Abstract Transporting mass products from one country to others is essential activities in industrial cycle. Ships are selected as reliable carriers for this objective considering traveling time and operational cost. During its operational, accidental events such as storm, high tide and bad weather may cause the products which are usually packed in freight containers fall into sea, and impacts the ship structure. In this situation, casualties on both involved structures can be detrimental. This work analyzes a series of ship-container collision in maritime territory in order to investigate resulting structural phenomena. The finite element approach is selected to solve the designed collision cases where the discussion is directed to selected crash-worthiness criteria. Impact speed between ship and container structures is chosen as the main parameter in the designed scenario by judging whether this parameter is a good representative of sea state. Overall results indicate that the indication for container rebounding after impact was high. It was followed by a significant increment of the internal energy after higher velocity, which was more than 5 m·s−1, had been applied to the scenario. Quantification of specific structural performance suggests that approximately more than 80% of the damage occurrs on the contacted area of the container structure.

Investigation of structural performance subjected to impact loading using finite element approach: case of ship-container collision

http://koreascience.or.kr:80/article/JAKO201908662570454.pdf

Structural optimization of stiffener layout for stiffened plate using hybrid GA

Study on optimal design of hatch cover via a three-stage optimization method involving material selection, size, and plate layout arrangement

The present investigation is an approach to enhance the outline of tanker. Thicker tanker builds the vehicle weight because of this the quantity of shipments required to transport a similar measure of item. The fundamental target is to make the ideal plan and enhance its capacity to withstand the powers. By giving the filet shape stresses will be disseminate all through and configuration will safe. Initially the Cad model of existing tanker will be modeled after that FEA investigation will be perform and plan of tanker will altering. Limit of the tanker has been keeping same (12,000 Ltr). After the examination might be the thickness of tanker can be diminished because of this material cost of the tanker will decreased. By limiting the material same measure of item might be transport.

/pdf/design-improvement-of-mobile-emulsion-tanker-a-review-20gf1ojkjp.pdf

Design Improvement of Mobile Emulsion Tanker - A Review

Numerous studies have been conducted to minimize material costs and improve efficiency, one of which involves using the genetic algorithm (GA) for material selection. Although the GA provides the best solution, it is computationally intensive. To mitigate this issue, a simple method was proposed. The stiffened plate, a primary component of ship structure, was chosen as the optimization model for this study, with the objective of minimizing material costs using the proposed simple method. Two design variables, plate thickness (t) and plate material type (m), were selected with specific constraints. The simple method was used to determine the appropriate plate material types to reduce material costs. Additionally, size optimization was conducted using stress equations to produce the optimal thickness. The results showed that this method significantly reduced the computational time and material cost of the ship structure.

/pdf/material-cost-minimization-method-of-the-ship-structure-r0b6t1cy.pdf

Sang-Hoon Shin

Papers

A Study on Minimum Weight Design of Vertical Corrugated Bulkheads for Chemical Tankers