @200 rpm, 89.79% pump disp @750 rpm) dan 100 bar untuk mengangkat leg (28.79% motor disp @ 300rpm, 29.27% pump disp @1200 rpm). Charge pump dibutuhkan close loop circuit, internal pump 11.89 gpm x 2 units @3700 rpm dan external pump 44.2 gpm x 1 unit @2250 rpm. Spudcan jetting terdiri dari high pressure 80 bar pada upper ring dan low pressure 12 bar untuk lower ring.
===================================================================================================================================
Liftboat is an offshore service vessel, self elevating and self propelled vessel equipped with crane to support offshore activities.Lifting process on self-elevating jackup (liftboat)required a mechanism to facilitate operational system. There are some system which should be provided, among of them is spudcan jetting system which facilitate spudcan extraction from seabed. Other system is mechanism attached to the leg that allow hydraulic jack-up system workable. Hydraulic jack-up systemis utilized to rise up or lowering down the leg or the hull. To design these lifting operation systems, the problem were identified and defined first. By looking relevant literature review, the paramaters to design the system is determine.Hydraulic jacking system is set under two operating pressure, 200 bar for lifting the hull(88.75% motor disp @ 200 rpm, 89.79% pump disp with 750 rpm) and100 bar for lifting the leghull(28.79% motor disp with 300 rpm, 29.27% pump disp with 1200 rpm). Charge pump is required in close loop circuit, internal charge pump provide 11.89 gpm x 2 units at 3700 rpm and external pump provide 44.2 gpm x 1 unit at 2250 rpm. Spudcan jetting have two ring pipe, high pressure 80 bar on upper ring and low pressure 12 bar for lower ring.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSPe 623.862 Akh p-2014 |
| Uncontrolled Keywords: | Liftboat, Hydraulic Jack-up, Spudcan Jetting, Leg Mechanism, Liftboat, Hydraulic Jack-up, Spud Can Jetting, Leg Mechanism. |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC555 Spillways. Energy dissipation. Hydraulic jump. |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 05 Jul 2023 07:44 |
| Last Modified: | 05 Jul 2023 07:44 |
| URI: | http://repository.its.ac.id/id/eprint/98331 |
Actions (login required)
 |
View Item |