On the efficient time domain stress analysis for the rolling chock of an independent type LNG tank targeting fatigue damage evaluation

Park, Myong-Jin; Choi, Byoungdeog; Kim, Yooil

doi:10.1016/j.marstruc.2016.12.010

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…Recent studies pertaining to membrane-type or independent type-B tanks are relatively abundant [7][8][9][10][11][12][13]. Kim et al proposed a procedure for structural integrity evaluation of a type-B LNG fuel tank based on the International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC code).…”

Section: Introductionmentioning

confidence: 99%

Structural Integrity Assessment of Independent Type-C Cylindrical Tanks Using Finite Element Analysis: Comparative Study Using Stainless Steel and Aluminum Alloy

Park

Cho

Kim

2021

Metals

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The International Maritime Organization stipulates that greenhouse gas emissions from ships should be reduced by at least 50% relative to the amount observed in 2008. Consequently, the demand for liquefied natural gas (LNG)-fueled ships has increased significantly. Therefore, an independent type-C cylindrical tank, which is typically applied as an LNG fuel tank, should be investigated. In this study, structural integrity assessments using finite element analysis are performed on C-type LNG fuel tanks for a sea-cleaning vessel. In addition, the applicability of stainless steel and aluminum alloys is evaluated for LNG tank construction. Structural analyses and fatigue limit evaluations, including heat transfer analyses for the tank based on IGC code requirements, are performed, and the results are compared. The results of this study are expected to facilitate the selection of materials used for independent type-C tanks.

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Section: Introductionmentioning

confidence: 99%

Structural Integrity Assessment of Independent Type-C Cylindrical Tanks Using Finite Element Analysis: Comparative Study Using Stainless Steel and Aluminum Alloy

Park

Cho

Kim

2021

Metals

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“…Sloshing could be defi ned as the fl uid movement inside a container due to free surfaces and external forces that cause a sudden load of fl uid. The amount of liquid free LNG surface pressure could have a direct impact cause damage to the tank wall [1]. Another effect of sloshing was to increase the LNG temperature which affects the increasing pressure in the tank [2], and if the pressure tank exceeds the maximum limit of the design pressure, it could cause damage.…”

Section: Introductionmentioning

confidence: 99%

Sloshing effects on the longitudinal tank type c due to motions of the LNG ship

Sulisetyono¹,

Mochamad²,

Hadiwidodo³

2020

J Appl Eng Science

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This paper described the sloshing simulation of the LNG (Liquid Natural Gas) tank due to the LNG ship's motion during operation at sea. The ship motions in irregular wave were obtained by 3D diffraction panel method in frequency domain. Coupled motions of surge, heave, and pitch due to the head sea of incoming wave were considered in the solving of longitudinal sloshing problem in certain range of wave frequency. The LNG sloshing on the Bilobe tank type was studied by using the Computational Fluid Dynamic technique with attention to obtain a maximum pressure that was occured on inner wall of the tank. Three cases of the LNG fi lling level including an empty (10%h), a half (50%h), and a full (90%h) conditions of tank height (h) were considered in order to investigate the free surface effect due to the LNG sloshing. The simulation results have shown that the maksimum pressure due to sloshing at inner wall have increased by 11.1%, 5.4%, and 11.5% while in the load conditions of full, a half, and an empty respectively. The maximum pressure that occurs did not exceed 6 percent based on the calculation of probability occurrence for all LNG fi lling level conditions.

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“…Furthermore, studies on structural integrity assessment and design of type-C LNG tanks applied for LNG carriers of various sizes were performed [8,9], and a structural design of an LNG cargo tank for LNG carriers was conducted [10]. In addition, a load analysis of an independent type cargo tank for LNG carriers and numerical simulation of liquid sloshing in ship tanks were also carried out [11,12], as well as a timedomain stress analysis for the rolling chock of an independent type LNG tank [13]. Finally, a fatigue analysis method for an LNG tank was presented, and a fatigue strength assessment for an LNG cargo tank was conducted [14,15].…”

Section: Introductionmentioning

confidence: 99%

Design of Independent Type‐B LNG Fuel Tank: Comparative Study between Finite Element Analysis and International Guidance

Kim

Park

et al. 2018

Advances in Materials Science and Engineering

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In 2012, the International Maritime Organization (IMO) regulated the emissions of SO x and NO x by setting the emission control area and strengthened the regulations on ship building and operation. Because the environmental regulations have been reinforced, there has been a drastic increase in LNG-fueled ships. erefore, it is necessary to carry out systematic research on the design of the LNG fuel tank, which is one of the important components of LNG fuel supply systems. In this study, aiming to design a type-B LNG fuel tank used in the real structure, a procedure for structural integrity assessment considering the International Gas Carrier (IGC) Code was proposed. A 10,000 TEU containership was chosen as an operating vessel, and independent type-B tank was selected as an LNG fuel tank. Structural integrity was evaluated by applying a systematic procedure based on the IGC Code. A series of finite element analysis was conducted under the various design loads and operating conditions. Fatigue life and fatigue damage were calculated using the numerical results obtained from transient thermal-structural analysis and fatigue analysis to provide the safety level of the design scheme.

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On the efficient time domain stress analysis for the rolling chock of an independent type LNG tank targeting fatigue damage evaluation

Cited by 5 publications

References 7 publications

Structural Integrity Assessment of Independent Type-C Cylindrical Tanks Using Finite Element Analysis: Comparative Study Using Stainless Steel and Aluminum Alloy

Structural Integrity Assessment of Independent Type-C Cylindrical Tanks Using Finite Element Analysis: Comparative Study Using Stainless Steel and Aluminum Alloy

Sloshing effects on the longitudinal tank type c due to motions of the LNG ship

Design of Independent Type‐B LNG Fuel Tank: Comparative Study between Finite Element Analysis and International Guidance

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