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Clearance hole of large joint of ship

A technology for welding holes and ships, which is applied in ship construction, ship parts, ships, etc., can solve problems such as structural damage, structural strength fatigue, and stress concentration, and achieve the goals of improving stress concentration, enhancing fatigue resistance, and increasing service life. Effect

Inactive Publication Date: 2019-07-09
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially at the segmental large joints, because of the opening of the large joint welding holes in the entire ring segment, the structural strength, especially the fatigue, is in the worst state, and there is a large stress concentration phenomenon at the position of the welding holes, and there is a risk of structural damage

Method used

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  • Clearance hole of large joint of ship
  • Clearance hole of large joint of ship

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Embodiment Construction

[0021] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention discloses a clearance hole of a large joint of a ship. The clearance hole is preformed in the portion, corresponding to the large joint of the ship, of a board of the ship and comprisesa first side, a second side and a third side separately connected to the end portions of the first side and the second side, the first side and a member where the large joint is located coincide, so that the clearance hole is communicated with the large joint, and a soft toe structure is arranged at the junction between the third side and the member. The clearance hole is preformed in the portion,corresponding to the large joint of the ship, of the board of the ship, the soft toe structure is arranged at the junction between the third side and the member, and the stress concentration state ofthe end of the clearance hole can be effectively improved; the fatigue resistance capacity of the clearance hole is enhanced, the service life of the structure is prolonged, and the maintenance costof a ship owner is reduced.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a large seam through-welding hole of a ship. Background technique [0002] In the construction and design of ships, in order to facilitate the continuous welding during welding to ensure the tightness and strength of the welds, through-welding holes are usually opened on the components intersecting the joints to be welded to facilitate construction personnel's work. operate. The common forms of through-welding holes include semi-circular holes and half-waist holes. [0003] Conventional ship-type cargo tanks are generally located in the midship area, and the midship area often bears relatively large bending moments, especially the upper deck and longitudinal members within 0.1D from the bottom of the ship (where D is the molded depth) suffer relatively the largest bending moment. The bottom of the cargo hold is generally set as a double-hull, and the structure is greatly s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B9/06B63B9/00
CPCB63B73/00B63B71/00
Inventor 朱成平陈洁礼
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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