A multi-zone marine system equipment positioning reference determination method and marine

Abstract

The application provides a multi-region ship system equipment positioning reference determination method and a ship, which comprises the following steps: collecting size data of a ship body structure in a system equipment installation range in each region; calculating an actual size a of the ship body structure collected in each region from a transverse design reference line, comparing the actual size a with a size A of the system equipment at the same position, and calculating a difference value △A=A-a; adjusting a position of the transverse design reference line according to the difference value △A to meet a preset installation requirement, and taking the transverse design reference line as a transverse positioning reference line; measuring a height value h of a lowest point of an upper deck from a height reference surface of a lower deck, comparing the height value h of the adjacent two decks with a height value H of the system equipment placed on the lower deck, and calculating a difference value △H=H-h; and adjusting a position of the height reference surface of the lower deck according to the difference value △H to meet a preset height installation requirement, and taking the height reference surface of the lower deck as a height positioning reference line. The method meets the requirement of accurate alignment of each component in the system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship system equipment construction, in particular to a multi-region ship system equipment positioning reference determination method and a ship. BACKGROUND

[0002] The equipment of a ship system is usually formed by combining multiple parts. After the ship is formed, the system equipment usually needs to be independently assembled in each region, and finally forms an overall system across regions. When assembling in each region, the positioning of the parts is usually based on the ship structure in the region. However, due to different forms of structural deformation of steel and other structures during processes such as blanking, welding and transportation, especially uncontrollable deformation during the welding process, that is, deformation of the ship structure in each region, the positioning of the equipment parts based on the ship structure will result in inaccurate reference positioning. In addition, the inaccurate positioning reference will further cause cumulative errors in the butt joint of the parts in the associated regions, resulting in the inability to smoothly butt joint the butt joint position and causing modifications.

[0003] Therefore, it is urgent to find a novel ship system equipment positioning reference determination method. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a multi-region ship system equipment positioning reference determination method and a ship, which eliminates errors in the construction process of the ship structure by unified reference surveying coordinates in multiple regions, provides a unified reference for the positioning and installation of parts in the system, avoids the misalignment problem of parts caused by structural cumulative errors, solves the problem of unable to select the positioning reference on site, improves the positioning efficiency on site, and meets the requirement of accurate alignment of parts in the system.

[0005] In a first aspect, a multi-region ship system equipment positioning reference determination method is provided, comprising:

[0006] After the ship is formed, the size data of the ship structure in the installation range of the system equipment is collected in each region;

[0007] A transverse design reference line and a longitudinal design reference line are selected, the actual size a of the collected ship structure in each region from the transverse design reference line and the actual size b of the collected ship structure in each region from the longitudinal design reference line are calculated, the actual size a is compared with the size A of the system equipment at the same position, and the difference ΔA=A-a is calculated, and the actual size b is compared with the size B of the system equipment at the same position, and the difference ΔB=B-b is calculated;

[0008] The position of the horizontal design reference line is adjusted according to the difference △A, and the position of the vertical design reference line is adjusted according to the difference △B, so that the difference △A after adjusting the horizontal design reference line and the difference △B after adjusting the vertical design reference line both meet the preset installation requirements, the adjusted horizontal design reference line is taken as the horizontal positioning reference line, and the adjusted vertical design reference line is taken as the vertical positioning reference line.

[0009] A height reference surface of each deck is obtained.

[0010] The height value h of the lowest point of the upper deck from the height reference surface of the lower deck is measured, the height values h of the adjacent two decks are compared with the height value H of the system equipment placed on the lower deck, and the difference △H = H-h is calculated.

[0011] The position of the height reference surface is adjusted according to the difference △H, so that the difference △H after adjusting the height reference surface meets the preset height installation requirements, and the intersection line of the adjusted height reference surface and the ship structure is taken as the height positioning reference line.

[0012] The horizontal positioning reference line, the vertical positioning reference line and the height positioning reference line are marked on the ship structure of each area.

[0013] In an embodiment, the obtaining of the height reference surface of each deck comprises:

[0014] Grid lines are drawn on the deck according to the rib distance and the longitudinal distance, any grid line intersection point is selected as a reference point, the height data of all grid line intersection points are obtained with reference to the reference point, the average value of the height data of all grid line intersection points is obtained, and the height reference surface of the deck is obtained according to the plane where the average value is located.

[0015] In an embodiment, the size of the system equipment at the same position comprises a theoretical size of the system equipment at the same position and an actual size of the system equipment at the same position.

[0016] In an embodiment, the selecting of one horizontal design reference line comprises:

[0017] In the largest cabin of the ship body, one horizontal cross section is selected in the system equipment installation range according to the design theoretical data, and the intersection line of the horizontal cross section and the deck and the longitudinal bulkhead is taken as the horizontal design reference line.

[0018] In an embodiment, the collecting of the size data of the ship body structure in the system equipment installation range in each area comprises: collecting the size data of the ship body structure closest to the system equipment.

[0019] In an embodiment, the adjusting of the position of the height reference surface according to the difference △H comprises:

[0020] If the △H is less than the preset height installation requirement, the height reference surface of the lower deck is adjusted downward or the height reference surface of the upper deck is adjusted upward; if the △H is greater than the preset height installation requirement, no adjustment is made.

[0021] In an embodiment, the marking the lateral positioning reference line, the longitudinal positioning reference line and the height positioning reference line on the hull structure of each region comprises:

[0022] At least two left-right positioning points are arranged on the intersection of the lateral positioning reference line and the hull structure, at least two bow-stern positioning points are arranged on the intersection of the longitudinal positioning reference line and the hull structure, and at least three height positioning points are arranged on the intersection of the height positioning reference line and the hull structure, the three height positioning points forming a triangle with an angle less than or equal to 120°.

[0023] A signboard is arranged on each left-right positioning point, each bow-stern positioning point and each height positioning point, and three sample punching points are stamped on each signboard, with a distance of 50 mm and a depth of 0.5 mm between each two sample punching points.

[0024] In an embodiment, if the △H is less than the preset height installation requirement, the height reference surface is adjusted downward further comprises:

[0025] The height difference △h of the height reference surface and the intersection of the grid line of the deck on which the height reference surface is located is measured, so that the adjusted height reference surface meets the preset deck levelness requirement.

[0026] In an embodiment, it comprises collecting dimension data of the hull structure within the installation range of the system equipment in each region using a total station, and the region comprises a rectangular cabin surrounded by longitudinal and transverse bulkheads and a deck and a space above the deck.

[0027] According to the second aspect of the present application, a ship is also provided, the interior of the ship is arranged with system equipment, and the positioning reference of the system equipment is arranged according to the positioning reference determination method of the multi-region ship system equipment as described in any one of the embodiments of the first aspect.

[0028] The multi-region ship system equipment positioning reference determination method and the ship provided in the present application have the following beneficial effects:

[0029] 1. The present application provides a method for surveying a unified reference coordinate in multiple regions of a ship, which obtains a reference coordinate system in the system by collecting overall data of the hull structure and systematically analyzing installation requirements of equipment and parts in the structure system, and uses the reference coordinate system as a reference for positioning and inspection of equipment and parts in the system, solves the influence of structural errors caused by non-uniform reference in multiple regions on the installation of equipment and parts in the system, and finally realizes accurate docking of equipment and parts in the system.

[0030] 2、The application eliminates the error in the ship structure construction process by collecting the structure key size data in the area, analyzing the ship structure data according to the system preset installation requirements, finally surveying the base coordinate line, providing a unified reference for the positioning and installation of the parts in the system, avoiding the part centering deviation caused by the structure cumulative error, solving the problem that the positioning reference on site cannot be selected, improving the positioning efficiency on site, and meeting the requirement of accurate centering of the parts in the system. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Figure 1 It is a measurement schematic diagram of a transverse positioning reference line according to an embodiment of the present application;

[0033] Figure 2 It is a measurement schematic diagram of a height positioning reference line according to an embodiment of the present application;

[0034] Figure 3 It is a schematic diagram of a deck grid line according to an embodiment of the present application;

[0035] Figure 4 It is a layout schematic diagram of a positioning point according to an embodiment of the present application;

[0036] Figure 5 It is a structural schematic diagram of a signboard according to an embodiment of the present application.

[0037] 100, first bulkhead area; 200, second deck area; 210, intersection of grid lines on the second deck; 220, height reference surface of the second deck; 300, third deck area; 310, intersection of grid lines on the third deck; 320, height reference surface of the third deck; 330, structure at the lower end of the deck; 400, fourth deck area; 410, intersection of grid lines on the fourth deck; 420, height reference surface of the fourth deck; 500, system equipment; 600, transverse design reference line; 700, transverse positioning reference line; 710, left and right positioning points; 800, longitudinal positioning reference line; 810, bow and stern positioning points; 900, height positioning reference line; 910, height positioning points; 920, signboard; 921, sample punching point. DETAILED DESCRIPTION

[0038] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0039] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0040] In a first aspect, the present application provides a multi-zone ship system equipment positioning reference determination method, comprising:

[0041] After the ship is formed, the size data of the ship structure in the system equipment installation range is collected in each zone;

[0042] Referring to Figure 1 , a transverse design reference line 600 and a longitudinal design reference line (not shown in Figure 1 ) are selected, the actual size a of the ship structure collected in each zone (referring to Figure 1 the first bulkhead zone 100 and the fourth deck zone 400) from the transverse design reference line and the actual size b from the longitudinal design reference line are calculated; the actual size a is compared with the size A of the system equipment at the same position, for example, the first bulkhead zone 100 and the fourth deck zone 400, that is, the actual sizes a1, a2, a3 and a4 are compared with the sizes A1, A2, A3 and A4 of the system equipment at the same position respectively, and the difference △A = A-a is calculated, specifically, △A1 = A1-a1, △A2 = A2-a2, △A3 = A3-a3, △A4 = A4-a4, the actual size b is compared with the size B of the system equipment at the same position, and the difference △B = B-b is calculated;

[0043] The position of the transverse design reference line 600 is adjusted according to the difference value ΔA, that is, the position of the transverse design reference line 600 is adjusted forward and backward. The position of the longitudinal design reference line is adjusted according to the difference value ΔB, that is, the position of the longitudinal design reference line is adjusted left and right. The difference value ΔA after adjusting the transverse design reference line and the difference value ΔB after adjusting the longitudinal design reference line both satisfy the preset installation requirement, which is the design and installation requirement of the main parts of the equipment in the system. The adjusted transverse design reference line 600 is taken as the transverse positioning reference line 700, and the adjusted longitudinal design reference line is taken as the longitudinal positioning reference line 800; when adjusting the difference value ΔA, the adjusted value is the average value of ΔA1, ΔA2, ΔA3 and ΔA4.

[0044] It should be noted that the setting method of the longitudinal positioning reference line 800 is consistent with that of the transverse positioning reference line 700, and only the measured data is the size in the left-right direction of the ship body.

[0045] For the multi-deck area, the levelness of the ship body structure in the area is measured to obtain the height reference surface of each deck. Referring to Figure 2 , the deck area includes a second deck area 200, a third deck area 300 and a fourth deck area 400, and the obtained height reference surface of each deck includes a height reference surface 220 of a second deck, a height reference surface 320 of a third deck and a height reference surface 420 of a fourth deck;

[0046] The height value of the lowest point of the upper deck from the height reference surface of the lower deck is measured, and the height value H of the adjacent two decks is compared with the height value h of the system equipment placed on the lower deck to calculate the difference value ΔH = H-h. Figure 2 For example, the third deck area 300 and the fourth deck area 400 in , that is, the height value H1 of the lower end structure 330 of the deck of the third deck area 300 from the height reference surface 420 of the fourth deck is measured. The height value h1 of the system equipment 500 placed in the fourth deck area 400 is obtained, and compared to obtain ΔH1 = H1-h1;

[0047] The position of the height reference surface is adjusted according to the difference value ΔH, so that the difference value ΔH after adjusting the height reference surface satisfies the preset height installation requirement, and the intersection line between the adjusted height reference surface and the ship body structure is taken as the height positioning reference line 900;

[0048] Referring to Figure 4 , the transverse positioning reference line 700, the longitudinal positioning reference line 800 and the height positioning reference line 900 are marked on the ship body structure of each area.

[0049] In the aforementioned implementation process, a method was used to uniformly determine positioning benchmarks for multiple areas. Key dimensional data of the hull structure within each area were collected, and the structural data was analyzed and adjusted according to pre-set installation requirements, followed by marking. Specifically, by collecting overall data on the hull structure and systematically analyzing the pre-set installation requirements of components within the structural system, a reference coordinate system was derived. This eliminated errors during the hull structure construction process, provided a unified benchmark for the positioning and installation of components within the system, and avoided alignment deviations caused by accumulated structural errors. It also solved the problem of the inability to select a suitable on-site positioning benchmark, improved on-site positioning efficiency, and achieved the requirement for precise alignment of all components within the system.

[0050] In the above implementation process, obtaining the reference height plane for each deck includes:

[0051] See Figure 2 and Figure 3 Based on the rib spacing FS and longitudinal rib spacing LS, grid lines are drawn on the fourth deck area 400, where n is a positive integer. Any intersection point of the grid lines on the fourth deck, 410, is selected as a reference point. Using this reference point, the height data of all grid line intersection points on the fourth deck is obtained. The average height data of all grid line intersection points is then calculated, and the height reference plane 420 of the fourth deck is obtained based on the plane containing this average value. Considering the influence of elevation, the highest and lowest positions of each deck are obtained by drawing a grid based on the ribs and longitudinal ribs, thus obtaining the deck height reference plane. Furthermore, the height reference plane is obtained by measuring the completed decks and averaging their heights, avoiding the influence of construction errors.

[0052] In one implementation, the dimensions of the system equipment at the same location include both the theoretical dimensions and the actual dimensions of the system equipment at the same location. When the equipment has already been manufactured, the actual dimensions of the equipment are used.

[0053] In one implementation scheme, selecting a lateral design baseline includes:

[0054] Within the largest compartment of the hull, a transverse cross-section is selected within the system equipment installation range based on design theoretical data. The intersection line of this transverse cross-section with the deck and longitudinal bulkheads is chosen as the transverse design baseline. Within the largest compartment of the actual formed hull structure, the transverse or longitudinal design baseline is located according to the drawings.

[0055] In an embodiment, the collecting the dimension data of the hull structure within the system equipment installation range in each area comprises: collecting the dimension data of the hull structure closest to the system equipment. That is, only the minimum dimension of the hull structure from the transverse design reference line and the minimum dimension of the hull structure from the longitudinal design reference line in different areas need to be measured. That is, when the minimum dimension meets the preset installation requirement, the dimension of the hull structure from the design reference line in the area meets the preset installation requirement. The workload of measurement can be reduced, and the efficiency of positioning reference determination can be improved.

[0056] In an embodiment, the adjusting the position of the height reference surface according to the difference △H comprises:

[0057] If the △H is less than the preset height installation requirement, the height reference surface of the lower deck is adjusted downward or the height reference surface of the upper deck is adjusted upward; if the △H is greater than the preset height installation requirement, no adjustment is made. That is, it is ensured that the △H is greater than or equal to the preset height installation requirement.

[0058] In an embodiment, the marking the transverse positioning reference line 700, the longitudinal positioning reference line 800 and the height positioning reference line 900 on the hull structure of each area comprises:

[0059] Referring to Figure 4 and Figure 5 , at least two left-right positioning points 710 are arranged at the intersection of the transverse positioning reference line 700 and the hull structure, at least two bow-stern positioning points 810 are arranged at the intersection of the longitudinal positioning reference line 800 and the hull structure, and at least three height positioning points 910 are arranged at the intersection of the height positioning reference line 900 and the hull structure, the three height positioning points 910 form a triangle, and the angle of the triangle is less than or equal to 120°;

[0060] A sign plate 920 is arranged at each left-right positioning point 710, each bow-stern positioning point 810 and each height positioning point 910, and three sample points 921 are stamped on each sign plate 920, the distance L between every two sample points is 50 mm, and the depth is 0.5 mm, so that the reference can be avoided from being worn out and lost in the subsequent construction process. The setting position of the sign plate is required to be beyond the installation position of the system components or in the area convenient for construction.

[0061] In an embodiment, if the △H is less than the preset height installation requirement, the adjusting the height reference surface further comprises:

[0062] The height difference △h of the height reference surface and the intersection of the grid line of the deck where the height reference surface is located is measured, so that the adjusted height reference surface meets the preset deck levelness requirement. Referring to Figure 2When adjusting the height reference surface 420 of the fourth deck, the height difference Ah1 between the height reference surface 420 of the fourth deck and the intersection point 410 of the grid line on the fourth deck needs to be measured. When adjusting the height reference surface 220 of the second deck, the height difference between the height reference surface 220 of the second deck and the intersection point 210 of the grid line on the second deck needs to be measured. When adjusting the height reference surface 320 of the third deck, the height difference between the height reference surface 320 of the third deck and the intersection point 310 of the grid line on the third deck needs to be measured. The adjusted height reference surface meets the preset deck levelness requirement, so as to meet the levelness requirement of the equipment installed on the deck.

[0063] In an embodiment, the method comprises collecting dimension data of the hull structure within the system equipment installation range using a total station within each region, the region comprising a rectangular cabin enclosed by longitudinal and transverse bulkheads and a deck and the space above the deck. See the first bulkhead region 100 and the fourth deck region 400 in Figure 1

[0064] In a second aspect, the present application also provides a ship, which is internally arranged with system equipment, and the system equipment is arranged according to the positioning reference determined by the method for determining the positioning reference of the multi-region ship system equipment according to any one of the embodiments of the first aspect.

[0065] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. A method for determining a multi-zone marine system equipment positioning reference, the method comprising: The method comprises the following steps: After the ship is shaped, the size data of the hull structure within the system equipment installation range in each area is collected; A transverse design reference line and a longitudinal design reference line are selected, and the actual size a of the hull structure collected in each area from the transverse design reference line and the actual size b from the longitudinal design reference line are calculated; The actual size a is compared with the size A of the system equipment at the same position, and the difference ΔA=A-a is calculated; the actual size b is compared with the size B of the system equipment at the same position, and the difference ΔB=B-b is calculated; The position of the transverse design reference line is adjusted according to the difference ΔA, and the position of the longitudinal design reference line is adjusted according to the difference ΔB, so that the difference ΔA after the transverse design reference line is adjusted and the difference ΔB after the longitudinal design reference line is adjusted both satisfy the preset installation requirement; the adjusted transverse design reference line is taken as the transverse positioning reference line, and the adjusted longitudinal design reference line is taken as the longitudinal positioning reference line; The height reference surface of each deck is obtained; The height value h of the lowest point of the upper deck from the height reference surface of the lower deck is measured, the height value h of the adjacent two decks is compared with the height value H of the system equipment placed on the lower deck, and the difference ΔH=H-h is calculated; The position of the height reference surface is adjusted according to the difference ΔH, so that the difference ΔH after the height reference surface is adjusted satisfies the preset height installation requirement; the intersection line of the adjusted height reference surface and the hull structure is taken as the height positioning reference line; The transverse positioning reference line, the longitudinal positioning reference line and the height positioning reference line are marked on the hull structure of each area.

2. A method of determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, The method for obtaining the height reference surface of each deck comprises the following steps: Grid lines are drawn on the deck according to the rib distance and the longitudinal distance, any grid line intersection point is selected as a reference point, the height data of all grid line intersection points are obtained with reference to the reference point, the average value of the height data of all grid line intersection points is obtained, and the height reference surface of the deck is obtained according to the plane where the average value is located.

3. A method for determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, The size of the system equipment at the same position comprises the theoretical size of the system equipment at the same position and the actual size of the system equipment at the same position.

4. A method for determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, The method for selecting a transverse design reference line comprises the following steps: In the largest cabin of the hull, a transverse cross section is selected within the system equipment installation range according to the design theoretical data, and the intersection line of the transverse cross section and the deck and the longitudinal bulkhead is taken as the transverse design reference line.

5. A method for determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, The method for collecting the size data of the hull structure within the system equipment installation range in each area comprises the following step:

6. A method for determining a positioning reference for a multi-zone marine system device according to claim 2, wherein, The size data of the hull structure closest to the system equipment is collected. The method for adjusting the position of the height reference surface according to the difference ΔH comprises the following steps:

7. A method for determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, If the difference ΔH is less than the preset height installation requirement, the height reference surface of the lower deck is adjusted downward or the height reference surface of the upper deck is adjusted upward; if the difference ΔH is greater than the preset height installation requirement, no adjustment is made. The method for marking the transverse positioning reference line, the longitudinal positioning reference line and the height positioning reference line on the hull structure of each area comprises the following steps: At least two left-right positioning points are arranged at the intersection of the left-right positioning reference line and the hull structure, at least two bow-stern positioning points are arranged at the intersection of the bow-stern positioning reference line and the hull structure, and at least three height positioning points are arranged at the intersection of the height positioning reference line and the hull structure, the three height positioning points forming a triangle, and the angle of the triangle being less than or equal to 120°. A mark plate is arranged at each left-right positioning point, each bow-stern positioning point and each height positioning point, and three sample punching points are stamped on each mark plate, the distance between each two sample punching points being 50 mm and the depth being 0.5 mm.

8. A method of determining a positioning reference for a multi-zone marine system device according to claim 6, wherein, The downward adjustment of the height reference surface further includes: The height difference Δh between the height reference surface and the intersection of the grid line of the deck on which the height reference surface is located is measured, so that the adjusted height reference surface meets the preset deck levelness requirement.

9. A method for determining a positioning reference for a multi-zone marine system device according to claim 1, wherein, The system device collects the dimensional data of the hull structure within the installation range of the system device using a total station within each area, and the area includes a rectangular cabin surrounded by longitudinal and transverse bulkheads and a deck and the space above the deck.

10. A ship, the interior of which is arranged with system equipment, characterized in that The system device is arranged according to the positioning reference determined by the multi-area ship system device positioning reference determination method of any one of claims 1-9.

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