The Performance, Safety and Production Benefits of Sps Structures For Double Hull Tankers

Brooking, M; Kennedy, Stephen J.

doi:10.3940/rina.dht.2004.7

Cited by 13 publications

(7 citation statements)

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“…The calculation procedure of sandwich plate confi guration using Lloyd Register is depicted in Figure 2. The calculation step is carried out using the assumption of new building construction, per the provisions contained in the Lloyd Register [7]. The strength index (R) must be ≤ 1 to ensure the sandwich confi guration has equal strength.…”

Section: Procedures Of Sps Application Using Lr Standard / Postupak P...mentioning

confidence: 99%

“…Various studies on the application of sandwich structures in various ship designs due to static and dynamic behavior and weight-saving analysis were studied [7][8][9][10][11][12][13][14][15][16]. The expansion of knowledge in both practical and scientifi c fi elds shows how the application of sandwich material is distinctly based on the diff erent structural locations and elements.…”

Section: Introduction / Uvodmentioning

confidence: 99%

“…Tankers with a double bottom, side shell, main deck, and longitudinal bulkhead are being used for cutting-edge research into the usage of sandwich material. Due to the removal of stiff eners from the production process, the results reveal a 2.8% reduction in overall weight and 20% reduction in workload [7]. Moreover, Ismail et al [8] investigated using a hybrid sandwich made of steel/polyurethane components in a tanker's side shell and deck by adjusting the stiff ener frame spacing.…”

Section: Introduction / Uvodmentioning

confidence: 99%

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Application of Sandwich Plate System (SPS) on 155 m Barge: Framing System Confi guration, Weight saving, and Dynamic Characteristic Assessment

Tuswan¹,

Rezaldy²,

Mursid³

et al. 2023

Naše more

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The SPS application in ship structure is an innovative breakthrough that provides an excellent strength-to-weight ratio. SPS application for new construction is crucial to ensure the proposed design has better static and dynamic behavior than conventional design. The study aims to evaluate the weight savings and dynamic characteristics of different proposed framing systems of 155 m barge due to the application of various SPS types in the deck, ship hull, and bottom structures. A total of three proposed construction systems: longitudinal, transverse, and mixed framing systems, are investigated under different plate configurations, material types, and scantling sizes. In addition, the free vibration analysis is used to evaluate the influence of damage occurrence on the structural characteristics. Several damage parameters, including damage size, location, shape, and depth, are investigated using ABAQUS software. The promising result of weight saving indicates SPS application results in about 9-13%. Moreover, the debonding assessment reveals that eigenvalue decreases with increasing debonding size, where the damaging effect in higher modes is more substantial. The stiffness loss due to debonding causes a high local deformation in the debonded area. Moreover, interfacial debonding reduces eigenvalues significantly, particularly in localized debonding shapes. It can be found that several damage parameters, including damage size, location, depth, and shape, influence the eigenvalue shifts.

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Section: Procedures Of Sps Application Using Lr Standard / Postupak P...mentioning

confidence: 99%

Section: Introduction / Uvodmentioning

confidence: 99%

Section: Introduction / Uvodmentioning

confidence: 99%

See 1 more Smart Citation

Application of Sandwich Plate System (SPS) on 155 m Barge: Framing System Confi guration, Weight saving, and Dynamic Characteristic Assessment

Tuswan¹,

Rezaldy²,

Mursid³

et al. 2023

Naše more

View full text Add to dashboard Cite

show abstract

“…Pioneering research into the use of sandwich material is being conducted in tankers with a double bottom, side shell, main deck, and longitudinal bulkhead. The results show a 2.8% reduction in overall weight and a 20% reduction in workload in the manufacturing process due to the elimination of stiffener use [8]. By varying the stiffener frame spacing, Ismail et al [9,10] investigated the application of a hybrid sandwich based on steel/polyurethane components in a tanker's side shell and deck.…”

Section: Schematic Overview Of Ship Structural Assessmentmentioning

confidence: 99%

Dynamic response evaluation due to construction system modification of 155 m barge ship using finite element method

Tuswan

Amiruddin

Yudo

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The application of lightweight sandwich material as a ship structure was an innovative breakthrough that provided an excellent strength-to-weight ratio. In the sandwich application process, the proposed structural design and scantling must be designed according to the equivalent strength requirement with low weight compared to the existing structure. The research aims to evaluate the dynamic response of different construction systems of barge ships due to applying various hybrid sandwich types in the deck, ship hull, and bottom structures using the current Lloyd’s Register standard. A total of three proposed construction systems: longitudinal, transverse and mixed framing systems, are investigated under different plate configurations, material types, and scantling sizes. The numerical-based finite element approach is used to evaluate dynamic properties of natural frequency and mode shape using free vibration analysis at low mode numbers. The finite element result from the dynamic characteristic and weight reduction estimation between the existing structure and the proposed construction systems under various plate configurations, material types, and scantling sizes is evaluated to determine the application of lightweight sandwich panels in the barge structure.

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“…Other advantages are provided in specific applications, such as heat insulating performance [19], improved impact strength [20], and blast and ballistic resistance [21]. Each of these results in lower production costs and a longer, safer service life [22].…”

Section: Introductionmentioning

confidence: 99%

Ultimate Strength Behaviour and Optimization of Laser-Welded Web-Core Sandwich Panels under In-Plane Compression

Elsaka,

Guedes Soares

2023

JMSE

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In pursuit of more efficient load-bearing solutions for ship deck panels of Very Large Crude Carriers exposed to vertical hull girder bending forces, laser-welded web-core sandwich panels are considered as an alternative to conventional stiffened panels. The primary goal is to identify a lighter steel sandwich structure capable of matching the ultimate strength of conventional counterparts. Utilizing non-linear finite element analysis, the ultimate strength of conventional decks subjected to uniaxial compression is assessed. Attention is then shifted to laser-welded sandwich panels, with a detailed examination of how various design parameters influence their performance. Specifically, four key design aspects of unidirectional vertical webs, including face thickness, web thickness, web height, and web spacing, are optimized to strike a balance between weight and strength through structural optimization techniques combined with the response surface method. Ultimately, a comparison is drawn between the ultimate strength of these innovative steel sandwich panels and their conventional, stiffened counterparts. The findings reveal that web-core sandwich panels, when employed as an alternative, result in a notable reduction in hull weight, thereby showcasing the potential for a more efficient and sustainable approach in the maritime industry.

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The Performance, Safety and Production Benefits of Sps Structures For Double Hull Tankers

Cited by 13 publications

References 0 publications

Application of Sandwich Plate System (SPS) on 155 m Barge: Framing System Confi guration, Weight saving, and Dynamic Characteristic Assessment

Application of Sandwich Plate System (SPS) on 155 m Barge: Framing System Confi guration, Weight saving, and Dynamic Characteristic Assessment

Dynamic response evaluation due to construction system modification of 155 m barge ship using finite element method

Ultimate Strength Behaviour and Optimization of Laser-Welded Web-Core Sandwich Panels under In-Plane Compression

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