A method, apparatus, storage medium and product for welding correction of a ship

Abstract

The application discloses a welding correction method and device for a ship, a storage medium and a product, and relates to the field of shipbuilding. The method comprises the following steps: according to the segmentation type of a segmentation area, surveying an initial position point of a bilge keel pad on the segmentation area; measuring an initial position point deviation value of the bilge keel pad from a target pad of a segmentation frame in the segmentation area; correcting the initial position point of the bilge keel pad according to the target pad deviation value to obtain a target position point of the bilge keel pad; if the bilge keel pad has been welded on the segmentation area according to the target position point, detecting the actual position point of the bilge keel pad welded on the segmentation area, and the actual included angle between the thickness surface of the web plate and the upper surface of the bilge keel pad; generating a welding correction measure, and the content of the welding correction measure is that the bilge keel pad is corrected from the actual position point to the target position point, and the web plate is corrected from the actual included angle to a target included angle. The twice correction mechanism improves the installation precision of the bilge keel assembly position.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of shipbuilding technology, and in particular to a welding repair method, equipment, storage medium and product for ships. Background Technology

[0002] In shipbuilding, the bilge keel, as one of the load-bearing components of the hull, is precisely installed to enhance the structural strength of the ship. Because the hull is constructed in sections, the dimensions and shapes of different sections may vary, leading to deviations in the welding positions of the bilge keel pads and the web plates, thus affecting the overall construction of the ship.

[0003] Traditional methods for positioning bilge keel pads rely heavily on manual experience and traditional measuring tools, such as using scribing and measuring tapes to determine the position of the bilge keel pads. This positional data is then directly used for welding. However, the shapes of different sections of a ship's bilge system vary, and deformation may occur during welding of these sections (including the bilge keel pads). Directly relying on the traditionally determined positional data for welding may result in significant deviations between the welded bilge keel pads and the ship's design drawings. This could lead to misalignment between the bilge keel and the section during closure, affecting the ship's structural quality. Summary of the Invention

[0004] This invention provides a welding correction method, equipment, storage medium, and product for ships, to improve the accuracy of bilge keel installation.

[0005] In a first aspect, embodiments of the present invention provide a welding correction method for a ship, the ship including a bilge keel pad, a web, an outer plating, and a bilge; the bilge has multiple segmented regions; the web is welded to the bilge keel pad, a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel pad, and the upper surface of the bilge keel pad is the opposite surface of the bilge keel pad in contact with the outer plating; the method includes:

[0006] Based on the segmentation type of the segmented area, mark the initial position points of the bilge keel pads on the segmented area;

[0007] In the segmented region, the deviation value of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented region is measured;

[0008] The initial position of the bilge keel pad is corrected based on the target pad deviation value to obtain the target position of the bilge keel pad;

[0009] If the bilge keel pad has been welded to the segmented area according to the target position point, then the actual position point of the bilge keel pad welded to the segmented area, and the actual included angle formed between the thickness surface of the web and the upper surface of the bilge keel pad are detected respectively.

[0010] A welding correction measure is generated, wherein the welding correction measure includes correcting the bilge keel pad from the actual position point to the target position point, and correcting the web plate from the actual included angle to the target included angle.

[0011] Secondly, embodiments of the present invention also provide a welding correction device for a ship, the ship including a bilge keel pad, a web, an outer plating, and a bilge; the bilge has multiple segmented regions; the web is welded to the bilge keel pad, a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel pad, the upper surface of the bilge keel pad is the opposite surface of the bilge keel pad in contact with the outer plating, and the device includes:

[0012] The initial position point mapping module is used to map the initial position points of the bilge keel pads on the segmented area according to the segmentation type of the segmented area;

[0013] The target pad deviation measurement module is used to measure the deviation value of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented area.

[0014] The target position point correction module is used to correct the initial position point of the bilge keel pad based on the target pad deviation value to obtain the target position point of the bilge keel pad.

[0015] The actual point acquisition module is used to detect the actual position point of the bilge keel pad welded to the segmented area according to the target position point, and the actual included angle formed between the thickness surface of the web plate and the upper surface of the bilge keel pad, respectively.

[0016] A welding correction measure generation module is used to generate welding correction measures, the content of which includes correcting the bilge keel pad from the actual position point to the target position point, and correcting the web plate from the actual included angle to the target included angle.

[0017] Thirdly, embodiments of the present invention also provide a computer device, the computer device comprising:

[0018] One or more processors;

[0019] Storage device for storing one or more programs;

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement the welding correction method for ships as provided in the first aspect of the present invention.

[0021] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the welding correction method for ships as provided in the first aspect of the present invention.

[0022] Fifthly, embodiments of the present invention also provide a computer program product, the computer program product comprising a computer program, which, when executed by a processor, implements the welding correction method for ships as provided in the first aspect of the present invention.

[0023] In this embodiment of the invention, the ship includes a bilge keel pad, a web, an outer hull, and a bilge section. The bilge section has multiple segmented areas. The web is welded to the bilge keel pad, and a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel pad. The upper surface of the bilge keel pad is the opposite surface in contact with the outer hull. The initial position points of the bilge keel pad are marked on the segmented areas according to their segmentation type. Within each segmented area, the deviation of the initial position point of the bilge keel pad from the target pad of the segmented frame is measured. The initial position of the bilge keel pad is corrected based on the target pad deviation value to obtain the target position of the bilge keel pad. If the bilge keel pad has been welded to the segmented area according to the target position, the actual position of the bilge keel pad welded to the segmented area and the actual included angle formed between the thickness surface of the web and the upper surface of the bilge keel pad are detected respectively. Welding correction measures are generated, which involve correcting the bilge keel pad from the actual position to the target position and correcting the web from the actual included angle to the target included angle. By determining the initial position of the bilge keel pad according to different segmented area types, the initial position provides a preliminary reference benchmark for other components in the entire segmented area, providing a starting point for subsequent adjustments and corrections. This preliminary reference benchmark helps ensure that the assembly of the entire structure has a roughly uniform standard, avoiding large deviations from the beginning. Using each segmented frame as a reference, the target deviation value of the bilge keel pad is calculated. This deviation is used to compensate for unavoidable welding deformation and assembly tolerances during segment construction, ensuring that the final installation position of the bilge keel on the hull is as close as possible to the ideal design state. Based on this deviation value, the initial position point of the bilge keel pad is corrected to reduce structural errors and minimize the impact of construction deformation and other factors on bilge keel positioning, improving the positioning accuracy of the bilge keel pad and ensuring that its actual installation position on the hull meets the ship's design requirements. After the bilge keel pad is welded, the actual position point and actual included angle are collected to verify the accuracy of the welding process, ensuring that the final structure meets design requirements and preventing errors that could lead to unevenness or instability in the hull structure. Corresponding welding correction measures are generated to correct the actual position point and actual included angle, ensuring that the final installation position and angle of the bilge keel meet the design and process specifications. This two-stage correction mechanism improves the installation accuracy of the bilge keel components and enhances the stability of the ship's structure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A flowchart illustrating a welding correction method for a ship according to Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a bilge keel provided in Embodiment 1 of the present invention;

[0027] Figure 3 This is a structural block diagram of a welding correction device for a ship provided in Embodiment 2 of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of a computer device provided in Embodiment 3 of the present invention. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate so that the embodiments of the invention described herein can cover implementations in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Example 1

[0032] See Figure 1 The diagram illustrates a flowchart of a welding correction method for a ship according to Embodiment 1 of the present invention. This embodiment is applicable to situations where the position of the bilge keel welding needs to be calibrated twice during bilge keel welding. This method can be executed by a welding correction device for the ship, which can be implemented in hardware and / or software and can be configured in a computer device. Figure 1 As shown, the method includes:

[0033] Step 101: Based on the segmentation type of the segmented area, mark the initial position points of the bilge keel pads on the segmented area.

[0034] In shipbuilding, sectional areas refer to different parts or blocks of the hull. Each sectional area typically includes a structural section of the hull, such as the bilge, bow, or stern. Each sectional area has its own independent frame and support system within the overall hull structure, ensuring the strength, stability, and load distribution of the ship in different areas. This sectional design effectively organizes the shipbuilding process and ensures precise alignment of the hull structure. In this embodiment, the sectional area refers to the bilge section.

[0035] Ships typically refer to large vessels used for marine operations, such as government vessels, commercial vessels, container ships, and special-purpose vessels. Ships include bilge keel plates, web plates, hull plates, and bilge sections; the bilge sections have multiple segmented areas.

[0036] like Figure 2 The diagram shown is a structural schematic of the bilge keel. Figure 2 The hull includes an outer plating 201, a bilge keel pad 202, and a web 203. The web 203 is welded to the bilge keel pad 202. The thickness surface of the web and the upper surface of the bilge keel pad form a target angle (90 degrees). This target angle is designed to ensure the connection strength and stability between the web and the bilge keel pad. A precise target angle ensures the overall stability of the hull. The upper surface of the bilge keel pad 202 is the opposite surface that contacts the outer plating 201. The bilge keel pad 202 and the web 203 form the bilge keel assembly. The lower surface of the bilge keel pad 202 is welded to the outer plating 201.

[0037] Bilge keel pads are components used for support and positioning in shipbuilding, typically located at the bilge of the vessel. The bilge keel itself is the main longitudinal support structure at the bottom of the hull, while the bilge keel pads help to secure and adjust it during construction, ensuring the bilge keel's coordination and stability with the rest of the hull.

[0038] The web is a longitudinal plate in a ship's structure, typically located at the bilge, to enhance the hull's strength and stability. Connected to the bilge keel pads, the web's function is to distribute loads by bearing stress, thus maintaining the stability of the hull structure.

[0039] Ship hull plating refers to the plates covering the exterior of a ship. Ship hull plating is usually made of steel plates or other materials, protecting the hull from the effects of the external environment and increasing the strength of the hull.

[0040] In this embodiment, the initial position of the bilge keel pad is determined according to different segment area types. The initial position point provides a preliminary reference benchmark for other components in the entire segment area, providing a starting point for subsequent adjustments and corrections. This preliminary reference benchmark helps ensure that the assembly of the entire ship structure can have a roughly uniform standard, avoiding large deviations in welding work from the beginning.

[0041] For example, bilge keel pads include flat plates and zigzag plates that adapt to the contours of segmented areas; flat plates are suitable for simpler, straight sections of the hull structure, have a fixed, uniform shape, and can simplify the welding and assembly process; while zigzag plates are customized according to the complex contours of the hull and are suitable for areas that require bending, curves, or zigzag connections, providing greater flexibility and precision, and ensuring structural fit and strength.

[0042] In one embodiment of the present invention, step 101 may include the following steps:

[0043] Step 1011: If the segmentation type of the segmented area is straight, then query the distance of the pads configured for the ship.

[0044] In this embodiment, during shipbuilding, different sections may have different structures and requirements. When a section is straight, the required bilge keel spacer spacing is generally fixed and uniform. Checking the spacer spacing helps determine the placement of spacers in various parts of the hull, ensuring that subsequent welding and splicing processes can be carried out accurately to maintain the structural stability of the hull.

[0045] Straight sections typically refer to areas within the bilge region of a ship that do not exhibit significant surface curvature changes and are designed as relatively straight sections. These sections generally have simpler structures, are easier to weld, and do not involve complex curvature variations. Common types of these sections include double-bottom sections, side sections, deck sections, and transverse bulkhead sections.

[0046] Double bottom section: Located at the bottom of the hull, it is mainly used to enhance the strength and structural stability of the hull, especially in terms of load-bearing capacity and resistance to water pressure.

[0047] Side sections: Located on both sides of the hull, these sections are usually relatively straight and are used to install side frames and support structures to ensure the lateral stability of the hull.

[0048] Deck sections: usually located on the upper part of the hull, responsible for supporting structures such as the deck frame, helping to distribute the weight of the hull and providing a stable working platform.

[0049] Transverse bulkhead sections: Used in the internal structure of the hull, mainly serving to isolate different compartments, ensure their independence, and provide internal support for the ship.

[0050] Step 1012: On the segmented area, at each interval of the pad, mark the initial position point of the scribing plane plate.

[0051] In this embodiment, based on the determined pad distance, the initial position points of the planar plates are marked within the segmented area at predetermined intervals (i.e., pad distances). While the initial position points may not be entirely accurate in some cases, the main purpose of marking them is to ensure the most precise positioning possible in subsequent operations. Welding the bilge keel pads involves the coordination of multiple process steps. Marking the initial position points provides a reference framework for subsequent welding, splicing, and other work. Even if there are some errors in the initial marking, subsequent correction and fine-tuning steps can compensate for these inaccuracies.

[0052] For example, the pad spacing is typically 3 meters, with an initial position point for the bilge keel pad set every 3 meters. This ensures the accuracy and convenience of the chalk line operation, providing an initial reference position for subsequent installation and welding processes. Chalking is a common construction technique that uses ropes or other tools to pull lines at designated locations to determine installation points or alignment reference lines. On straight, segmented areas, chalk line operation is relatively simple, allowing for precise marking of the required installation positions on the surface.

[0053] Step 1013: If the segmentation type of the segmented area is zigzag, then query the rib information of the ship's bilge that is related to the segmented area.

[0054] Tortuous sections have complex curved shapes, including single-curvature and double-curvature bends, requiring high precision and complex welding processes. These sections typically appear in the curved parts of the hull, especially in special areas of the bow, stern, and bottom. Common types of these sections include the stern engine room section, the bow linear section, and the double-bottom section (both bow and stern).

[0055] Stern engine room section: Located at the stern of the hull, it typically has a complex curved shape and requires high-precision welding and assembly processes.

[0056] Bow line section: Located at the front of the hull, it is usually designed with a relatively sharp shape to ensure the hull's streamline and dynamic performance.

[0057] Double bottom sections (bow and stern): These sections are located near the bow or stern of the ship and typically involve complex structures and welding processes.

[0058] In this embodiment, unlike the straight segmented areas, the zigzag segmented areas involve more complex hull curves, requiring the rib information to determine the initial position of the pad. The hull ribs are part of the hull support structure; querying rib information provides data reference for the subsequent placement of the zigzag plates, ensuring that the zigzag plates match the curve shape of the hull's outer plating and avoiding irregular splicing or structural mismatches.

[0059] For example, by consulting the ship's design drawings, one can see that the design drawings indicate the precise location and dimensions of each component of the ship, as well as the distribution of the ship's ribs. The design drawings are the blueprint of the entire ship's structure and serve as a direct reference for various welding and installation tasks.

[0060] Based on the design drawings, the arc length data of each rib in the segmented area is obtained. These drawings typically contain detailed information about each rib. A rib usually refers to the longitudinal frame of the internal supporting structure of the hull, and it determines the strength and stability of the hull. By obtaining the arc length data of each rib in the tortuous segmented area of ​​the bilge, the distribution of the ribs on the hull's curved surface can be determined. The arc length data helps in calculating the position and shape of each rib relative to the hull's outer plating.

[0061] Arc length data is used to calculate the rib position information of each ship's rib on the outer plating. After obtaining the arc length data, the marking personnel need to extrapolate the position of the ship's rib from the hull structure to the non-theoretical surface of the outer plating. This is because the ship's outer plating is usually not flat; it has a complex curved shape. To ensure that the ship's rib accurately contacts the outer plating, the ship's rib position is converted from its inner position to its actual position on the outer plating (i.e., rib position information).

[0062] Step 1014: Based on the rib information, delineate the initial position points of the meandering plates in the segmented area.

[0063] In this embodiment, the initial position points of the zigzag plates are marked based on the acquired rib information. The zigzag plates are then positioned to accommodate the complex structure of the hull. By marking these initial position points, the relative position of each bilge keel pad within the overall hull structure is ensured to be correct. This not only helps maintain the stability of the ship's structure but also optimizes subsequent processing and installation steps, providing an initial reference benchmark for subsequent bilge keel pad position adjustments.

[0064] For example, querying baselines for a ship's configuration; common baselines include the hull centerline, the waterline, or other key design reference lines. These baselines will serve as reference points to determine the location of each ship's hull section.

[0065] The rib position information is corrected based on the baseline. After obtaining the theoretical position of the ribs after reverse calculation (i.e., obtaining the rib position information), the marking personnel need to use a measuring tape method to perform actual measurements based on the baseline. The rib positions determined in the design drawings may deviate from the actual positions. The position of each rib on the ship's outer plating is calibrated from the baseline using measuring tools to complete the correction of the rib position information. The rib position information includes the position of the ribs on the ship's outer plating and the set angle of the ribs, etc.

[0066] Once the correction is complete, the initial position points of the zigzag shims are marked between two adjacent ship ribs based on the rib position information. By correcting the rib position information, deviations that may occur between the design drawings and the actual construction process can be compensated for, ensuring that accurate initial position points are obtained when marking zigzag shims between two adjacent ship ribs.

[0067] Step 102: In the segmented area, measure the deviation of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented area.

[0068] In this embodiment, due to the complex structure of the ship, positional deviations may occur during the design and actual welding process of the segmented areas. These deviations may cause the hull structure to fail to meet design requirements, thereby affecting the overall strength and stability of the ship. Therefore, by measuring the deviation value of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented area, the target pad deviation value is used to correct the initial position point of the bilge keel pad in the segmented area, ensuring that the welding position of the bilge keel pad meets the design requirements, improving the accuracy of welding work and the overall performance of the ship.

[0069] In one embodiment of the present invention, step 102 may include the following steps:

[0070] Step 1021: Collect the frame location points of the segmented frames in each segmented region.

[0071] In this embodiment, the frame location points of each segment area are obtained, including transverse ribs, longitudinal girder and T-shaped structural points, to ensure that all frame location points can be accurately recorded during the measurement and correction process. These frame location points are important reference points for subsequent calculation of pad deviation, which can help engineers clearly understand the relative positional relationship between the bilge keel pad and the segment frame, and thus provide a basis for subsequent adjustments.

[0072] For example, a total station can be used to collect data on the bilge of a ship. A total station is a precision instrument used to measure distances, angles, and elevations. Combining electronic rangefinders, electronic theodolites, and computer technology, a total station can quickly and accurately acquire the three-dimensional coordinate data of a target object. In data acquisition for the bilge of a ship, a total station can ensure the accuracy and stability of the hull construction by precisely measuring the frame positions of each segment, the installation positions of the bilge keel pads, and the angle information between the web and the bilge keel pads, thus assisting construction personnel in accurate calibration and installation.

[0073] Step 1022: Query the ship's design drawings.

[0074] In this embodiment, the design drawings serve as the basic documents for ship construction and repair. They contain detailed design data about the hull structure. Querying the design drawings can be used to calculate the deviation between the actual locations in the actual ship construction and the theoretical locations in the design drawings, providing a basis for deviation compensation in the actual ship construction.

[0075] Step 1023: Calculate the positional deviation between the initial position of the bilge keel pad and the theoretical position of the bilge keel pad in the design drawings, and use it as the pad deviation value.

[0076] In this embodiment, the theoretical position data of the bilge keel pads in the design drawings are obtained as a comparison standard. The deviation between the initial position point and the theoretical position point is calculated, which clarifies the error range of the hull during construction, i.e., the positional difference between the actual bilge keel pads and the design requirements, and serves as the pad deviation value. This pad deviation value provides a quantitative basis for subsequent corrective measures, helping engineers determine whether adjustments are needed and the extent of such adjustments.

[0077] Step 1024: Correct the pad deviation value based on the frame position points of the segmented frame to obtain the target pad deviation value.

[0078] In this embodiment, the calculated bilge keel plate deviation value can be accurately corrected by referring to the frame position points of the segmented frame. The frame position points indicate the deformation that occurred during welding of the segmented frame. Since the bilge keel plate is welded to the segmented frame, it needs to follow the offset of the segmented frame with the frame position points as a reference to ensure that the relative position of the bilge keel plate and the segmented frame remains unchanged. Therefore, correcting the deviation value based on the position data of the segmented frame can more accurately locate the target position of the bilge keel plate, ensuring that the final corrected hull structure meets the design standards.

[0079] For example, the deformation components of the segmented frame are calculated based on the measured frame location points and the theoretical frame location points of the segmented frame in the design drawings. The deformation components of the segmented frame are determined by comparing the actual measured frame location points with the ideal frame location points in the design drawings to identify the deviations caused by unstable factors during construction (such as temperature changes, material stress, etc.), thereby accurately quantifying the degree of frame deformation.

[0080] The difference between the pad deviation value and the deformation component is taken as the local error component of the bilge keel pad; the negative of the local error component is taken as the target pad deviation value.

[0081] For example, suppose the initial position of a certain bilge keel pad is (3.2, 4.3, 0.5) as marked on the site. This initial position is marked on the segmented frame and has already shifted with the segmented frame. The theoretical position of the bilge keel pad in the design drawings is (1, 1, 1). The difference between the initial position and the theoretical position is taken as the pad deviation value (2.2, 3.3, -0.5).

[0082] The deformation components of the segmented frame are calculated by comparing the measured frame location points with the theoretical frame location points of the segmented frame in the design drawings. Assuming the deformation components of the transverse ribs are (1, 2, 0), the deformation components of the longitudinal girder are (2, 3, -1), and the deformation components of the T-shaped structural points are (1.5, 2.5, -0.5), the deformation components of the segmented frame corresponding to the bilge keel pad can be obtained as (1.5, 2.5, -0.5) by weighted average method.

[0083] The bilge keel deviation value is derived from the deformation component of the segmented frame and the local error component during bilge keel hull marking. The difference between the bilge keel deviation value and the deformation component is taken as the local error component (0.7, 0.8, 0) for bilge keel hull marking. The negative value of this local error component is taken as the target bilge keel deviation value. The negative value is used because if the x-axis of the local error component is offset to the right by 0.7, the initial position of the bilge keel hull needs to be compensated to the left by 0.7 to eliminate the error. The initial position of the bilge keel hull consists of the theoretical position point, the deformation component, and the local error component. Since the segmented frame deforms and the bilge keel hull is welded into the segmented frame, the welding position of the bilge keel hull needs to be adjusted according to the offset of the segmented frame to ensure that the welding position of the bilge keel hull is consistent with the relative position of the segmented frame. Therefore, compensation of the initial position point eliminates the local error component.

[0084] Step 103: Correct the initial position of the bilge keel pad based on the target pad deviation value to obtain the target position of the bilge keel pad.

[0085] In this embodiment, due to the complex structure of the segmented areas and the welding process during shipbuilding, positional deviations may occur. Therefore, the initial position of the bilge keel pad is corrected by calculating the target pad deviation value to obtain the target position of the bilge keel pad. This effectively avoids the final structure failing to meet design specifications, thus affecting the strength and stability of the hull. Correcting the initial position of the bilge keel pad not only improves the manufacturing precision of the ship but also prevents hull deformation or other safety hazards caused by improper installation. It ensures that welding work achieves the expected results in every detail of the entire hull structure, guaranteeing the final high quality and high safety of the ship.

[0086] Step 104: If the bilge keel pads have been welded to the segmented areas according to the target position points, then detect the actual position points of the bilge keel pads welded to the segmented areas, as well as the actual included angle formed between the thickness surface of the web plate and the upper surface of the bilge keel pads.

[0087] In this embodiment, it is ensured that the bilge keel pads accurately conform to design requirements after welding. After the bilge keel pads are welded to the target position, the actual position of the bilge keel pads in the segmented area is checked to verify whether it matches the target position. This step aims to verify the accuracy of the bilge keel pads' positioning after welding and prevent structural deviations due to welding errors. Secondly, it is checked whether the actual angle formed between the thickness surface of the web and the upper surface of the bilge keel pads meets design requirements. Deviations in the actual angle may affect the strength and stress distribution of the web structure, and may even affect the ship's navigation performance. Therefore, by checking the actual position and the actual angle, potential welding problems can be detected and corrected in a timely manner, ensuring that the structural quality of the hull meets design specifications, thereby improving overall reliability and safety.

[0088] Step 105: Generate welding correction measures.

[0089] In this embodiment, when a deviation is detected between the actual position of the bilge keel pad and the actual angle of the web after welding, appropriate welding correction measures are generated to correct the position of the bilge keel pad and the actual angle of the web, ensuring the accuracy and stability of the hull structure. During welding, the position of the bilge keel pad may deviate, affecting the overall strength, stress distribution, and navigation performance of the hull. By generating welding correction measures, the bilge keel pad is corrected from its actual position to the target position, ensuring that its positioning meets design requirements. When a deviation in the actual angle of the web is detected, welding correction measures are generated to correct the web from its actual angle to the target angle. The angle between the web and the bilge keel pad affects the stability and mechanical properties of the hull structure. Failure to perform correction operations may result in a structure that does not meet standards, increasing safety risks during subsequent use.

[0090] For example, if the deviation between the actual position and the target position of the bilge keel pad after welding is greater than or equal to a preset first deviation threshold, which is usually 3 mm, the distance between the actual position and the target position can be calculated using the Euclidean distance formula, and then welding correction measures are generated. The welding correction measures include opening the weld joints of the bilge keel pad in the segmented section, moving the bilge keel pad from the actual position to the target position, and if the movement is completed, welding the bilge keel pad to the target position.

[0091] If the deviation between the actual position and the target position of the bilge keel pad after welding is less than a preset first deviation threshold, and the deviation between the actual included angle and the target included angle is greater than a preset second deviation threshold (typically 5 mm), then welding correction measures are generated. The welding correction measures include heating and softening the weld joint between the bilge keel pad and the web plate using a flame of specified intensity, moving the web plate from the actual included angle to the target included angle, and welding the connection between the bilge keel pad and the web plate after the movement is completed. This welding is a repair weld on the weld joint between the bilge keel pad and the web plate to enhance the stability of the connection between the bilge keel pad and the web plate.

[0092] In this embodiment of the invention, the ship includes a bilge keel pad, a web, an outer hull, and a bilge section. The bilge section has multiple segmented areas. The web is welded to the bilge keel pad, and a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel pad. The upper surface of the bilge keel pad is the opposite surface in contact with the outer hull. The initial position points of the bilge keel pad are marked on the segmented areas according to their segmentation type. Within each segmented area, the deviation of the initial position point of the bilge keel pad from the target pad of the segmented frame is measured. The initial position of the bilge keel pad is corrected based on the target pad deviation value to obtain the target position of the bilge keel pad. If the bilge keel pad has been welded to the segmented area according to the target position, the actual position of the bilge keel pad welded to the segmented area and the actual included angle formed between the thickness surface of the web and the upper surface of the bilge keel pad are detected respectively. Welding correction measures are generated, which involve correcting the bilge keel pad from the actual position to the target position and correcting the web from the actual included angle to the target included angle. By determining the initial position of the bilge keel pad according to different segmented area types, the initial position provides a preliminary reference benchmark for other components in the entire segmented area, providing a starting point for subsequent adjustments and corrections. This preliminary reference benchmark helps ensure that the assembly of the entire structure has a roughly uniform standard, avoiding large deviations from the beginning. Using each segmented frame as a reference, the target deviation value of the bilge keel pad is calculated. This deviation is used to compensate for unavoidable welding deformation and assembly tolerances during segment construction, ensuring that the final installation position of the bilge keel on the hull is as close as possible to the ideal design state. Based on this deviation value, the initial position point of the bilge keel pad is corrected to reduce structural errors and minimize the impact of construction deformation and other factors on bilge keel positioning, improving the positioning accuracy of the bilge keel pad and ensuring that its actual installation position on the hull meets the ship's design requirements. After the bilge keel pad is welded, the actual position point and actual included angle are collected to verify the accuracy of the welding process, ensuring that the final structure meets design requirements and preventing errors that could lead to unevenness or instability in the hull structure. Corresponding welding correction measures are generated to correct the actual position point and actual included angle, ensuring that the final installation position and angle of the bilge keel meet the design and process specifications. This two-stage correction mechanism improves the installation accuracy of the bilge keel components and enhances the stability of the ship's structure.

[0093] Example 2

[0094] Figure 3This is a schematic diagram of a welding correction device for a ship according to Embodiment 2 of the present invention. The ship includes a bilge keel plate, a web, an outer hull, and a bilge. The bilge has multiple segmented areas. The web is welded to the bilge keel plate, and a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel plate. The upper surface of the bilge keel plate is the opposite surface of the bilge keel plate that contacts the outer hull. Figure 3 As shown, the device includes:

[0095] The initial position point surveying module 301 is used to survey the initial position points of the bilge keel pads on the segmented area according to the segmentation type of the segmented area.

[0096] The target pad deviation measurement module 302 is used to measure the deviation value of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented area.

[0097] The target position point correction module 303 is used to correct the initial position point of the bilge keel pad based on the target pad deviation value to obtain the target position point of the bilge keel pad.

[0098] The actual point acquisition module 304 is used to detect the actual position point of the bilge keel pad welded on the segmented area according to the target position point, and the actual included angle formed between the thickness surface of the web plate and the upper surface of the bilge keel pad if the bilge keel pad has been welded on the segmented area according to the target position point.

[0099] The welding correction measure generation module 305 is used to generate welding correction measures, the content of which is to correct the bilge keel pad from the actual position point to the target position point, and to correct the web plate from the actual included angle to the target included angle.

[0100] In one embodiment of the present invention, the type of bilge keel pad includes a flat plate and a zigzag plate adapted to the contour of the segmented area; the initial position point surveying module 301 includes:

[0101] The pad distance query module is used to query the pad distance configured for the ship if the segmentation type of the segmented area is straight.

[0102] A planar plate marking module is used to mark the initial position points of the planar plates at intervals of the pad distance on the segmented area;

[0103] The rib information query module is used to query the rib information of the ship's ribs related to the segmented area if the segmented area is of the zigzag type.

[0104] The zigzag plate delineation module is used to delineate the initial position points of the zigzag plates in the segmented area based on the rib information.

[0105] In one embodiment of the present invention, the rib information query module includes:

[0106] The ship drawing query module is used to query the design drawings of the aforementioned ship;

[0107] The arc length data acquisition module is used to acquire the arc length data of each ship rib in the segmented area based on the design drawings.

[0108] The rib information calculation module is used to calculate the rib information of each of the ship's ribs on the ship's outer plating using the arc length data.

[0109] In one embodiment of the present invention, the tortuous plate surveying module includes:

[0110] The baseline query module is used to query the baseline configuration for the vessel.

[0111] Rib position information correction module, used to correct the rib position information based on the baseline;

[0112] The pad marking module is used to mark the initial position point of the zigzag pad between two adjacent ship ribs based on the rib information after the correction is completed.

[0113] In one embodiment of the present invention, the target pad deviation value measurement module 302 includes:

[0114] The frame location point acquisition module is used to acquire the frame location points of the segmented frames in each of the segmented regions; the segmented frame includes at least transverse ribs, longitudinal girders, and T-shaped structural points;

[0115] The design drawing query module is used to query the design drawings of the vessel.

[0116] The pad deviation value module is used to calculate the positional deviation between the initial position point of the bilge keel pad and the theoretical position point of the bilge keel pad in the design drawing, and use it as the pad deviation value.

[0117] The pad deviation value correction module is used to correct the pad deviation value based on the frame position point of the segmented frame to obtain the target pad deviation value.

[0118] In one embodiment of the present invention, the pad deviation value correction module includes:

[0119] The deformation component measurement module is used to calculate the deformation components of the segmented frame based on the measured frame position points of the segmented frame and the theoretical frame position points of the segmented frame in the design drawings.

[0120] The local error component calculation module is used to take the difference between the pad deviation value and the deformation component as the local error component for surveying the bilge keel pad.

[0121] The target pad deviation value acquisition module is used to take the negative number of the local error component as the target pad deviation value.

[0122] In one embodiment of the present invention, the welding correction measure generation module 305 includes:

[0123] The bilge keel base plate correction strategy generation module is used to generate welding correction measures if the deviation between the actual position point and the target position point after the bilge keel base plate is welded is greater than or equal to a preset first deviation threshold. The welding correction measures include opening the weld joint of the bilge keel base plate in the segmented section, moving the bilge keel base plate from the actual position point to the target position point, and if the movement is completed, welding the bilge keel base plate to the target position point.

[0124] The web plate correction strategy generation module is used to generate welding correction measures if the deviation between the actual position point and the target position point after the bilge keel pad is welded is less than a preset first deviation threshold, and the deviation between the actual included angle and the target included angle is greater than a preset second deviation threshold. The welding correction measures include heating and softening the weld joint between the bilge keel pad and the web plate by using a flame of a specified intensity, moving the web plate from the actual included angle to the target included angle, and welding the connection between the bilge keel pad and the web plate if the movement is completed.

[0125] The ship welding correction device provided in the embodiments of the present invention can perform the ship welding correction method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for performing the ship welding correction method.

[0126] Example 3

[0127] See Figure 4This diagram illustrates a structural schematic of a computer device according to an embodiment of the present invention. The term "computer device" is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, blade servers, mainframe computers, and other suitable computers. The computer device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0128] like Figure 4 As shown, the computer device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer programs stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 can also store various programs and data required for the operation of the computer device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0129] Multiple components in computer device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of monitors, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows computer device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0130] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as welding correction methods for ships.

[0131] In some embodiments, the welding repair method for a ship may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on computer device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the welding repair method for a ship described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the welding repair method for a ship by any other suitable means (e.g., by means of firmware).

[0132] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0133] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0134] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0135] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer device having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0136] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0137] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0138] Example 4

[0139] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the welding correction method for ships as provided in any embodiment of this invention.

[0140] In implementing the computer program product, computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0141] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0142] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for welding repair of a ship, characterized in that, The vessel includes a bilge keel pad, a web, an outer plating, and a bilge section; the bilge section has multiple segmented areas; the web is welded to the bilge keel pad, and a target angle is formed between the thickness surface of the web and the upper surface of the bilge keel pad, the upper surface of the bilge keel pad being the opposite surface in contact with the outer plating; the method includes: Based on the segmentation type of the segmented area, mark the initial position points of the bilge keel pads on the segmented area; In the segmented region, the deviation value of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented region is measured; The initial position of the bilge keel pad is corrected based on the target pad deviation value to obtain the target position of the bilge keel pad; If the bilge keel pad has been welded to the segmented area according to the target position point, then the actual position point of the bilge keel pad welded to the segmented area, and the actual included angle formed between the thickness surface of the web and the upper surface of the bilge keel pad are detected respectively. The welding correction measures are generated, wherein the welding correction measures include correcting the bilge keel pad from the actual position point to the target position point, and correcting the web plate from the actual included angle to the target included angle; The bilge keel pads include flat plates and zigzag plates adapted to the contours of the segmented areas; the initial position points of the bilge keel pads are determined according to the segmentation type of the segmented areas, including: If the segmentation type of the segmented area is straight, then query the distance of the pads configured for the ship; On the segmented area, at intervals of the pad, the initial position point of the planar plate is marked; If the segmentation type of the segmented area is zigzag, then query the rib information of the ship bilge related to the segmented area; Based on the rib information, the initial position points of the zigzag plates are delineated in the segmented area; The querying of the rib information of the hull section related to the segmented area includes: Consult the design drawings of the aforementioned vessel; Based on the design drawings, obtain the arc length data of each ship rib in the segmented area; The arc length data is used to calculate the rib position information of each of the ship's ribs on the ship's outer plating; The step of marking the initial position points of the tortuous plates in the segmented region based on the rib information includes: Query the baseline for the configuration of the aforementioned vessel; The rib information is corrected based on the baseline. If the correction is completed, the initial position point of the zigzag plate is marked between two adjacent ship ribs based on the rib information; The measurement of the deviation of the initial position point of the bilge keel pad from the target pad of the segmented frame in the segmented region includes: Collect the frame location points of the segmented frames in each of the segmented regions; the segmented frames include at least transverse ribs, longitudinal girders, and T-shaped structural points; Consult the design drawings of the aforementioned vessel; Calculate the positional deviation between the initial position of the bilge keel pad and the theoretical position of the bilge keel pad in the design drawing, and use it as the pad deviation value; The deviation value of the pad is corrected based on the frame position points of the segmented frame to obtain the target pad deviation value.

2. The method according to claim 1, characterized in that, The step of correcting the pad deviation value based on the frame position points of the segmented frame to obtain the target pad deviation value includes: The deformation components of the segmented frame are calculated based on the measured frame position points and the theoretical frame position points of the segmented frame in the design drawings. The difference between the deviation value of the pad and the deformation component is taken as the local error component of the bilge keel pad. The negative of the local error component is taken as the target pad deviation value.

3. The method according to any one of claims 1-2, characterized in that, The generated welding correction measures include: If the deviation between the actual position of the bilge keel pad after welding and the target position is greater than or equal to a preset first deviation threshold, a welding correction measure is generated. The welding correction measure includes opening the weld joint of the bilge keel pad in the segmented area, moving the bilge keel pad from the actual position to the target position, and if the movement is completed, welding the bilge keel pad to the target position. If the deviation between the actual position point and the target position point after the bilge keel pad is welded is less than a preset first deviation threshold, and the deviation between the actual included angle and the target included angle is greater than a preset second deviation threshold, then a welding correction measure is generated. The welding correction measure includes heating and softening the weld point between the bilge keel pad and the web plate using a flame of a specified intensity, moving the web plate from the actual included angle to the target included angle, and welding the connection between the bilge keel pad and the web plate if the movement is completed.

4. A computer device, characterized in that, The computer device includes: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the welding correction method for the ship as described in any one of claims 1-3.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the welding correction method for the ship as described in any one of claims 1-3.

6. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the welding correction method for a ship as described in any one of claims 1-3.

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