Ice-breaker bow structure

An icebreaker and bow technology is applied in the field of icebreaker hull line shape design, which can solve the problem that the ship shape cannot meet polar icebreaking navigation, etc., and achieve the effects of easy ice ejection, low ice breaking resistance and strong ice breaking ability.

Active Publication Date: 2016-06-15
CHINA SHIP SCI RES CENT SHANGHAI DIV
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Problems solved by technology

[0005] Aiming at the problem that the above-mentioned existing ship types cannot satisfy polar ice-breaking navigation, the pr...

Method used

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Embodiment Construction

[0016] The bow structure of the icebreaker of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The bow structure of the icebreaker of the present invention improves the line shape of the bow of the polar icebreaker, so that the ship has the effects of strong icebreaking ability, low icebreaking resistance, high ice discharge efficiency, and reduces the risk of ice cubes entering the propeller working area and the risk of grounding accidents.

[0018] like figure 1 As shown, the bow line of the icebreaker is mainly composed of a forward-inclined bow, a wedge-shaped front heel smoothly connected with the hull, and a V-shaped cross section. The bow line is symmetrical about the longitudinal section of the hull. Specifically, the bow structure of the icebreaker is composed of a forward-leaning bow 4, a wedge-shaped front heel 5 smoothly connected with the hull, and a "V"-shaped cross-section 7. The bow line is symmetrica...

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Abstract

The invention discloses an ice-breaker bow structure. The transverse section of a forwards-bent stem (4) of the bow line type is in a V shape. The included angle (a) between each vertical line and a corresponding middle longitudinal section line is 40 degrees-70 degrees. The bottom end of the bow is provided with a wedge-shaped front heel (5) of which the height (h) is 75%-125% of the thickness of an ice layer, the included angle (c) between a front end profile (6) of the wedge-shaped front heel and the vertical direction is 1 degree-8 degrees, and the front heel is in smooth connection with an ice-breaker body. According to the ice-breaker bow structure, by improving the line type of the polar ice-breaker bow, the stem is bent forwards, the transverse section is in the V shape, and the bottom end of the bow is provided with the novel bow line type of the wedge-shaped front heel through a knuckle line, so that the ice-breaker body has the effects that the icebreaking ability is high, the icebreaking resistance is low, ice is easy to discharge, the risk that ice blocks enter an icebreaker back propeller working area can be reduced, and the polar ice-breaker is prevented from stranding accidents.

Description

technical field [0001] The invention relates to an icebreaker bow structure, belonging to the technical field of icebreaker hull line design. Background technique [0002] Ship shape design is the key to the overall design of polar ships. The main purposes of self-icebreaking ship shape design are: to select appropriate main dimensions and ship shape parameters to meet the basic requirements of layout and performance; Ensure excellent ice removal performance, reduce the possibility of crushed ice entering the propeller flow field, etc. Therefore, the linear design features of self-icebreaking polar ships are mainly concentrated in the bow and stern, and the midship part mainly meets the requirements of loading and arrangement. The bow line shape of the self-ice-breaking polar ship is closely related to the propulsion power required by the ice class and the propulsion power required by the ice-free waters. important. For commercial ships sailing in the polar regions, in or...

Claims

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Application Information

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IPC IPC(8): B63B1/06B63B35/08
CPCB63B1/06B63B35/083B63B2211/06
Inventor 刁峰周伟新陈京普苏甲王杉李小冬魏锦芳王艳霞赵强蒋武杰冯松波程红蓉赵璐
Owner CHINA SHIP SCI RES CENT SHANGHAI DIV
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