Hippocampus-shaped bulbous bow type bow structure of marine tug

A bulbous bow and bow technology, which is applied in the field of seahorse bulbous bow structure of marine tugboats, can solve the problems of increased wave-making resistance, unusable jacking operations, unfavorable installation of large-diameter bow and side thrusters, etc. problem, to achieve the effect of increasing the lateral thrust moment, avoiding safety accidents at sea, and improving the ability to control the ship
CN105129017AInactive Publication Date: 2015-12-09SHANGHAI MERCHANT SHIP DESIGN & RES INST
5 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI MERCHANT SHIP DESIGN & RES INST
Publication Date
2015-12-09
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a hippocampus-shaped bulbous bow type bow structure of a marine tug. The front part of a bulbous bow of the bow structure is positioned below a bow; the front end in the front of the bulbous bow is positioned at the rear part of the head end of a deck; the bulbous bow is hippocampus-shaped; one or more horizontal thrusters are mounted at the rear part of the bulbous bow of the bow structure; each horizontal thruster transversely penetrates through the rear part of the bulbous bow. The bow structure fully takes multiple factors such as ship resistance, sailing, arrangement, horizontal thruster mounting and using functions into consideration, so that compared with an oblique straight bow, the ship sailing economy is improved; the width of a part where a bow thruster is mounted is increased, so that the mounting of the large-diameter bow thruster can be facilitated, and the bow thruster can be conveniently arranged as far forward as possible to effectively improve applied moment of the horizontal thrusters; compared with the conventional bulbous bow type bow, after being close to an FPSO, a marine platform and other marine structures to perform pushing operation, the bulbous bow is free of collision with a pushed ship or a platform when the ship is in any longitudinal floating state, so that the head structure safety of the ship is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a bow structure of a marine tugboat, specifically, a hippocampal bulbous bow structure of a marine tugboat, and belongs to the technical field of bow structures. Background technique

[0002] Offshore tugboats are mainly engaged in towing of offshore structures such as ships and offshore platforms, anchoring of offshore platforms, platform supply services, underwater engineering equipment installation support and other engineering operations and services. When the Froude number Fr ≥ 0.28, the offshore tugboat is a medium-high speed vessel.

[0003] Offshore tugboat is an important ship type in ocean engineering, which has the functions of towing, supplying, guarding and assisting marine operations. The working environment of marine tugboats is relatively complex, and there are many demands for marine work tasks, especially the pushing operation of marine structures, such as the high requirements for the safety of the bow struc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More