CN112395691A - Design method of ship port and starboard symmetrical structure and jacking system - Google Patents
Design method of ship port and starboard symmetrical structure and jacking system Download PDFInfo
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Abstract
The invention relates to a design method of a ship port and starboard symmetrical structure and a jacking system, which are used for designing symmetrical port and starboard structures and comprise the following steps: s1, model generation: s11, establishing a three-dimensional design model of the port structure and a simplified lightweight model; s12, carrying out mirror image processing on the lightweight model of the port structure to obtain a lightweight model of the starboard structure, wherein the lightweight model of the starboard structure is in association with the lightweight model of the port structure; s2, generating a set material file: s21, defining production information of parts in the three-dimensional design model of the port structure, and generating a digital quantity nesting file of the parts; s22, symmetrically obtaining a digital quantity nesting file of the parts in the starboard structure according to the digital quantity nesting file of the parts in the port structure; s3, generating a part cutting file: s31, arranging and nesting the symmetrical parts on the same parent metal model to obtain a nesting arrangement file; and S32, generating a corresponding part cutting file according to the nesting arrangement file. The nesting system is obtained based on a design method.
Description
Technical Field
The invention relates to the field of ship design, in particular to a design method of a ship port and starboard symmetrical structure and a jacking system.
Background
At present, the structural design and manufacturing process in the ship industry mainly comprises hull profile design, structural design, process design, part nesting and lofting, cutting, machining, part construction and segmented construction. The structure design of the bottom of the ship cargo hold, the bilge part and the side area is usually in bilateral symmetry, and a small number of bilateral symmetry structures exist in the bow part, the stern part, the cabin and the built-up area. In the production design process, structural modeling and process modeling are required for structural members which are symmetrical on the port and the starboard, and then corresponding symmetrical part files are generated to serve as nesting bases. In the process, the symmetrical models of the port structure and the starboard structure are only used for the background of outfitting professional design, so that modeling is realized manually or by a program, a redundant step is provided for the hull structure, and information of the design models is more numerous for outfitting design cooperation, so that the efficiency improvement of the structure and outfitting professional cooperation design is not facilitated. It is known that modifications in the ship design process, including review modifications, design error modifications, professional balance modifications, construction process modifications, etc., which are accumulated for not less than 10 times, maintain the consistency of the information of the symmetrical port-side and starboard-side structural models, which is a great challenge for designers and is not favorable for the control of design quality. Meanwhile, sorting of the cut material object parts of the port and starboard symmetrical structure is complicated, in order to improve the steel utilization rate and the effectiveness of starting and storing, the symmetrical sections of the symmetrical parts are usually sleeved together, but the symmetrical parts are not arranged on the same steel plate, so that a sorter needs to find out the symmetrical parts from different parts and place the symmetrical parts into corresponding symmetrical section trays, the sorting process is complicated and time-consuming, the construction period is prolonged invisibly, and the improvement of the construction efficiency is not facilitated.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a design method and a nesting system for a ship port and starboard symmetric structure, which can simplify the model design strength of the ship symmetric port and starboard structures, improve the design efficiency, improve the efficiency of nesting and sorting symmetric parts, and ensure the quality of the parts.
In order to achieve the above object, the present invention provides a design method of a ship port and starboard symmetrical structure, which is used for designing symmetrical port and starboard structures, and comprises the following steps:
s1, model generation:
s11, establishing a three-dimensional design model of the port structure according to the ship design content, and simplifying to obtain a lightweight model of the port structure according to the three-dimensional design model;
s12, carrying out mirror image processing on the lightweight model of the port structure to obtain a lightweight model of the starboard structure, wherein the lightweight model of the starboard structure is in association with the lightweight model of the port structure;
s2, generating a set material file:
s21, defining production information of parts in the three-dimensional design model of the port structure according to the ship design content, generating a digital quantity nesting file of the parts according to the production information of the parts, and storing the digital quantity nesting file in a nesting file library;
s22, obtaining a digital quantity nesting file of the parts in the starboard structure through a symmetric algorithm according to the digital quantity nesting file of the parts in the port structure, and storing the digital quantity nesting file in a nesting file library;
s3, generating a part cutting file:
s31, recording two symmetrical parts in the port structure and the starboard structure as a symmetrical part group, extracting a digital quantity trepanning file of the symmetrical part group from a trepanning file library according to construction requirements, and distributing the symmetrical part group on the same parent metal model according to the digital quantity trepanning file to obtain a trepanning distribution file;
s32, generating corresponding part cutting file according to the nesting arrangement file
Further, the step S12 further includes: and during mirror image processing, automatically naming the parts in the lightweight model of the starboard structure according to the part names in the three-dimensional design model of the port structure and the part naming rules, so that the part names in the starboard structure correspond to the part names in the port structure one by one.
Further, in step S31, according to the part naming rule, the digital quantity package files of the two parts with corresponding names are extracted from the package file library, that is, the digital quantity package files of the symmetric part group
Further, in step S31, a plurality of symmetrical component sets are arranged on a parent material model
Further, in the step S31, according to the typesetting optimization principle, the parts of different symmetrical part groups are subjected to adjacent nesting according to the long edge bonding mode.
Further, in step S21, the production information includes design information, manufacturing information, and process information, and the design information includes contour information of the part.
Further, the parts in the port structure comprise profiles and plates.
The invention also provides a jacking system with a ship port and starboard symmetrical structure, which is characterized in that: the nesting system is based on the design method of claim 1, comprising:
the model conversion module is used for converting the three-dimensional design model into a lightweight model and carrying out left and right mirror image processing on the lightweight model;
the production information definition module is used for defining the production information of the parts in the three-dimensional design model according to the ship design content;
the nesting file generating module is used for generating a digital quantity nesting file of the part according to the production information of the part;
the jacking file conversion module is provided with a symmetrical calculation rule and is used for symmetrically calculating the digital quantity jacking file of the part;
and the jacking shunting module is used for jacking two symmetrical parts in the port structure and the starboard structure on the same base material according to the digital jacking file.
As described above, the design method and the nesting system according to the present invention have the following advantageous effects:
1. through model mirror image processing, the design process of symmetrical port structure and starboard structure is simplified, hull structure design efficiency is promoted, the requirements of outfitting various specialties on hull structure integrity and light weight are ensured, and the design synergy efficiency of various specialties is promoted.
2. The design data of the symmetrical port structure and the starboard structure are accurate, so that the quality problem caused by modification of various designs, processes, external requirements and the like in the design process is avoided, and the accuracy of the design data is ensured;
3. the digital quantity nesting files of the left and right symmetrical parts in the hull structure are obtained through symmetrical calculation, and then the left and right symmetrical parts are simultaneously arranged and nested according to the digital quantity nesting files, so that subsequent simultaneous production is facilitated, the sorting procedure on the production site can be optimized, the manufacturing preparation is effectively ensured, and the construction period is shortened.
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FIG. 1 is a schematic flow chart of the design method of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.
Referring to fig. 1, the invention provides a design method of a ship port and starboard symmetrical structure, which is used for designing symmetrical port and starboard structures, wherein the port and starboard structures are symmetrical about a ship port and starboard central plane, each of the port and starboard structures comprises a plurality of parts, and the parts in the port structure are symmetrical to the parts of the starboard structure one by one.
The design method of the invention comprises the following steps:
s1, model generation:
s11, establishing a three-dimensional design model of the port structure according to the ship design content; and simplifying to obtain a lightweight model according to the three-dimensional design model. Specifically, the three-dimensional design model is a common three-dimensional model including structural design parameters, the three-dimensional design model has a plurality of part models, and each part model has a corresponding name when the model is built. And then carrying out lightweight processing on the three-dimensional design model to obtain a lightweight model, wherein the lightweight model only comprises lightweight bodies of all parts and does not comprise various structural design parameters of the parts, so that the model is greatly simplified and is convenient for subsequent use and operation.
And S12, performing mirror image processing on the lightweight model of the port structure to obtain a lightweight model of the starboard structure, and keeping connection with the lightweight model of the port structure. And automatically naming the parts in the lightweight model of the starboard structure according to the part names in the three-dimensional design model of the port structure and the part naming rules while mirroring the model, so that the part names in the starboard structure and the part names in the port structure are in one-to-one correspondence, namely the names of two symmetrical parts left and right are kept in correspondence.
The port structure and the starboard structure only serve as backgrounds in design processes such as outfitting professional design and the like, so that the shape of the structure only needs to be concerned, design parameters of the structure do not need to be concerned, the lightweight model of the starboard structure is obtained through the lightweight model mirror image processing of the port structure, the lightweight model can meet the background requirements of outfitting professional design, a three-dimensional design model of the starboard structure does not need to be additionally established, and modeling steps and difficulty are simplified. In addition, because the lightweight model of the starboard structure is associated with the lightweight model of the port structure, when modification is needed, only the three-dimensional design model of the port structure needs to be modified, the lightweight model of the port structure is modified and updated accordingly, and the lightweight model of the starboard structure is also modified and updated accordingly, so that the modeling work is effectively reduced, and the working efficiency is improved.
S2, generating a set material file:
and S21, defining production information of parts in the three-dimensional design model of the port structure according to the ship design content, wherein the production information content can be determined according to actual needs, and specifically comprises design information (including contour information, dimension data and the like), manufacturing information, process information and the like. And then generating a digital quantity trepanning file of the part according to the production information of the part, wherein the digital quantity trepanning file is a file based on the digital quantity trepanning, and the generated digital quantity trepanning file is stored in a trepanning file library. The parts in the port structure mainly comprise plates and profiles, the production information of the plates comprises information describing the ship direction, the outline information and the process direction of the plates, and the production information of the profiles comprises information describing the ship direction, the cutting direction and the process direction of the profiles.
And S22, obtaining the digital quantity nesting file of the parts in the starboard structure through a symmetric algorithm according to the digital quantity nesting file of the parts in the port structure, and storing the digital quantity nesting file in a nesting file library.
S3, generating a part cutting file:
and S31, recording two symmetrical parts in the port structure and the starboard structure as a symmetrical part group, extracting a digital quantity nesting file of the symmetrical part group from a nesting file library according to construction requirements, and distributing nesting the symmetrical part group on the same parent metal model according to the digital quantity nesting file to obtain a nesting distribution file.
Specifically, in this embodiment, according to the part naming rule, the digital quantity nesting files of the two parts with corresponding names are extracted from the nesting file library, that is, the digital quantity nesting files of the symmetric part group, and are included in one process, the digital quantity nesting files include information such as the contour size of the parts, and the symmetric part group is arranged on the same parent material model to obtain a nesting arrangement file. And preferably, arranging and nesting a plurality of symmetrical part groups on the same base metal model, and performing adjacent nesting on parts of different symmetrical part groups according to a long-edge bonding mode according to an optimal typesetting principle.
And S32, generating a corresponding part cutting file according to the nesting arrangement file. The part cutting file is used for guiding the cutting machine to cut and manufacture parts on the base material.
The design method can be carried out on three-dimensional design software such as CATIA, SolidWorks and the like, and based on the design method, corresponding functional modules can be designed to realize the specific operation in the invention.
The invention also provides a jacking system with a ship port and starboard symmetrical structure, which is based on the design method and comprises the following modules: the model conversion module is used for converting the three-dimensional design model into a lightweight model and carrying out left and right mirror image processing on the lightweight model; the production information definition module is used for defining the production information of the parts in the three-dimensional design model according to the ship design content; the nesting file generating module is used for generating a digital quantity nesting file of the part according to the production information of the part; the jacking file conversion module is provided with a symmetry calculation rule and is used for symmetrically calculating the digital quantity jacking file of the part and symmetrically calculating the digital quantity jacking file of the part in the port structure to obtain the digital quantity jacking file of the part in the starboard structure; and the jacking shunting module is used for jacking two symmetrical parts in the port structure and the starboard structure on the same base material according to the digital jacking file.
From the above, the design method and the nesting system of the invention have the following advantages:
1. the design process of the symmetrical port structure and the symmetrical starboard structure is simplified, the design efficiency of the hull structure is improved, the requirements of outfitting various specialties on the integrity of the hull structure and the light weight are met, and the design synergy efficiency of the specialties is improved.
2. The design data of the symmetrical port structure and the starboard structure are accurate, so that the quality problem caused by modification of various designs, processes, external requirements and the like in the design process is avoided, and the accuracy of the design data is ensured;
3. the digital quantity nesting files of the left and right symmetrical parts in the hull structure are obtained through symmetrical calculation, and then the left and right symmetrical parts are simultaneously arranged and nested according to the digital quantity nesting files, so that subsequent simultaneous production is facilitated, the sorting procedure on the production site can be optimized, the manufacturing preparation is effectively ensured, and the construction period is shortened.
In conclusion, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A design method of ship port and starboard symmetrical structures is used for designing symmetrical port structures and starboard structures, and is characterized in that: the method comprises the following steps:
s1, model generation:
s11, establishing a three-dimensional design model of the port structure according to the ship design content, and simplifying to obtain a lightweight model of the port structure according to the three-dimensional design model;
s12, carrying out mirror image processing on the lightweight model of the port structure to obtain a lightweight model of the starboard structure, wherein the lightweight model of the starboard structure is in association with the lightweight model of the port structure;
s2, generating a set material file:
s21, defining production information of parts in the three-dimensional design model of the port structure according to the ship design content, generating a digital quantity nesting file of the parts according to the production information of the parts, and storing the digital quantity nesting file in a nesting file library;
s22, obtaining a digital quantity nesting file of the parts in the starboard structure through a symmetric algorithm according to the digital quantity nesting file of the parts in the port structure, and storing the digital quantity nesting file in a nesting file library;
s3, generating a part cutting file:
s31, recording two symmetrical parts in the port structure and the starboard structure as a symmetrical part group, extracting a digital quantity trepanning file of the symmetrical part group from a trepanning file library according to construction requirements, and distributing the symmetrical part group on the same parent metal model according to the digital quantity trepanning file to obtain a trepanning distribution file;
and S32, generating a corresponding part cutting file according to the nesting arrangement file.
2. The design method according to claim 1, wherein: the step S12 further includes: and during mirror image processing, automatically naming the parts in the lightweight model of the starboard structure according to the part names in the three-dimensional design model of the port structure and the part naming rules, so that the part names in the starboard structure correspond to the part names in the port structure one by one.
3. The design method according to claim 2, wherein: in the step S31, according to the part naming rule, the digital quantity package files of the two parts with corresponding names are extracted from the package file library, that is, the digital quantity package files of the symmetric part group.
4. A design method according to claim 1 or 3, characterized in that: in step S31, a plurality of symmetrical component sets are arranged on one master material model.
5. The design method according to claim 4, wherein: in the step S31, according to the optimal typesetting principle, the parts of different symmetrical part groups are subjected to adjacent nesting according to the long edge bonding mode.
6. The design method according to claim 1, wherein: in step S21, the production information includes design information, manufacturing information, and process information, and the design information includes contour information of the part.
7. The design method according to claim 1, wherein: the parts in the port structure comprise profiles and plates.
8. The utility model provides a jacking system of boats and ships port and starboard symmetrical structure which characterized in that: the nesting system is based on the design method of claim 1, comprising:
the model conversion module is used for converting the three-dimensional design model into a lightweight model and carrying out left and right mirror image processing on the lightweight model;
the production information definition module is used for defining the production information of the parts in the three-dimensional design model according to the ship design content;
the nesting file generating module is used for generating a digital quantity nesting file of the part according to the production information of the part;
the jacking file conversion module is provided with a symmetrical calculation rule and is used for symmetrically calculating the digital quantity jacking file of the part;
and the jacking shunting module is used for jacking two symmetrical parts in the port structure and the starboard structure on the same base material according to the digital jacking file.
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