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Three-dimensional modeling method for bilge keel structure and bilge keel structure

A three-dimensional modeling, bilge keel technology, applied in 3D modeling, image data processing, instruments, etc., can solve the problems of inability to achieve accurate modeling, inaccurate calculation of the weight center of gravity, large deviation of bilge keel structural parts, etc. The effect of calculating accuracy, avoiding deviations, and improving structural accuracy

Pending Publication Date: 2018-03-20
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a three-dimensional modeling method of the bilge keel structure and the bilge keel structure, so as to solve the large deviation of the parts of the bilge keel structure and the inaccurate calculation of the weight center of gravity caused by the inability to realize accurate modeling of the bilge keel structure in the prior art technical issues

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  • Three-dimensional modeling method for bilge keel structure and bilge keel structure
  • Three-dimensional modeling method for bilge keel structure and bilge keel structure
  • Three-dimensional modeling method for bilge keel structure and bilge keel structure

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[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] A three-dimensional modeling method for a bilge keel structure, comprising the following steps,

[0036] S10, smoothing the bilge keel positioning line type A on the hull frame line shape diagram, define the space curve obtained by smoothing as the bilge keel positioning line type, as shown in figure 2 Shown; As a preferred solution, the positioning line is the center line of the bilge keel on the hull rib line diagram.

[0037] S20. According to the requirements of the bilge keel structure, draw the bilge keel structure line in stages on the line diagram of the hull ribs; as an optimal solution, such as image 3 As shown, taking the rib line type B of the hull a...

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Abstract

The invention relates to a three-dimensional modeling method for a bilge keel structure and the bilge keel structure. The three-dimensional modeling method comprises the following steps: performing graded drawing on bilge keel structure lines according to structural features of the bilge keel; measuring coordinate values at each grade of the bilge keel structure lines; and inputting the coordinatevalues of the acquired discrete points into a modeling software system for fairing, thereby obtaining the three-dimensional model of the bilge keel structure which meets the actual operating requirements and is matched with the ship hull plate. According to the method disclosed by the invention, three-dimensional modeling of the bilge keel is realized, the integrity of the ship body structure model is improved, deviation of the parts of the bilge keel structure caused by manual lofting is avoided, and the structure precision is increased. In addition, the three-dimensional model of the bilgekeel structure obtained by the method can directly participate in calculation of ship weight center of gravity, and the calculation accuracy is improved. Meanwhile, the structural parts are accuratelyand rapidly expanded by the model, and the operating efficiency is increased.

Description

technical field [0001] The invention relates to the field of hull structure modeling, in particular to a three-dimensional modeling method for a bilge keel structure and the bilge keel structure. Background technique [0002] At present, for the external structure of the hull, especially the bilge keel structure without linear shape, it has been difficult to model in 3D, so the bilge keel structure can only be completed by manual lofting. The parts that are manually set out often have large deviations, especially at the interface of each segment, the front and rear joints will not be smooth, and it is necessary to re-cut the material, or even adjust the assembly twice, resulting in certain economic losses. [0003] In addition, there is no three-dimensional model of the bilge keel structure, which can only be estimated when calculating the center of gravity of the ship, which reduces the accuracy of the calculation of the center of gravity. Contents of the invention [00...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F2119/18G06F30/15G06F30/20
Inventor 杨伟锋黄庆锋郭平
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
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