Longitudinal hatch coaming toe end of bulk cargo ship

Abstract

The invention discloses a longitudinal hatch coaming toe end of a bulk cargo ship. The longitudinal hatch coaming toe end is arranged between two adjacent hatch coaming longitudinal plates; the two hatch coaming longitudinal plates are each fixedly connected with a toe end plate, and the two toe end plates are connected through a rectangular plate; the distance from the edge line of the upper endof the rectangular plate to a deck is less than 150mm; the lower end of each toe end plate is fixedly connected to the deck, the edge line of the upper end of the toe end plate comprises a linear edgeand an arc-shaped edge, the linear edge is distributed obliquely downwards, and the lower end of the arc-shaped edge is connected with the upper end of the linear edge; the lower end part of the linear edge of the toe end plate on the left side of the rectangular plate is connected with the left end part of the edge line of the upper end of the rectangular plate; the lower end part of the linearedge of the toe end plate on the right side of the rectangular plate is connected with the right end part of the edge line of the upper end of the rectangular plate. The toe end plates are continuousin structure, and structural fatigue caused by sudden change of the structure is avoided; structural safety is met, the structure is compact, and design and construction workloads can be reduced.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a toe end of a longitudinal hatch of a bulk carrier. Background technique [0002] In the cargo hold area of ​​bulk carriers, there are usually multiple independent hatch coamings. Due to the sudden change in the structure, the toe end of the longitudinal plate of the hatch coaming is prone to fatigue cracks during the entire life cycle of the ship, affecting the safety of the ship. [0003] In order to meet the structural safety requirements of the longitudinal toe end, the traditional solution is to design a complex toe end form and insert the deck where the thick toe end is located to optimize the structural transition and improve the fatigue performance of the toe end. In the whole process, the shape and thickness of the toe end need to be adjusted through repeated calculations to make it finally meet the fatigue requirements. [0004] The traditional solution requires a lot ...

AI Technical Summary

Problems solved by technology

In the process of ship construction, due to the additional thickness of the main deck, it also increased a lot of construction work

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