CN109693758B - Marine L-shaped distributed sandwich plate connecting system and mounting method - Google Patents
Marine L-shaped distributed sandwich plate connecting system and mounting method Download PDFInfo
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- CN109693758B CN109693758B CN201810995054.4A CN201810995054A CN109693758B CN 109693758 B CN109693758 B CN 109693758B CN 201810995054 A CN201810995054 A CN 201810995054A CN 109693758 B CN109693758 B CN 109693758B
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- plate
- sandwich
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- outer connecting
- sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2221/00—Methods and means for joining members or elements
- B63B2221/02—Methods and means for joining members or elements by welding
Abstract
The invention relates to a connecting system of L-shaped distributed sandwich plates for a ship, which is connected with external corner connecting components on the outer sides of two sandwich plates, wherein the external corner connecting components comprise an external connecting outer plate and an external connecting inner plate, the external connecting outer plate is a groove-shaped plate, the external connecting inner plate is an M-shaped plate, the inner side surfaces on two sides of the external connecting inner plate are respectively connected and fixed with the upper surface plates of the two sandwich plates, and the inner side surfaces on two sides of the external connecting outer plate are respectively connected and fixed with the outer side surfaces on two sides of the external connecting inner plate; the inner angle connecting component is connected with the inner sides of the two sandwich plates and comprises an inner connecting plate bent in a 7 shape, and the inner connecting plate is respectively connected with the outer side faces of the lower panels of the two sandwich plates; and also relates to an installation method of the connection system. The invention has the advantages that: the connecting structure is adopted to strengthen the structure in the aspect of strength and improve the load bearing capacity of the sandwich plate while solving the problem that the metal-based sandwich plate is difficult to directly weld.
Description
Technical Field
The invention relates to a connecting system of an L-shaped distributed sandwich plate for a ship and a mounting method of the connecting system.
Background
The metal-based folding sandwich plate has the advantages of light weight, high specific strength, excellent shock resistance, vibration prevention, fire prevention and the like, and is widely applied to the fields of aerospace, automobiles, bridges and the like. The sandwich plate can not only effectively solve the bottleneck problem in the conventional ship structural design, but also improve the impact resistance of the ship and the design level of the ship when used in the ship structure. But the sandwich panel connection structure always restricts the large-scale application of the sandwich panel in the ship hull structure, especially the connection form of the sandwich panel at the corners. Because the distance between the upper panel and the lower panel of the sandwich panel is generally only about 5cm, the thickness of the sandwich panel is generally only about 1-3 mm, the direct welding method not only needs to cut the sandwich panel with high precision, but also is easy to penetrate, complex in construction, time-consuming and labor-consuming and difficult to weld in butt joint, and in addition, the problems of stress concentration, overhigh hardness and the like at the welding corners are brought, cracking is easy to generate, and the strength problem of the connecting part of the sandwich panel is difficult to meet.
Disclosure of Invention
The invention aims to provide a connecting system for a ship L-shaped distributed sandwich plate and an installation method of the connecting system.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a marine L shape distributes sandwich panel connected system, connected system is used for being connected between sandwich panel to the sandwich panel of horizontal distribution and vertical distribution, the sandwich panel includes an upper panel, a lower panel and is located between the upper and lower panel and connects the sandwich structure of upper and lower panel, and its innovation point lies in: the connection system comprises
The outer corner connecting assembly is connected with the outer sides of the two sandwich plates and comprises an outer connecting outer plate and an outer connecting inner plate, the outer connecting outer plate is a groove-shaped plate, the outer connecting inner plate is an M-shaped plate, the inner side surfaces of the two sides of the outer connecting inner plate are respectively connected and fixed with the upper face plates of the two sandwich plates, and the inner side surfaces of the two sides of the outer connecting outer plate are respectively connected and fixed with the outer side surfaces of the two sides of the outer connecting inner plate;
the inner angle connecting assembly is connected with the inner sides of the two sandwich plates and comprises an inner connecting plate bent in a 7 shape, and the inner connecting plate is respectively connected with the outer side faces of the lower panels of the two sandwich plates.
Further, the included angle of the two side plates of the outer connecting inner plate is consistent with the included angle of the two sandwich plates, and the two ends of the outer connecting outer plate and the outer connecting inner plate are arc-shaped.
Further, the bending angle of the inner connecting plate is consistent with the included angle of the two sandwich plates, and the two ends of the inner connecting plate are arc-shaped.
The processing method for realizing the connection system of the L-shaped distributed sandwich plate for the ship is characterized by comprising the following innovation points: comprising the following steps:
a) Manufacturing an external corner connecting assembly: firstly, obtaining bending angles of an outer connecting outer plate and an outer connecting inner plate and lengths of bending sections of the outer connecting outer plate and the outer connecting inner plate according to calculation, then taking two rectangular steel plates meeting the length requirement, and bending the two steel plates according to the sizes to respectively form the outer connecting outer plate and the outer connecting inner plate;
b) Manufacturing an inner angle connecting assembly: taking a rectangular steel plate, and bending the rectangular steel plate according to the bending angle of the inner connecting plate obtained by calculation to form the inner connecting plate;
c) And (3) integrally assembling: and the upper panel of the sandwich plate which is horizontally distributed is attached to the inner side surface of one side of the outer connecting inner plate and is welded and fixed, the upper panel of the sandwich plate which is vertically distributed is attached to the inner side surface of the other side of the outer connecting inner plate and is welded and fixed, then, the inner walls of the two sides of the outer connecting outer plate are attached to the outer walls of the two sides of the outer connecting inner plate and are welded and fixed, and finally, the inner connecting plate is attached to the outer surfaces of the lower panels of the two sandwich plates and the end parts of the inner connecting plate are welded and fixed respectively.
Further, in the step c, the welding between the outer connecting inner plate and the sandwich plate, the outer connecting inner plate and the outer connecting outer plate, and the welding between the inner connecting plate and the sandwich plate are all common welding.
The invention has the advantages that: in the size range of the prior common sandwich plate and the change range of a certain corner included angle, the unified assembly can be realized through simple steel plate bending and welding operation under the condition of not changing the form and the size of the connecting member, and the modularization operation is convenient.
The connecting structure is adopted to strengthen the structure in the aspect of strength and improve the load bearing capacity of the sandwich plate while solving the problem that the metal-based sandwich plate is difficult to directly weld.
The included angle between the two side plates of the outer connecting inner plate is consistent with the included angle between the two sandwich plates, so that the outer connecting inner plate can be well attached to the two sandwich plates, gaps are avoided between the two sandwich plates in the welding process, and the two ends of the outer connecting outer plate and the two ends of the outer connecting inner plate are arc-shaped so as to facilitate welding.
The bending angle of the inner connecting plate is consistent with the included angle of the two sandwich plates, so that the inner connecting plate can be well attached to the two sandwich plates, the structural strength is prevented from being influenced by a gap, and the two ends of the inner connecting plate are designed into arc shapes for convenient welding.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of the marine L-shaped distributed sandwich panel connection system of the present invention.
Fig. 2 to 4 are flowcharts illustrating the manufacturing of the outer-connection inner panel according to the present invention.
Fig. 5 and 6 are flowcharts of the manufacturing process of the external connection outer panel according to the present invention.
Fig. 7-11 are flowcharts of the connection system to the sandwich panel according to the invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
The connection system of the L-shaped distributed sandwich plate for the ship is shown in fig. 1, and is used for connecting the horizontally distributed sandwich plate with the vertically distributed sandwich plate, wherein the sandwich plate comprises an upper panel 1, a lower panel 2 and a sandwich structure 3 which is positioned between the upper panel 1 and the lower panel 2 and is used for connecting the upper panel 1 and the lower panel 2.
The connection system comprises
The outer corner connecting assembly is used for connecting the outer sides of the two sandwich plates and comprises an outer connecting outer plate 5 and an outer connecting inner plate 4, the outer connecting outer plate 5 is a groove-shaped plate, the outer connecting inner plate 4 is an M-shaped plate, the inner side surfaces of the two sides of the outer connecting inner plate 4 are respectively connected and fixed with the upper surface plates 1 of the two sandwich plates, and the inner side surfaces of the two sides of the outer connecting outer plate 5 are respectively connected and fixed with the outer side surfaces of the two sides of the outer connecting inner plate 4.
The included angle of the two side plates of the outer connecting inner plate 4 is consistent with the included angle of the two sandwich plates, and the two ends of the outer connecting outer plate 5 and the outer connecting inner plate 4 are arc-shaped. The included angle between the two side plates of the outer connecting inner plate 4 is consistent with the included angle between the two sandwich plates, so that the outer connecting inner plate 4 can be well attached to the two sandwich plates, gaps are avoided between the two sandwich plates in the welding process, and arc shapes are adopted at the two ends of the outer connecting outer plate 5 and the outer connecting inner plate 4 so as to facilitate welding.
An inner corner connecting component for connecting the inner sides of the two sandwich plates, wherein the inner corner connecting component comprises an inner connecting plate 6 bent in a 7 shape, and the inner connecting plate 6 is respectively connected with the outer side surfaces of the lower panels 2 of the two sandwich plates.
The bending angle of the inner connecting plate 6 is consistent with the included angle of the two sandwich plates, and the two ends of the inner connecting plate 6 are arc-shaped. For the bending angle of the inner connecting plate 6 is consistent with the included angle of the two sandwich plates, the inner connecting plate 6 can be well attached to the two sandwich plates, the structural strength is prevented from being influenced by generating gaps, and the two ends of the inner connecting plate are designed into arc shapes for convenient welding
The processing method of the connecting system is realized through the following steps:
first, manufacturing an external corner connecting assembly: firstly, according to the calculated bending angles of the outer connecting outer plate 5 and the outer connecting inner plate 4 and the lengths of the bending sections of the outer connecting outer plate 4 and the outer connecting inner plate 5, two rectangular steel plates meeting the length requirement are taken, and the two steel plates are bent according to the sizes to respectively form the outer connecting outer plate 5 as shown in fig. 5 and 6 and the outer connecting inner plate 4 as shown in fig. 2-4.
Second, manufacturing the inner angle connecting assembly: and obtaining a rectangular steel plate according to the calculated bending angle of the inner connecting plate 6 and the length of the inner connecting plate 6, and bending the rectangular steel plate to form the inner connecting plate 6.
Third, integrally assembling: the upper panel of the sandwich plate which is horizontally distributed is attached to the inner side surface of one side of the outer connecting inner plate, and welded and fixed, as shown in fig. 7, the upper panel of the sandwich plate which is vertically distributed is attached to the inner side surface of the other side of the outer connecting inner plate, welded and fixed, then, the inner walls of the two sides of the outer connecting outer plate are attached to the outer walls of the two sides of the outer connecting inner plate, welded and fixed, and finally, the inner connecting plate is attached to the outer surfaces of the lower panels of the two sandwich plates, and welded and fixed to the end parts of the inner connecting plate respectively.
The welding between the outer connecting inner plate and the sandwich plate, the welding between the outer connecting inner plate and the outer connecting outer plate, and the welding between the inner connecting plate and the sandwich plate are all common welding.
To fully illustrate the advantages of the connection structure of the present invention, the following comparative verification is made with a direct welded connection structure:
for convenience of comparison, the sandwich plate material, size and plate thickness are the same as those of the structure connected by the connecting piece, for the structural size of the sandwich plate, the horizontally distributed sandwich plates are length x width x height=20 x 20 x 5cm, the vertically distributed sandwich plates are length x width x height=15 x 20 x 5cm, and the thickness of the plates is 3mm.
And (5) establishing a finite element model of a typical corner structure for comparison analysis.
The deformation degree of the sandwich plate structure under external static load is simulated by utilizing finite element software, the strength and mechanical property difference of the sandwich plate structure and the static load of 1000N is applied to the left end part of the sandwich plate which is vertically distributed, the maximum deformation amount of each position of the sandwich plate structure, the energy absorption of the structure and the concentration condition of the stress are researched, the stress, the strain and the energy absorption diagram are calculated, the energy absorption condition can reflect the shock resistance of the sandwich plate, the larger the energy absorption amount is, the better the buffering effect of the sandwich plate is, the larger the maximum deformation amount can reflect the structural strength of the sandwich plate, the smaller the deformation amount is, and the larger the structural strength is.
After the same load is applied, the maximum stress of the sandwich plate structure connected by the connecting system is 0.2059MPa, the maximum stress of the sandwich plate structure connected by direct welding is 0.2623MPa, and the maximum stress of the structure of the connecting piece provided by the invention is reduced by 21.5%.
The maximum displacement of the sandwich structure connected by the inventive connection system after the same load is applied is 3.459 ×10 -7 m, while the maximum displacement of the sandwich panel structure connected by direct welding reaches 3.511 multiplied by 10 -7 m, the maximum displacement of the structure using the connector proposed herein is reduced by 1.5%.
The strength of the connecting system at the folded corner of the marine metal-based folding sandwich plate is obviously improved compared with that of the traditional direct welding method, and the main reason is that the connecting system is high in strength, the corner is a stress concentration position, so that the problem of partial strength deficiency caused by direct welding connection is avoided, the inconvenience and difficulty in construction during direct welding of the sandwich plate are overcome, and the guarantee is provided for modular installation of the sandwich plate.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a marine L shape distributes sandwich panel connected system, connected system is used for being connected between sandwich panel to the sandwich panel of horizontal distribution and vertical distribution, the sandwich panel includes a top panel, a lower panel and is located between the top and bottom panels and connects the sandwich structure of top and bottom panels, its characterized in that: the connection system comprises
The outer corner connecting assembly is connected with the outer sides of the two sandwich plates and comprises an outer connecting outer plate and an outer connecting inner plate, the outer connecting outer plate is a groove-shaped plate, the outer connecting inner plate is an M-shaped plate, the inner side surfaces of the two sides of the outer connecting inner plate are respectively connected and fixed with the upper face plates of the two sandwich plates, and the inner side surfaces of the two sides of the outer connecting outer plate are respectively connected and fixed with the outer side surfaces of the two sides of the outer connecting inner plate;
the inner angle connecting assembly is connected with the inner sides of the two sandwich plates and comprises an inner connecting plate bent in a 7 shape, and the inner connecting plate is respectively connected with the outer side faces of the lower panels of the two sandwich plates.
2. The marine L-shaped distribution sandwich panel connection system of claim 1, wherein: the included angle between the two side plates of the outer connecting inner plate is consistent with the included angle between the two sandwich plates, and the two ends of the outer connecting outer plate and the outer connecting inner plate are arc-shaped.
3. The marine L-shaped distribution sandwich panel connection system of claim 1, wherein: the bending angle of the inner connecting plate is consistent with the included angle of the two sandwich plates, and the two ends of the inner connecting plate are arc-shaped.
4. A method of manufacturing a marine L-shaped distributed sandwich panel connection system according to claim 1, characterized by: comprising the following steps:
a) Manufacturing an external corner connecting assembly: firstly, obtaining bending angles of an outer connecting outer plate and an outer connecting inner plate and lengths of bending sections of the outer connecting outer plate and the outer connecting inner plate according to calculation, then taking two rectangular steel plates meeting the length requirement, and bending the two steel plates according to the sizes to respectively form the outer connecting outer plate and the outer connecting inner plate;
b) Manufacturing an inner angle connecting assembly: taking a rectangular steel plate, and bending the rectangular steel plate according to the bending angle of the inner connecting plate obtained by calculation to form the inner connecting plate;
c) And (3) integrally assembling: and the upper panel of the sandwich plate which is horizontally distributed is attached to the inner side surface of one side of the outer connecting inner plate and is welded and fixed, the upper panel of the sandwich plate which is vertically distributed is attached to the inner side surface of the other side of the outer connecting inner plate and is welded and fixed, then, the inner walls of the two sides of the outer connecting outer plate are attached to the outer walls of the two sides of the outer connecting inner plate and are welded and fixed, and finally, the inner connecting plate is attached to the outer surfaces of the lower panels of the two sandwich plates and the end parts of the inner connecting plate are welded and fixed respectively.
5. The method of manufacturing a marine L-shaped distributed sandwich panel connection system of claim 4, wherein: in the step c, the welding between the outer connecting inner plate and the sandwich plate, the welding between the outer connecting inner plate and the outer connecting outer plate, and the welding between the inner connecting plate and the sandwich plate are all common welding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810995054.4A CN109693758B (en) | 2018-08-29 | 2018-08-29 | Marine L-shaped distributed sandwich plate connecting system and mounting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810995054.4A CN109693758B (en) | 2018-08-29 | 2018-08-29 | Marine L-shaped distributed sandwich plate connecting system and mounting method |
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| Publication Number | Publication Date |
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| CN109693758A CN109693758A (en) | 2019-04-30 |
| CN109693758B true CN109693758B (en) | 2023-09-26 |
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| CN1371445A (en) * | 1999-07-29 | 2002-09-25 | 多纳蒂集团公开有限公司 | Constructional sandwich panel for high strength wall and covering assemblies, and method formaking said panel |
| CN1884762A (en) * | 2006-06-14 | 2006-12-27 | 广州市壁神新型建材有限公司 | Assembled large-scale construction board with light frame and manufacturing process thereof |
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| JP2011194817A (en) * | 2010-03-23 | 2011-10-06 | Mitsubishi Electric Corp | Sandwich panel and method of manufacturing the same |
| CN103328738A (en) * | 2010-10-22 | 2013-09-25 | 克劳斯玛菲科技有限公司 | Sandwich panel |
| JP2015045125A (en) * | 2013-08-27 | 2015-03-12 | 茂 坂 | Frp sandwich panel construction method building |
| CN105201102A (en) * | 2015-09-24 | 2015-12-30 | 张家港市盛港绿色防火建材有限公司 | Combined spliced and inserted type container house wall |
| CN105283705A (en) * | 2013-04-12 | 2016-01-27 | 气体运输科技公司 | Sealed and thermally insulating tank for storing a fluid |
| CN107901518A (en) * | 2017-12-06 | 2018-04-13 | 哈尔滨工程大学 | A kind of L-type Composite Sandwich Plates connection structure with metal flexible connector |
| CN209852521U (en) * | 2018-08-29 | 2019-12-27 | 江苏科技大学 | Marine L shape distribution sandwich panel connected system |
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2018
- 2018-08-29 CN CN201810995054.4A patent/CN109693758B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371445A (en) * | 1999-07-29 | 2002-09-25 | 多纳蒂集团公开有限公司 | Constructional sandwich panel for high strength wall and covering assemblies, and method formaking said panel |
| CN1884762A (en) * | 2006-06-14 | 2006-12-27 | 广州市壁神新型建材有限公司 | Assembled large-scale construction board with light frame and manufacturing process thereof |
| CN101678599A (en) * | 2007-05-25 | 2010-03-24 | 菲茨控股公司 | Method for manufacturing an object from a sandwich structure having a reinforced corner and an object of this type |
| JP2011194817A (en) * | 2010-03-23 | 2011-10-06 | Mitsubishi Electric Corp | Sandwich panel and method of manufacturing the same |
| CN103328738A (en) * | 2010-10-22 | 2013-09-25 | 克劳斯玛菲科技有限公司 | Sandwich panel |
| CN105283705A (en) * | 2013-04-12 | 2016-01-27 | 气体运输科技公司 | Sealed and thermally insulating tank for storing a fluid |
| JP2015045125A (en) * | 2013-08-27 | 2015-03-12 | 茂 坂 | Frp sandwich panel construction method building |
| CN105201102A (en) * | 2015-09-24 | 2015-12-30 | 张家港市盛港绿色防火建材有限公司 | Combined spliced and inserted type container house wall |
| CN107901518A (en) * | 2017-12-06 | 2018-04-13 | 哈尔滨工程大学 | A kind of L-type Composite Sandwich Plates connection structure with metal flexible connector |
| CN209852521U (en) * | 2018-08-29 | 2019-12-27 | 江苏科技大学 | Marine L shape distribution sandwich panel connected system |
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