Hull structure offset mounting method and system

Abstract

The invention belongs to the technical field of ship design, and provides a hull structure offset installation method and system, and the method comprises the steps: building an offset installation component discrimination rule, and defining a component offset installation processing standard; obtaining a hull design model, and selecting a target area from the hull design model; obtaining a target component to be biased from the target area according to a biased component judgment rule; acquiring offset installation associated information of the target component; and based on the offset loading processing standard, performing offset loading processing on the target component according to the offset loading associated information, and updating the hull design model. According to the method, a selection standard and an operation specification can be provided for selection and offset installation processing of the target component in the ship design process by constructing the offset installation component judgment rule and the component offset installation processing standard, manual component selection, offset installation value definition and other operations are not needed in the design process, the risk of misjudging whether the component can be offset or not can be reduced, and the ship design efficiency is improved. And the workload of designers is reduced, and the design efficiency and accuracy are improved.

Description

Technical Field

[0001] This application relates to the field of ship design technology, and in particular to a method and system for offset mounting of ship hull structures. Background Technology

[0002] With the rapid development of digital design technology in the shipbuilding industry, 3D model-based digital design technology has been widely applied in the shipbuilding field. During the construction of ship hull structures, in order to reduce the amount of beveling work during on-site welding, hull stiffeners or elbows in some low-stress areas can be de-aligned with the edges of the steel sections. Instead, some hull stiffeners or elbows can be structurally offset, changing the butt joints that require beveling to corner joints. This satisfies welding requirements while significantly reducing the amount of beveling needed.

[0003] Currently, in ship structural design based on 3D models, structural offset design is done manually. Specifically, each component needs to be manually assessed before offset processing, and the offset distance needs to be determined based on the component's region and structural specifications. This method requires construction personnel to refer to detail drawings and judge the suitability of each component for offset processing, resulting in low work efficiency and a high risk of misjudgment due to the influence of construction personnel's work quality, thus increasing design costs. Therefore, there is an urgent need to improve the existing structural offset processing methods to reduce design difficulty and improve design efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a method and system for offset mounting of hull structure, which can reduce the design difficulty of offset mounting in hull structure design and improve work efficiency.

[0005] To achieve the above and other related objectives, this application provides a method for offset mounting of a ship's hull structure, comprising the following steps: Establish rules for identifying off-center components and define standards for handling off-center components; Obtain the hull design model and select a target area from the hull design model; According to the offset component discrimination rule, the target component to be offset is obtained from the target area; Obtain the offset association information of the target component; Based on the aforementioned offset processing standard, the target component is subjected to offset processing according to the offset association information, and the hull design model is updated.

[0006] Optionally, the steps for establishing the discrimination rules for offset components include: The types of all off-center components in a ship will be sorted out to form off-center component type specifications; The profile types of the end connecting components of the offset component are sorted out to form an end profile type specification; Based on the positioning relationship of the offset components in the hull design model, establish component positioning specifications; Based on the size specifications of the end connecting components of the offset component, establish the end profile size specifications.

[0007] Optionally, the step of establishing the discrimination rule for off-center components further includes: The types of all off-center components in a ship are statistically analyzed to form an off-center type set. The off-center type specification is that the type of the hull component is located within the off-center type set. The profile types of the end-connecting components of all off-center components in a ship are statistically analyzed to form a set of end profile types. The end profile type specification is that the profile types of the end-connecting components of the hull components are located within the set of end profile types.

[0008] Optionally, in the step of establishing the discrimination rule for offset components, the component positioning specification is that the back of the plate frame where the hull component is located does not have the same positioning surface, and the end profile size specification is that the size of the end connecting component of the hull component is greater than the preset size.

[0009] Optionally, the steps for implementing the defined component offset processing standard include: Obtain the location of all offset components and form an offset region set; Set the offset calibration distance of the offset component in different areas respectively; Define the offset calibration direction of the offset component.

[0010] Optionally, the step of setting the offset calibration distance of the offset component in different regions includes: When the offset mounting component is located in the superstructure area, engine room area, chimney area and compressor room area, the offset mounting calibration distance of the offset mounting component is set to 6mm; When the offset mounting component is located in an area other than the superstructure area, the engine room area, the chimney area, and the compressor room area, the offset mounting calibration distance of the offset mounting component is set to 8mm.

[0011] Optionally, in the step of selecting a target area from the hull design model, the method for selecting the target area from the hull design model includes the whole-ship level selection method, the overall section level selection method, the segment level selection method, and the component point selection method.

[0012] Optionally, in the step of obtaining the offset association information of the target component, the offset association information includes at least the type information of the target component, the area positioning information, the connecting component information, and the panel orientation information.

[0013] Optionally, the step of performing offset processing on the target component based on the offset association information includes: Based on the offset association information and the offset processing standard, the offset distance and offset direction of the target component are obtained; The target component is subjected to offset processing based on its offset distance and offset direction.

[0014] This application also provides a hull structure offset system for performing any of the hull structure offset methods in the foregoing embodiments, including a specification acquisition module, a model acquisition module, a target acquisition module, and a model adjustment module; The specification acquisition module is used to establish rules for identifying off-center components and to define standards for handling off-center components. The model acquisition module is used to acquire the hull design model; The target acquisition module is used to select a target area from the hull design model, and according to the offset component discrimination rule, to obtain the target component to be offset from the target area, and to obtain the offset association information of the target component. The model adjustment module is used to perform offset processing on the target components in the hull design model according to the offset processing standard and the offset association information.

[0015] As described above, compared with the prior art, the hull structure offset method and system provided in this application have at least the following beneficial effects: In the method for offset mounting of ship hull structures, by constructing rules for identifying offset components and standards for handling offset mounting, selection criteria and operational specifications can be provided for the selection and offset mounting of target components during the ship design process. This eliminates the need for manual selection of components and definition of offset mounting values ​​during the offset mounting design process, effectively preventing deviations in judgment results due to the quality of manual work, significantly reducing the risk of misjudgment. Furthermore, the selection and offset mounting processes for target components can be automated, effectively reducing the workload of staff, lowering design difficulty, improving design efficiency and accuracy, and promoting the development of knowledge engineering and digital design. The ship hull structure offset mounting system is used to execute the above method and therefore also possesses the aforementioned beneficial effects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The diagram shown is a flowchart illustrating a method for offset mounting of a ship hull structure provided in Embodiment 1 of this application.

[0018] Figure 2 The diagram shows a flowchart illustrating the process of establishing the discrimination rules for offset components in the hull structure offset method provided in Embodiment 1 of this application.

[0019] Figure 3 The diagram shows a flowchart illustrating the process of defining the construction standard for offset assembly in the hull structure offset assembly method provided in Embodiment 1 of this application.

[0020] Figure 4 The image shown is a front view of a hull component before offset processing in the hull design model provided in an optional embodiment of Embodiment 1 of this application.

[0021] Figure 5 The diagram shown is a schematic diagram of the specific structure of a hull component before offset processing in the hull design model provided in an optional embodiment of Embodiment 1 of this application.

[0022] Figure 6 The image shown is a top view of a hull component before offset processing in the hull design model provided in an optional embodiment of Embodiment 1 of this application.

[0023] Figure 7 The diagram shown is a schematic diagram of the specific structure of a hull component after offset processing in the hull design model provided in an optional embodiment of Embodiment 1 of this application.

[0024] Figure 8 The image shown is a top view of a hull component after offset processing in the hull design model provided in an optional embodiment of Embodiment 1 of this application.

[0025] Figure 9 The diagram shown is a schematic diagram of the principle structure of a hull structure offset system provided in Embodiment 2 of this application.

[0026] Illustration of reference numerals in the attached diagram: 11. Specification Acquisition Module; 12. Model Acquisition Module; 13. Target Acquisition Module; 14. Model Adjustment Module. Detailed Implementation

[0027] To make the technical objectives, technical solutions, and technical effects of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with embodiments. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, referring to both fixed connections and detachable connections. Furthermore, the descriptions using terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with an implementation or example is included in at least one implementation or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0030] Example 1 This embodiment provides a method for offset mounting of ship hull structures, used to offset certain components during ship hull structure design, referring to... Figure 1 The hull structure offset mounting method in this embodiment includes the following steps: S1. Establish rules for judging off-center installation of components and define standards for handling off-center installation of components; S2. Obtain the hull design model and select the target area from the hull design model; S3. According to the offset component discrimination rule, obtain the target component to be offset from the target area; S4. Obtain the offset association information of the target component; S5. Based on the offset processing standard, the target component is offset processed according to the offset association information, and the hull design model is updated.

[0031] The hull structure deflection method in this embodiment, by constructing discrimination rules for off-center installation components and standards for component off-center installation processing, can provide selection criteria and operating procedures for the selection and off-center installation processing of target components during the ship design process. It eliminates the need for manual component selection and manual definition of off-center installation values ​​by referring to standard node drawings during the design process, significantly reducing the risk of misjudging whether a component can be off-center installed, reducing the workload of designers, lowering the design difficulty, improving design efficiency and accuracy, and promoting the development of knowledge engineering and digital design.

[0032] In step S1, refer to Figure 2The process of establishing the discrimination rule for offset components includes steps S111 to S114, as detailed below.

[0033] S111. Organize the types of all off-center mounting components in the ship to form an off-center mounting type specification; specifically, statistically analyze the types of all off-center mounting components in the ship to form an off-center mounting type set, and formulate an off-center mounting type specification based on the off-center mounting type set. Optionally, the off-center mounting type specification requires that the type of the hull component is within the off-center mounting type set, which may include, for example, flat iron, elbow plate, and other suitable component types.

[0034] S112. The profile types of the end-connecting components of the offset-mounted components are compiled to form an end-profile type specification. Specifically, the profile types of the end-connecting components of all offset-mounted components in the ship are statistically analyzed to form an end-profile type set, and an end-profile type specification is formed based on this set. Optionally, the end-profile type specification stipulates that the profile types of the end-connecting components of the hull components are located within the end-profile type set. The end-profile type set may include, for example, angle steel, bulb flat steel, and other suitable profile types.

[0035] S113. Based on the positioning relationship of the offset components in the hull design model, establish component positioning specifications; specifically, establish component positioning specifications based on whether the back of the plate frame where the offset component is located has a component with the same positioning surface. Optionally, the component positioning specifications are that the back of the plate frame where the hull component is located does not have a component with the same positioning surface as the hull component.

[0036] S114. Based on the size specifications of the end connecting components of the offset components, establish the end profile size specification; specifically, the end profile size specification stipulates that the size of the end connecting components of the hull components is greater than the preset size. Optionally, the preset size can be, for example, 160mm or other suitable values.

[0037] By establishing rules for identifying off-center components, selection criteria can be provided for identifying off-center components during the ship structure design process, thereby enabling automatic identification of off-center components. This effectively reduces the labor intensity of workers, improves the design efficiency of ship structures, and eliminates the need for manual intervention in the identification of off-center components, preventing the work quality of construction personnel from affecting the identification results and reducing the risk of misjudgment.

[0038] In step S1, refer to Figure 3 The execution of the defined component offset processing standard includes steps S121 to S123, as detailed below.

[0039] S121. Obtain the location of the off-center components and form an off-center area set; specifically, the off-center area set may include, for example, the stern area, engine room area, cargo hold double bottom area, bottom side compartment area, cargo hold side area, cargo hold deck area, cargo hold transverse bulkhead area, bow area, superstructure area, engine room canopy area, funnel area, compressor room area, and other suitable areas.

[0040] S122. Set the offset calibration distance of the offset component in different areas respectively. Optionally, the steps of performing step S122 may include, for example, setting the offset calibration distance of the offset component to 6mm or other suitable value when the offset component is located in the superstructure area, the nacelle area, the chimney area, and the compressor room area; setting the offset calibration distance of the offset component to 8mm or other suitable value when the offset component is located in areas other than the superstructure area, the nacelle area, the chimney area, and the compressor room area.

[0041] S123. Define the offset calibration direction of the offset component; optionally, the offset calibration direction may be, for example, the panel orientation direction of the end-connecting component.

[0042] By establishing standards for handling off-center component installation, operational standards can be provided for the off-center installation process during the ship structure design process, thereby enabling automatic off-center installation of off-center components. This effectively reduces the labor intensity of workers, improves the design efficiency of ship structures, and helps promote the digital development of ship design.

[0043] In step S2, the method for selecting the target area from the hull design model may include, for example, the whole ship level selection method, the overall section level selection method, the segment level selection method, and the component point selection method. Specifically, the target area can be selected from the hull design model by the whole ship selection method, the overall section or ring section selection method, the segment selection method, or the component point selection method.

[0044] Optionally, the entire ship can be selected during the initial selection, and different selection methods can be used subsequently as needed to obtain the target area.

[0045] In step S3, according to the offset component discrimination rules, each hull component in the target area of ​​the hull design model is discriminated to determine whether it is a target component to be offset. Optionally, when a hull component simultaneously meets the offset type specification, end profile type specification, component positioning specification, and end profile size specification, the hull component is determined to be a target component.

[0046] In step S4, the step of obtaining the offset association information of the target component includes at least the target component's type information, area positioning information, connecting component information, and panel orientation information. Specifically, the target component's type information reveals its type; its area positioning information reveals the area where the target component is located and its positioning relationship within the hull design model; its connecting component information reveals the profile type and dimensions of the end connecting components; and its panel orientation information reveals the panel orientation direction of the end connecting components.

[0047] In step S5, the step of performing offset processing on the target component based on the offset association information includes: obtaining the offset distance and offset direction of the target component based on the offset association information and offset processing standards; and performing offset processing on the target component based on the offset distance and offset direction. After completing the offset processing of the target component, the hull design model can be updated in real time to obtain the latest hull design model, and the above steps can be repeated until the offset processing of all target components in the hull design model is completed; alternatively, the offset processing of the target components can be completed in batches, and then the hull design model can be updated to obtain the latest hull design model, until the offset processing of all target components in the hull design model is completed.

[0048] In an optional embodiment, taking a hull component coded 9010-000-B15 in the hull design model as an example, the system identifies this hull component as an elbow plate, conforming to the offset type specification in the offset component identification rules. Its end-connecting component is a 200mm high bulb flat steel, conforming to the end profile type and size specifications in the offset component identification rules. There are no other components on the back of this hull component, conforming to the component positioning specifications in the offset component identification rules. The area where this component is located is the superstructure area, with an offset distance of 6mm, and the offset direction is the direction the end-connecting component panel faces. The hull component before offset processing is as follows: Figure 4 , Figure 5 and Figure 6 As shown, the hull components after offset installation are as follows: Figure 7 and Figure 8 As shown.

[0049] In summary, the hull structure deflection method of this embodiment, by constructing discrimination rules for offset components and standards for component offset processing, can provide selection criteria and operational specifications for the selection and offset processing of target components during the ship design process. It eliminates the need for manual selection of components and definition of offset values ​​during the offset design process, effectively preventing the influence of manual operation quality on the judgment results, significantly reducing the risk of misjudgment. At the same time, the selection of target components and offset processing can be carried out automatically, which can effectively reduce the workload of staff, reduce design difficulty, improve design efficiency and accuracy, and promote the development of knowledge engineering and digital design.

[0050] Example 2 This embodiment provides a hull structure offset system for executing any of the hull structure offset methods in Embodiment 1, referring to... Figure 9 The hull structure offset system in this embodiment includes a specification acquisition module 11, a model acquisition module 12, a target acquisition module 13, and a model adjustment module 14.

[0051] The specification acquisition module 11 is used to establish discrimination rules for off-center components and define standards for handling off-center components. Optionally, the specification acquisition module 11 includes a discrimination rule construction unit and an off-center standard construction unit. The rule construction unit is used to establish discrimination rules for off-center components, and the off-center standard construction unit is used to define standards for handling off-center components.

[0052] The model acquisition module 12 is used to acquire the hull design model, and the target acquisition module 13 is used to select a target area from the hull design model, and according to the offset component discrimination rule, to acquire the target component to be offset from the target area, and to acquire the offset association information of the target component. Optionally, the target acquisition module 13 includes a region selection unit, a component selection unit, and an information acquisition unit. The region selection unit is used to select a target area from the hull design model, the component selection unit is used to acquire the target component to be offset from the target area, and the information acquisition unit is used to acquire the offset association information of the target component.

[0053] The model adjustment module 14 is used to perform offset processing on the target components in the hull design model 11 according to the offset processing standard and offset association information, and at the same time update the hull design model.

[0054] The hull structure offset system of this embodiment is used to execute any of the hull structure offset methods in Embodiment 1, and therefore has the same beneficial effects as Embodiment 1.

[0055] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify, alter, or combine the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A method for offset mounting of a ship's hull structure, characterized in that, Includes the following steps: Establish rules for identifying off-center components and define standards for handling off-center components; Obtain the hull design model and select a target area from the hull design model; According to the offset component discrimination rule, the target component to be offset is obtained from the target area; Obtain the offset association information of the target component; Based on the aforementioned offset processing standard, the target component is subjected to offset processing according to the offset association information, and the hull design model is updated.

2. The method for offset mounting of ship hull structure according to claim 1, characterized in that, The steps for establishing the discrimination rules for off-center components include: The types of all off-center components in a ship will be sorted out to form off-center component type specifications; The profile types of the end connecting components of the offset component are sorted out to form an end profile type specification; Based on the positioning relationship of the offset components in the hull design model, establish component positioning specifications; Based on the size specifications of the end connecting components of the offset component, establish the end profile size specifications.

3. The method for offset mounting of ship hull structure according to claim 2, characterized in that, The steps for establishing the discrimination rules for off-center components also include: The types of all off-center components in a ship are statistically analyzed to form an off-center type set. The off-center type specification is that the type of the hull component is located within the off-center type set. The profile types of the end-connecting components of all off-center components in a ship are statistically analyzed to form a set of end profile types. The end profile type specification is that the profile types of the end-connecting components of the hull components are located within the set of end profile types.

4. The method for offset mounting of hull structure according to claim 2, characterized in that, In the step of establishing the discrimination rule for off-center components, the component positioning specification is that the back of the plate frame where the hull component is located does not have the same positioning surface, and the end profile size specification is that the size of the end connecting component of the hull component is greater than the preset size.

5. The method for offset mounting of ship hull structure according to claim 1, characterized in that, The steps for implementing the defined component offset handling standard include: Obtain the location of all offset components and form an offset region set; Set the offset calibration distance of the offset component in different areas respectively; Define the offset calibration direction of the offset component.

6. The method for offset mounting of hull structure according to claim 5, characterized in that, The steps of setting the offset calibration distance of the offset component in different regions include: When the offset mounting component is located in the superstructure area, engine room area, chimney area and compressor room area, the offset mounting calibration distance of the offset mounting component is set to 6mm; When the offset mounting component is located in an area other than the superstructure area, the nacelle area, the chimney area, and the compressor room area, the offset mounting calibration distance of the offset mounting component is set to 8mm.

7. The method for offset mounting of hull structure according to claim 1, characterized in that, In the step of selecting a target region from the hull design model, the methods for selecting a target region from the hull design model include the whole-ship level selection method, the overall section level selection method, the segment level selection method, and the component point selection method.

8. The method for offset mounting of hull structure according to claim 1, characterized in that, In the step of obtaining the offset association information of the target component, the offset association information includes at least the type information, area positioning information, connecting component information, and panel orientation information of the target component.

9. The method for offset mounting of ship hull structure according to claim 1, characterized in that, The steps of performing offset processing on the target component based on the offset association information include: Based on the offset association information and the offset processing standard, the offset distance and offset direction of the target component are obtained; The target component is subjected to offset processing based on its offset distance and offset direction.

10. A hull structure offset mounting system for performing the hull structure offset mounting method according to any one of claims 1 to 9, characterized in that, It includes a specification acquisition module, a model acquisition module, a target acquisition module, and a model adjustment module; The specification acquisition module is used to establish rules for identifying off-center components and to define standards for handling off-center components. The model acquisition module is used to acquire the hull design model; The target acquisition module is used to select a target area from the hull design model, and according to the offset component discrimination rule, to obtain the target component to be offset from the target area, and to obtain the offset association information of the target component. The model adjustment module is used to perform offset processing on the target components in the hull design model according to the offset processing standard and the offset association information.

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