Analisa Kerusakan Slip Way Saat Peluncuran di PT.Dok Bahari Nusantara Cirebon

Farauqi, Alwin (2019) Analisa Kerusakan Slip Way Saat Peluncuran di PT.Dok Bahari Nusantara Cirebon. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam proses peluncuran kapal, pasang surut air laut merupakan hal paling penting untuk proses keamanan peluncuran baik kapal ataupun slip ways. Untuk kasus peluncuran ini terjadi saat kondisi air surut sehingga slip ways tidak tercelup air. Oleh karena itu, slipways menerima beban terlalu besar yang menimbulkan deformasi, keretakan dan lain-lain.
Penelitian ini bertujuan untuk menganalisa kerusakan pada slip ways dalam kondisi slip ways tidak tercelup air dan tercelup air. Untuk kondisi tidak tercelup air dilakukan variasi sudut pada slip ways sebesar 30,40 dan 50. Pada variasinya menggunakan software solidworks. Setelah memvariasikan sudut dilakukan simulasi pada slip ways untuk mengetahui besarnya nilai deformasi dan nilai stress.
Dalam perhitungan saat kondisi slip ways tidak tercelup air dan beban kapal lebih berat sebesar 609 ton dibandingkan dengan slip ways saat tercelup air besarnya hanya 447 ton. Analisa menggunakan softwere solidworks saat kondisi tidak tercelup air dengan sudut 30 terjadi deformasi (displacement) sebesar 6.46 mm, nilai tegangan (stress) sebesar 1.22 Mpa. Sudut 40 terjadi deformasi (displacement) sebesar 6.72 mm nilai tegangan (stress) sebesar 0.94 Mpa. Sudut 50 terjadi deformasi (displacement) sebesar 6.99 mm nilai tegangan 0.79 Mpa. Untuk tegangan maksimal slip ways untuk berat 609 ton sebesar 1.12 MPa. Sudut 30 tidak memenuhi karena nilai tegangan (stress) melebihi nilai maksimal slip ways. Sehingga agar slip ways tidak mengalami kerusakan, maka minimal menggunakan sudut 40. Menaikan sudut pada slip ways mengakibatkan resiko gagal meningkat terhadap sisi kapal dalam proses peluncurannya.
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In the process of launching the ship, the tides are the most important thing for the safety process of launching both ships and slip ways. For the case of launch, this occurs when the water conditions are low, so the slipways are not submerged by water. Therefore, slipways receive too large a load that causes deformation, cracks and so on.
This research aims to analyze the damage to slip ways in slip ways are not submerged and submerged by water. For non-submerged conditions the angles of the slip ways were carried out at 30, 50, 70 and 100. The variations used solidworks software. After varying the angle, the simulation of slip ways was done to determine the magnitude of the deformation value and stress value.
In the calculation when the slip ways condition are not submerged in water and the ship's load was heavier by 501.38 tons compared to the slip ways when the water was submerged in 447 tons. Varying the angle on the slipways using solidworks when the condition is not submarged in water at 30 angles there is a displacement of 6.46 mm, the stress value is 1.22 Mpa. 40 angle there is a displacement of 6.72 mm, the stress value is 0.94 Mpa. 50 angle there is a displacement of 6.99 mm, the stress value is 0.79 Mpa. Angle 30 does not fulfill because the value of stress (stress) exceeds the maximum value of slip ways. So that the slip ways are not damaged, then at least use an angle of 40. Increasing the angle on the slip ways results in a risk of failure to increase on the side of the ship in the launch process.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSSP 623.83 Far a-1 2019
Uncontrolled Keywords:	Launch of ships, Slip Ways, Tide of Seawater, Solidworks, Deformation, Shear stress
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM298.5 Shipbuilding industri. Shipyards
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Alwin Farauqi
Date Deposited:	29 Nov 2021 18:57
Last Modified:	29 Nov 2021 18:57
URI:	http://repository.its.ac.id/id/eprint/61627

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