CN109263788A - The non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine and its design method - Google Patents
The non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine and its design method Download PDFInfo
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- CN109263788A CN109263788A CN201811004212.1A CN201811004212A CN109263788A CN 109263788 A CN109263788 A CN 109263788A CN 201811004212 A CN201811004212 A CN 201811004212A CN 109263788 A CN109263788 A CN 109263788A
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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
- B63B3/13—Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
- B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/16—Submarines
Abstract
The invention belongs to submarine hull field of structural design, it is related to a kind of non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine and its design method.The invention proposes the structures and design method of a kind of weakness zone that pyramid dot matrix interlayer shock resistance structure is applied to non-pressure hull, this method is not under the premise of reducing the structural behaviour of former non-pressure hull, by the way that conventional non-pressure hull is replaced with the hardened structure of pyramid dot matrix sandwich(-type) shell to improve its capability of antidetonance.
Description
Technical field
The invention belongs to submarine hull field of structural design, and it is anti-to be related to a kind of non-pressure hull pyramid dot matrix interlayer of submarine
Impact structure and its design method.
Background technique
Submarine is as important naval warfare strength, the indispensable role of performer in sea warfare always, due to weapon
The rapid development of technology, submarine local environment is also increasingly serious, and the explosion-and-knock resistant performance of submarine becomes an important performance
Demand.Wherein existing Double-casing submarine is provided with the non-pressure hull of outer layer and the pressure hull of internal layer, but conventional bivalve
The non-pressure hull and non-pressure hull of body submarine do not have anti-knock properties or anti-knock properties are lower, therefore it resists underawater ordnance
The ability of attack is lower, larger in the extent of damage and deformation extent of under fire back casing, very big to the security threat of submarine.
Summary of the invention
The purpose of the invention is, provide a kind of non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine and
Its design method realizes the antiknock anti-impact for effectively, easily improving existing double shells submarine hull structure especially pressure hull
Hit performance.
To achieve the above object, the invention adopts the following technical scheme that.
A kind of non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine, non-pressure hull refer to Double-casing submarine
Outer housing, non-pressure hull in the present invention by be located at the area A/area C of submarine left/right topside, the area B at the top of submarine and
The area D positioned at submarine bottom is constituted；The area A, the area B, the area C, the area D, which are sequentially connected, surrounds the non-pressure hull of complete submarine；Conventional knot
The area A/area C of structure includes the structures such as the non-pneumatic shell of hull topside, topside bracket, topside supporting plate and side of a ship frame timber；
The area A and the area C add the hardened structure of pyramid dot matrix sandwich(-type) shell, pyramid dot matrix sandwich(-type) shell on the basis of conventional structure
Hardened structure is made of four deck panels and the pyramid dot matrix between each panel；Including outer panels on the outermost side, position
In innermost inner panel and the first interlaminar board being arranged from inside to outside between outer panels and inner panel and the second interlayer
Plate；Vertical bone and rib cage are provided between adjacent panel；Vertical bone is along the longitudinal extension of submarine hull head and the tail, and rib cage is perpendicular to vertical bone edge
Circumferentially；Panel is provided on vertical bone and rib cage to constitute confined space；Vertical bone and rib cage position phase between each deck panels
To support and connect the hardened structure of pyramid dot matrix sandwich(-type) shell, vertical bone and rib cage intersect and constitute more grid knots for mutual square crossing
Structure；
Panel of each network respectively with above and below surrounds rectangular parallelepiped structure；Each rectangular parallelepiped structure is embedded with golden word
Tower cellular construction, pyramid unit are the Pyramid that four bar members are constituted, adjacent pyramid unit bottom surface fulcrum or vertex
It is interconnected to constitute pyramid dot matrix；Four fulcrums of pyramid unit bottom surface are overlapped with four angles of grid respectively；
The area B and the area D are conventional non-pressure hull structure, and the area B is connect with superstructure, and the area D is bottom structure.
It further include being set as complete floor every four rib positions in the area A and the area C to advanced optimizing for above structure,
Remaining rib position is set as multistage support board structure；Complete floor is connected with the floor in the area B and the area D respectively constitutes ring rib, ring rib phase
It is equally distributed segmentation rib cage between ring rib every four rib positions.
It further include that the height of the hardened structure of pyramid dot matrix sandwich(-type) shell is less than pressure hull to advanced optimizing for above structure
The one third of water tank height is loaded between non-pressure hull.
It further include that air or foam stuffing are full of in each rectangular parallelepiped structure to advanced optimizing for above structure.
It further include that in pyramid cellular construction 3e, the length of bar member is 100mm, bar to advanced optimizing for above structure
First diameter 15.2mm, each bar member and its in the angle of the projection of inner panel be 45 degree, pyramid bottom surface is square, and side length is
100mm is 70.72mm by the pyramidal height that bar member forms.
It further include that the outer panels of the hardened structure of pyramid dot matrix sandwich(-type) shell are the outer of submarine to advanced optimizing for above structure
Coverboard, thickness range are 5mm to 8mm；Inner panel thickness range is 5mm to 8mm, and inner panel is with the increase close to hull bottom degree
And it thickens.
The present invention also provides the non-pressure hull pyramid dot matrix interlayer shock resistance structure design methods of submarine comprising as follows
Step,
Step 1: the step of to the division of conventional weak part, in particular to:
According to submarine hull cross section structure feature, it is classified as connecting positioned at the area A/area C of left/right topside with superstructure
The original non-pressure hull in the area A/area C it is hardened to be replaced into pyramid dot matrix sandwich(-type) shell by the area B connect and the area D positioned at ship bottom
Structure；
Step 2: the step of fenestral fabric in the area A, the area C is designed, in particular to:
Since the non-pressure hull of conventional submarine belongs to ring stiffened shell structure, rib cage is housed on coverboard, therefore adds vertical bone, and
Pyramid dot matrix sandwich coverboard structure is used on non-pressure hull using the method for " laying bricks ".The area conventional submarine bay section A
For non-pressure hull other than floor and supporting plate, non-pressure hull is divided into cyclic annular section by rib cage.Not weaken conventional submarine
Non- this body structure of pressure hull is principle, band steel is set by vertical bone and rib cage, and increase in right amount, so that pyramid dot matrix structure
It is embeddable in grid.
Step 3: the step of to the dot matrix sandwich design in the area A, the area C, in particular to:
Vertical bone and the design of rib cage height is equal, so that the vertical bone and rib cage stagger mode of the hardened structure of pyramid dot matrix sandwich(-type) shell
It is embedded into grid at grid one by one, and by pyramid dot matrix structure；Four levels of the hardened structure of pyramid dot matrix sandwich(-type) shell
Plate is respectively lower panel, the first interlaminar board, the second interlaminar board, top panel, the non-pneumatic shell of top panel, that is, original structure from inside to outside
Coverboard；Lower panel, pyramid dot matrix structure, the first interlaminar board, pyramid dot matrix knot are successively installed according to sequence from inside to outside
Plate is mounted on vertical bone and rib cage during installing panel by structure, the second interlaminar board, pyramid dot matrix structure and top panel
Corresponding position；
Step 4: the area A, the area C and the area B, the area D connecting structure the step of, in particular to:
Make non-pressure hull the area B and the area D be consistent with the non-pneumatic shell of conventional submarine, each rib cage in the area B and the area D and the area A and C
The rib cage position in area is corresponding, wherein the floor every four areas Ge Leiwei A, the area C and the area B, the area D is interconnected to form ring rib；With the area B
Final position with the most marginal stringers web in the area D as the area A and the area C dot matrix sandwich.
It further include increasing bracket in each rib position and being supported with transition to advanced optimizing for above-mentioned design method.
Further include to advanced optimizing for above-mentioned design method, top stringers, plate floor and pyramid at bay section both ends
Plate connecting place below truss core coverboard structure, plate and plate floor connecting place below pyramid dot matrix sandwich coverboard structure,
The step of stiffener is respectively set in the non-pressure-resistant girdle rib position in submarine bottom.
The beneficial effect is that:
The beneficial effects of the present invention are, propose it is a kind of by pyramid dot matrix interlayer shock resistance structure be applied to non-pneumatic shell
The structure and design method of the weakness zone of body, this method are led under the premise of not reducing the structural behaviour of former non-pressure hull
It crosses and conventional non-pressure hull is replaced with into the hardened structure of pyramid dot matrix sandwich(-type) shell to improve its capability of antidetonance, have following excellent
Point:
1, by the change of structure and design, make the anti-of the submarine bay section for being mounted with the hardened structure of pyramid dot matrix sandwich(-type) shell
Quick-fried performance (calculating basis to reduce the maximum deformation quantity of pressure hull) ratio improves 69.7% on original base, wherein originally
The basic pressure-bearing depth of the hardened structure of dot matrix sandwich(-type) shell of invention is 435 meters, can sufficiently meet the use demand of existing submarine.
2, the creative influence for providing partition design method, reducing to submarine original structure and layout, the wherein area B
It keeps intact with D plot structure and material etc., the basic knot of original shell is sufficiently combined to the new construction that the area A and the area C apply
The position of structure, floor and rib cage and overall size are basically unchanged, and are only made layering and dots structure filling processing, are greatly reduced
On the change of original structure and influence, the workload that entire submarine hull redesigns is had compressed, realizes original shell base
Notebook data makes full use of.
3, using the filling design between the hardened structure of pyramid dot matrix sandwich(-type) shell and structure, when so that blast impulse occurring
Incidence wave momentum can substantially be cut down in the form of Xiang Shuizhong radiates rarefaction wave, become so as to improve the deformation of shell and stress
Change process, so that submarine hull overall deformation is smaller.Therefore on the basis of basic structure of the present invention, be conducive to further
Realize the promotion of its ultimate deformation Yu stress ability to bear, and then the submarine for design higher performance and safety provides design base
Plinth.
4, the high molecular material that radiation protection noise is filled in pyramid dot matrix structure can effectively reduce the production of the vibration sources such as host
Raw structural radiation noise reduces the identification probability of enemy's passive sonar.
5, the filling sucting sound material in pyramid dot matrix structure can effectively absorb sound in the water of enemy's active sonar transmitting
Wave improves the concealment and safety of our submarine.
6, basic structure letter of the invention and design method is concisely easy, it can be achieved that property is high, may be directly applied to new
The design of submarine and the structure of existing submarine is improved, construction technology is relatively easy, and reproducible degree height is conducive to the structure
And the popularization and application of method.
Based on dot matrix sandwich shell structure of the invention, it can preferably be played in conjunction with other corresponding technologies and extend it
Technical effect extends the technical performance of submarine, including
7, the vibration such as host is effectively reduced in the high molecular material that radiation protection noise can be filled in pyramid dot matrix sandwich
The structural radiation noise that source generates reduces the probability identified by enemy's passive sonar.
8, can in pyramid dot matrix structure filling sucting sound material, effectively absorb enemy's active sonar issue water in sound
Wave improves the concealment of our submarine.
Detailed description of the invention
Fig. 1 is the division result schematic diagram to the region submarine A, B, C, D；
Fig. 2 is the structural schematic diagram of the non-pressure hull of conventional submarine；
Fig. 3 is the multilayered structure schematic diagram of the pyramid dot matrix interlayer shock resistance structure in the present invention on non-pressure hull；
Fig. 4 is the enlarged drawing in the region M in Fig. 3；
Fig. 5 is the schematic diagram of the cellular construction in the pyramid dot matrix interlayer shock resistance structure on non-pressure hull；
Fig. 6 is the framing system design diagram of the pyramid dot matrix interlayer shock resistance structure on non-pressure hull；
The position view one of the stiffener of pyramid dot matrix interlayer shock resistance structure on the non-pressure hull of Fig. 7；
The position view two of the stiffener of pyramid dot matrix interlayer shock resistance structure on the non-pressure hull of Fig. 8；
Fig. 9 is the pyramid dot matrix interlayer shock resistance structure FEM model schematic diagram on non-pressure hull；
The height on dot matrix sandwich waters both sides between by external water area and side of a ship when Figure 10 is the calculating depth 435m of submarine diving
Hydrostatic pressing situation schematic diagram；
Figure 11 is high hydrostatic pressure situation schematic diagram of the pneumatic shell by waters between the side of a ship；
Figure 12 is the building flow chart of the pyramid dot matrix interlayer shock resistance structure of non-pressure hull.
Specific embodiment
It elaborates below in conjunction with specific embodiment to the invention.
The invention mainly relates to a kind of non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine, non-pressure hull is
Refer to the outer housing of Double-casing submarine.
As shown in Figure 1, in the present invention, according to the different housing regions of submarine by the intensity of blast impulse and generally
The shell of submarine is divided into four regions by rate, the area A/C, the area B at the top of submarine including being located at submarine left/right topside
And the area D positioned at submarine bottom；Typically, the area B and the area D common intensity are higher, and the probability by blast impulse is smaller, and B
Area is connect with superstructure, and the area D is bottom structure, therefore still retains its conventional non-pressure hull structure design；In contrast, A
The main function region and antiknock weak part of area and the area C as blast impulse, therefore mainly for the area A and the area C in the present invention
Structure design is carried out to improve its performance.
To guarantee the complete of submarine overall structure and performance, it is sequentially connected and is enclosed by the area A, the area B, the area C, the area D in the present invention
At the non-pressure hull of complete submarine；The pressure hull of internal layer still keeps original design of corresponding submarine.As shown in Fig. 2, general
For, the area A/area C of non-pressure hull includes the non-pneumatic shell of hull topside, topside bracket, topside supporting plate/vertical bone 2a and side of a ship side rib
The structures such as bone 2b；To keep the original structural behaviour of non-pressure hull as far as possible, the knots modification to Submarine Structure is reduced, reduces and designs
And transformation difficulty, it is the improvement made on existing basic structure basis in the present invention.Specifically, in non-pneumatic shell
In body, Fig. 3, the hardened structure of pyramid dot matrix sandwich(-type) shell shown in Fig. 4 are set by the area A and the area C, pyramid dot matrix sandwich(-type) shell is hardened
Structure is made of four deck panels and the pyramid dot matrix between each panel；Including outer panels 3a on the outermost side, it is located at
Innermost inner panel 3d and the first interlaminar board 3c being arranged from inside to outside between outer panels 3a and inner panel 3d and
Two interlaminar board 3b；Vertical bone 2a and rib cage 2b is provided between adjacent panel；Vertical bone 2a is along the longitudinal extension of submarine hull head and the tail, rib
Bone 2b perpendicular to vertical bone 2a circumferentially；Panel is provided on vertical bone 2a and rib cage 2b to constitute confined space；Each deck panels
Between vertical bone 2a and the position rib cage 2b be mutually perpendicular to intersect to support and connect the hardened structure of pyramid dot matrix sandwich(-type) shell, indulge bone 2a
It intersects with rib cage 2b and constitutes more networks.
In the specific implementation process, indulging bone 2a and rib cage 2b can be with the rib cage 2b and supporting plate of the non-pressure hull of original submarine
Isostructural position is identical or carries out fine adjustments on its basis, in order to be designed using original structure, does not need to B
Area and the area D carry out adaptation modification, and that reduces submarine designs and manufactures difficulty.
Panel of each network respectively with above and below in the area A and the area C surrounds rectangular parallelepiped structure；Each cuboid knot
Pyramid cellular construction 3e is embedded in structure, as shown in figure 5, pyramid cellular construction 3e is the pyramid that four bar member 4a are constituted
Shape, the adjacent bottom surface pyramid cellular construction 3e fulcrum 4b or vertex 4c are interconnected to constitute pyramid dot matrix；Pyramid unit
Four fulcrum 4b of the bottom surface structure 3e are overlapped with four angles of grid respectively；In specific process, for conventional submarine knot
Structure can use following preference data, and the length of bar member 4a is 100mm, bar member 4a diameter in pyramid cellular construction 3e
15.2mm, each bar member 4a and its in the angle of the projection of inner panel 3d be 45 degree, pyramid bottom surface is square, and side length is
100mm is 70.72mm by the pyramidal height that bar member 4a is formed.
Correspondingly, Shell Plate of the outer panels 3a of its hardened structure of pyramid dot matrix sandwich(-type) shell as submarine, thickness range
For 5mm to 8mm；Inner panel 3d thickness range is 5mm to 8mm, and inner panel 3d thickens with the increase close to hull bottom degree.
As shown in fig. 6, on the basis for guaranteeing non-pressure hull structural strength, by the area A and the area C every four rib positions
It is set as complete floor, remaining rib position is set as the segmentation rib cage 5b of multistage support board structure；Complete floor respectively with the area B and
The floor in the area D, which is connected, constitutes ring rib 5a, and it is equally distributed segmentation rib cage 5b between ring rib 5a that ring rib 5a, which is separated by four rib positions,.
On the one hand it sufficiently combines the structure of original non-pressure hull to design, retains original design function, on the other hand make closed length
Cube structure is serially connected, and forms whole pressure-bearing buffer area, and ring rib 5a makes four regions be able to maintain structure and function
It is complete.
The height of the hardened structure of pyramid dot matrix sandwich(-type) shell, which is less than between pressure hull and non-pressure hull, loads water tank height
One third.For the integral thickness and space hold for limiting shell, avoid impacting the basic structure of submarine, the shell
The whole height (integral thickness for being equivalent to non-pressure-resistant shell) of body structure should be less than the one third of load water tank height.For
Further expand the function of the hardened structure of pyramid dot matrix sandwich(-type) shell of the invention, can in each rectangular parallelepiped structure full of air or
The fillers such as person's foam stuffing.The various extra performances such as impact resistance, damping noise reduction are improved to realize.
For further pyramid dot matrix interlayer shock resistance structure of the invention is described, for certain type conventional submarine
Basic structure and parameter carry out the application design of non-pressure hull to it, and design size is as shown in table 1
The design parameter of certain the non-pressure hull of type submarine of table 1
Based on the design parameter of certain non-pressure hull of type submarine in table 1, it is using processing before and after finite element and analysis
The MSC.PATRAN that unites carries out simulating, verifying to the anti-static pressure and the capability of antidetonance of submarine bay section, for the terseness of description, hereinafter
It is middle that the submarine equipped with pyramid dot matrix sandwich coverboard structure is referred to as protected into submarine.Its basic step includes:
1) bay section model is established, on the basis of the design parameter in table 1, the several of bay section model are established in MSC.PATRAN
What model and finite element model, while assigning material parameter and cell attribute；Due to the pyramid unit bar in a bay section
The substantial amounts of part lead to model unit high number, it is contemplated that the processing capacity of computer, bay section model herein are only established
The pyramid dot matrix sandwich coverboard structure of one side of a ship, and apply high hydrostatic pressure load to it, analyze its displacement, strain and stress.
Due to the symmetry of submarine, only the displacement of this side, stress and strain are carried out analyzing to grind making internal disorder or usurp herein.In actually modeling,
Symmetrical another side of a ship establishes the non-pressure hull of conventional submarine, and the side of a ship truss core coverboard structure to be analyzed provides accordingly
Boundary condition, and keep the integrality of submarine bay section.Because the pyramid dot matrix sandwich coverboard structure in the area submarine A is that we study
Emphasis, so the grid dividing in the area A wants relatively thin, rest part, such as pneumatic shell, bulkhead structure, grid dividing then phase
To relatively thick.Finally obtained finite element model is as shown in Figure 9.The area submarine A as can be seen from Figure, i.e. pyramid dot matrix sandwich shell
The unit of hardened structure is thinner.The panel of this part, i.e. upper and lower panel and the first and second interlaminar board are drawn in each rib position axial direction
Divide 6 units, each Shell Finite Element is square, using PSHELL type；Topology selection Quad4.Top panel and the first interlayer
Plate unit is rectangle and triangle, using PSHELL type.The pyramid unit rod piece of sandwich layer then uses PBAR type, opens up
Flutter selection Bar2.Because the unit that rod piece is divided into 2 and 2 or more can just be brought it about plastic buckling, plastic yielding etc.
Failure mode, so each rod piece is divided into 2 units.The rest part of bay section model, including upper deck, pressure hull,
Pressure bulkhead, floor, supporting plate and main support structure etc. are established geometrical model according to the type conventional submarine drawing, and are divided
Unit.In order to improve the computational efficiency of computer and reduce scale of model, these structures have been carried out accordingly in modeling process
Simplify, and dividing elements are thicker.The structures such as floor, supporting plate, bulkhead, upper deck, pressure hull and outer housing use plate
Shell unit；The components such as T profile, flat-bulb steel use beam element.
2) determine operating condition: the antiknock that the present invention needs to improve hull structure using pyramid dot matrix sandwich coverboard structure is anti-
Impact property, but need that sandwich is made to be able to bear high hydrostatic pressure simultaneously.Therefore, hydrostatic pressing operating condition is chosen are as follows: in the area submarine A
The high hydrostatic pressure of (i.e. truss core coverboard structure) by waters both sides between external water area and the side of a ship, while pneumatic shell is by waters between the side of a ship
High hydrostatic pressure.In fact, submarine Shell Plate rest part is similarly subjected to the pressure on both sides, but it is single hull, both sides institute
This point is not embodied by counteracted by pressure, when so applying load in modeling.The limit depth of generally conventional power submarine is about
300m, calculating depth are 435m.So magnitude of load to be set to the calculating depth 435m of submarine diving.High hydrostatic pressure load applies
Partial picture it is as shown in Figure 10, Figure 11.
3) define boundary condition: the both ends of submarine bay section finite element model are clamped condition, i.e., to the inside and outside shell both ends of bay section
Node apply clamped constraint；
4) determination of constitutive model: being the static analysis functional analysis pyramid point using MSC.NASTRAN in the present invention
The anti-static pressure ability of battle array sandwich coverboard structure, each section is all made of linear material model in model, and material parameter is as shown in table 2:
Material parameter in 2 static analysis of table
| E/GPa | Poisson's ratio V | /(kg/m-3) |
| 210 | 0.3 | 7800 |
It is above-mentioned basis on, obtain bay section the model calculation, by the Stress Map result of bay section calculated result it is found that
The 435m hydraulic pressure that pyramid dot matrix sandwich coverboard structure two sides are applied by waters between external water area and the side of a ship simultaneously in bay section model, together
When pneumatic shell by 435m hydraulic pressure when, saddle is presented in the deformation of pyramid dot matrix sandwich coverboard structure, and part-structure presentation is answered
The case where power is concentrated, if the top stringers stress value at bay section both ends is 633MPa, plate and reality below truss core coverboard structure
Floor connecting place stress value is 496MPa, and submarine bottom shell plate ring rib 5a stress value is 507MPa.
Place that these stress are concentrated (in such as Fig. 6, Fig. 7, Fig. 8 1., 2., 3., 4. position, indicated with different shape in figure
Corresponding region position) increase in table 3 after the stiffener of size, pneumatic shell stress is less than 600MPa, remaining structural stress is less than
450MPa。
3 stiffener scheme of table
By calculation shows that: submarine bay section pyramid dot matrix sandwich coverboard structure both sides simultaneously by between external water area and the side of a ship
The 435m hydraulic pressure that waters applies, while when pneumatic shell is by 435m hydraulic pressure, pneumatic shell stress maximum value is 414MPa, is less than allowable
Stress, within safe range.For Shell Plate, the intersection of plate floor and truss core coverboard structure lower panel and
Bay section both ends top stringers stress is larger, and stress maximum value is 437MPa, within safe range.Pyramid dot matrix sandwich shell
The stress of the upper and lower panel of hardened structure and the first and second interlaminar board distributes as net shape with vertical bone 2a and rib cage 2b, with vertical bone 2a and
The part stress of rib cage 2b intersection is smaller, and the stress for indulging the grid middle section that bone 2a and rib cage 2b is formed is larger.Stress distribution
Size order are as follows: the stress of the stress < lower panel of the first interlaminar board of stress < of the stress < top panel of the second interlaminar board.Gold
The stress distribution of word tower dot matrix interlayer is smaller compared with the stress of the rib cage 2b rod piece being connected with vertical bone 2a, third layer dot matrix folder
Layer, i.e., sandwich layer stress adjacent with top panel is maximum, and maximum stress 341MPa is less than allowable stress, meets design needs.
By static analysis, and in subsequent designs after stiffener, for improved protection submarine bay segment model,
Under the high hydrostatic pressure for calculating the depth of water, maximum distortion 9.51mm is located at pneumatic shell upper end, and the maximum stress of plate unit is
437MPa, the top stringers positioned at bay section both ends, the maximum stress of beam element are 341MPa, positioned at the rod piece of sandwich layer, all in
In safe range.Prove that the submarine bay section for the installation pyramid dot matrix sandwich coverboard structure that the present invention designs is calculating the quiet of the depth of water
It is in a safe condition under hydraulic pressure, there is good anti-static pressure performance.
Further, on above-mentioned basis, the limit element artificial module of conventional submarine is established, it is calculated and explodes under water
Dynamic response process under operating condition, analyzes its capability of antidetonance, and with submarine bay section that pyramid dot matrix sandwich coverboard structure is housed
The capability of antidetonance compare.It is explosion operating condition, outer in conventional submarine finite element model for the capability of antidetonance both accurately compared
Between waters and the side of a ship setting in waters, Euler's primary condition, boundary condition, material constitutive model, cell attribute and operating condition all with it is preceding
Protect submarine finite element model consistent in text, details are not described herein again.
By sunykatuib analysis it is found that conventional submarine cargo tank structure is under water under the action of explosion wave, it is non-resistance to meet quick-fried face
The deformation of pressure shell diffuses to bay section both ends among bay section.Quick-fried face upper deck is met when 4ms, deformation takes place, with the distribution of crossbeam
It is corrugated, there is the part deformation of cross beam support smaller on upper deck.It carries on the back quick-fried face upper deck when 10ms to start to deform, this is mainly
Because meeting the effect of quick-fried face shock wave so that water is squeezed between the side of a ship, water is obtained between the side of a ship of huge energy in the short time from meeting quick-fried face
The quick-fried face of back is impacted, is being carried on the back by overstocking at quick-fried face upper deck, so that it is larger to carry on the back deformation at quick-fried face upper deck.Protect submarine
There is also same dynamic response phenomenons.In 40ms, the overall deformation of routine submarine bay section has tended towards stability, and takes the 40ms moment
The deformation of model is final deformation.The final maximum distortion of pneumatic shell is 208mm.
Under same operating condition, for protecting submarine, in the early period of overall deformation process, pneumatic shell meet the deformation in quick-fried face with
The distribution of outer rib cage 2b is corrugated, and in the later period of overall deformation process, undulatory deformation is no longer obvious, and it is recessed to meet quick-fried face presentation
Shape is cheated, due to the supporting role of plate floor, there are small one and large one two pits on pneumatic shell.In 40ms, the maximum of pneumatic shell
It is deformed into 63mm.Carrying on the back quick-fried face at this time has local deformation, this is mainly by between the side of a ship for having large energy that flows freely between the side of a ship
Water bring.Under real ship underwater explosion operating condition, water can not flow freely between the side of a ship between the side of a ship, therefore pneumatic shell carries on the back the change in quick-fried face
Shape can be smaller.Impact occur when, stress wave entirely meets quick-fried face from meeting quick-fried Middle face and travel to, then is transmitted to the quick-fried face of back.
In the early period of deformation process, there is stress concentration with the position intersected floor and rib cage 2b in pneumatic shell, and after deformation process
Phase has the stress of the position of floor and pallet support smaller instead on pneumatic shell.Reduce pneumatic shell under operating condition of exploding under water
Deformation is to design the main purpose of pyramid dot matrix sandwich coverboard structure, so using the final maximum distortion of pneumatic shell as evaluation
The index of conventional submarine and the protection submarine capability of antidetonance.The final maximum distortion such as table of the pneumatic shell of conventional submarine and protection submarine
Shown in 4, it can be seen that the capability of antidetonance of the submarine bay section of installation pyramid dot matrix sandwich coverboard structure is improved than conventional submarine
69.7%.
The comparison of 4 conventional submarine of table and the protection submarine capability of antidetonance
| Conventional submarine | Protect submarine | The capability of antidetonance improves ratio | |
| Pneumatic shell maximum distortion | 208mm | 63mm | 69.7% |
For the specific structure that the present invention convenient to carry out mentions, the application also provides submarine non-pressure hull pyramid dot matrix
Interlayer shock resistance structure design method comprising following steps:
Step 1: the step of to the division of conventional weak part, in particular to:
According to submarine hull cross section structure feature, it is classified as connecting positioned at the area A/area C of left/right topside with superstructure
The original non-pressure hull in the area A/area C is replaced into pyramid dot matrix interlayer coverboard by the area B and the square area D under ship connect
Structure；Typically, the aforementioned four region of submarine can be according to the variation of its basic structure and being partitioned into for functional area
Row segmentation, but the division of above-mentioned zone is not absolute design requirement, according to the practical impact conditions faced of submarine and some function
The special demands of energy and structure, also further can may be designed or be adjusted on above-mentioned basic division rule, this
Invention only provides basic design principle in overall design principle.
Step 2: the step of fenestral fabric in the area A, the area C is designed, in particular to:
For the framed plate structure of the non-pressure hull of conventional submarine, rib cage 2b and vertical bone 2a is installed on coverboard, using " block
Pyramid dot matrix sandwich coverboard structure is used on non-pressure hull by the method for brick ".Typically, conventional submarine bay section A
Other than floor and supporting plate, non-pressure hull is divided into latticed the non-pressure hull in area by rib cage 2b and vertical bone 2a.Not cut
Weak non-this body structure of pressure hull of conventional submarine is principle, sets band steel for bone while increasing the vertical bone 2a of same band steel, and
Increase in right amount, so that pyramid dot matrix structure is embeddable in grid.
Step 3: the step of to the dot matrix sandwich design in the area A, the area C, in particular to:
As shown in figure 12, vertical bone 2a and the design of rib cage 2b height is equal, so that the hardened structure of pyramid dot matrix sandwich(-type) shell
Vertical bone 2a and rib cage 2b is staggered to form rectangular parallelepiped grid one by one, and pyramid dot matrix structure is embedded into grid；Golden word
Four deck panels of the hardened structure of tower dot matrix sandwich(-type) shell from inside to outside be respectively lower panel, the first interlaminar board 3c, the second interlaminar board 3b, on
Panel, top panel are former non-pneumatic shell coverboard；Lower panel, pyramid dot matrix knot are successively installed according to sequence from inside to outside
Structure, the first interlaminar board 3c, pyramid dot matrix structure, the second interlaminar board 3b, pyramid dot matrix structure and top panel, in mounting surface
Plate is mounted on to the corresponding position of vertical bone 2a and rib cage 2b during plate；
Step 4: the area A, the area C and the area B, the area D connecting structure the step of, in particular to:
Make non-pressure hull the area B and the area D be consistent with the non-pneumatic shell of conventional submarine, each rib cage 2b and the area A of the area B and the area D
It is corresponding with the position rib cage 2b in the area C, wherein the floor every four areas Ge Leiwei A, the area C and the area B, the area D is interconnected to form ring rib
5a；Using the most marginal stringers web in the area B and the area D as the final position in the area A and the area C dot matrix sandwich.
In order to avoid shell structure surface stress is excessively concentrated, also increasing bracket in each rib position in the present embodiment with mistake
Cross support.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the invention, rather than to this hair
It is bright create protection scope limitation, although being explained in detail referring to preferred embodiment to the invention, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the invention, without departing from this
The spirit and scope of innovation and creation technical solution.
Claims (9)
1. a kind of non-pressure hull pyramid dot matrix interlayer shock resistance structure of submarine, the non-pressure hull refer to Double-casing submarine
Outer housing, which is characterized in that
The non-pressure hull is by positioned at the area A/area C of submarine left/right topside, the area B at the top of submarine and positioned at submarine
The area D of bottom is constituted；The area A, the area B, the area C, the area D, which are sequentially connected, surrounds the non-pressure hull of complete submarine；
The area A and the area C are the hardened structure of pyramid dot matrix sandwich(-type) shell, the hardened structure of pyramid dot matrix sandwich(-type) shell by four deck panels and
Pyramid dot matrix between each panel is constituted；Including outer panels on the outermost side, be located at innermost inner panel and
The first interlaminar board being arranged from inside to outside between outer panels and inner panel and the second interlaminar board；It is arranged between adjacent panel
There are vertical bone and rib cage；Vertical bone extends along submarine hull head and the tail are longitudinal, rib cage perpendicular to vertical bone circumferentially；On vertical bone and rib cage
Panel is provided with to constitute confined space；Vertical bone and rib cage position between each deck panels are mutually perpendicular to intersect to support and connect
The hardened structure of pyramid dot matrix sandwich(-type) shell, vertical bone and rib cage intersect and constitute more networks；
Panel of each network respectively with above and below surrounds rectangular parallelepiped structure；Pyramid is embedded in each rectangular parallelepiped structure
Cellular construction, pyramid cellular construction are the Pyramid that four bar members are constituted, adjacent pyramid unit bottom surface fulcrum or top
Point is interconnected to constitute pyramid dot matrix；Four fulcrums of pyramid unit bottom surface are overlapped with four angles of grid respectively；
The area B and the area D are conventional non-pressure hull structure, and the area B is connect with superstructure, and the area D is bottom structure.
2. the non-pressure hull pyramid dot matrix interlayer shock resistance structure of a kind of submarine according to claim 1, which is characterized in that
It is set as complete topside floor every four rib positions in the area A and the area C, remaining rib position is set as point of multistage support board structure
Section rib cage；Complete floor is connected with the rib cage in the area B and the area D respectively constitutes ring rib, and ring rib is separated by four rib positions, is between ring rib
Equally distributed segmentation rib cage.
3. the non-pressure hull pyramid dot matrix interlayer shock resistance structure of a kind of submarine according to claim 1, which is characterized in that
The height of the hardened structure of pyramid dot matrix sandwich(-type) shell, which is less than between pressure hull and non-pressure hull, loads the three of water tank height
/ mono-.
4. the non-pressure hull pyramid dot matrix interlayer shock resistance structure of a kind of submarine according to claim 1, which is characterized in that
Air or foam stuffing are full of in each rectangular parallelepiped structure.
5. the non-pressure hull pyramid dot matrix interlayer shock resistance structure of a kind of submarine according to claim 1, which is characterized in that
In the pyramid supporter, the length of bar member is 100mm, and bar member diameter 15.2mm, each bar is first and it is in inner panel
The angle of projection be 45 degree, pyramid bottom surface is square, side length 100mm, is by the pyramidal height that bar member forms
70.72mm。
6. the non-pressure hull pyramid dot matrix interlayer shock resistance structure of a kind of submarine according to claim 1, which is characterized in that
The outer panels of the hardened structure of pyramid dot matrix sandwich(-type) shell are the Shell Plate of submarine, and thickness range is 5mm to 8mm；Inner panel
Thickness range is 5mm to 8mm, and inner panel thickens with the increase close to hull bottom degree.
7. the non-pressure hull pyramid dot matrix interlayer shock resistance structure design method of submarine, which is characterized in that include the following steps
Step 1, to the division of conventional weak part the step of, in particular to:
According to submarine hull cross section structure feature, it is classified as positioned at the area A/area C of left/right topside, the B being connect with superstructure
The original non-pressure hull in the area A/area C is replaced into the hardened structure of pyramid dot matrix sandwich(-type) shell by area and the square area D under ship；
Step 2, the step of fenestral fabric in the area A, the area C is designed, in particular to:
Not weaken non-this body structure of pressure hull of conventional submarine as principle, rib cage is changed to band steel from T profile, and is added in right amount
Height, and increase vertical bone, vertical bone is also configured as band steel, so that pyramid dot matrix structure is embeddable in grid；
Step 3, to the dot matrix sandwich design in the area A, the area C the step of, in particular to:
Vertical bone and the design of rib cage height is equal, so that the vertical bone and rib cage of the hardened structure of pyramid dot matrix sandwich(-type) shell are staggered to form one
Each and every one grid, and pyramid dot matrix structure is embedded into grid；Four deck panels of the hardened structure of pyramid dot matrix sandwich(-type) shell from
Interior arrive is respectively lower panel, the first interlaminar board, the second interlaminar board, top panel outside, and top panel is former non-pneumatic shell coverboard；According to
Sequence from inside to outside successively installs lower panel, pyramid dot matrix structure, the first interlaminar board, pyramid dot matrix structure, the second layer
Between plate, pyramid dot matrix structure and top panel, plate is mounted on to the corresponding positions of vertical bone and rib cage during panel is installed
It sets；
Step 4, the area A, the area C and the area B, the area D connecting structure the step of, in particular to:
Make non-pressure hull the area B and the area D be consistent with the non-pneumatic shell of conventional submarine, each rib cage in the area B and the area D and the area A and the area C
Rib cage position is corresponding, wherein the floor every four areas Ge Leiwei A, the area C and the area B, the area D is interconnected to form ring rib；With the area B and D
Final position of the most marginal stringers web in area as the area A and the area C dot matrix sandwich.
8. the non-pressure hull pyramid dot matrix interlayer shock resistance structure design method of submarine according to claim 7, feature exist
In in each rib position, increase bracket is supported with transition.
9. the non-pressure hull pyramid dot matrix interlayer shock resistance structure design method of submarine according to claim 7, feature exist
In, further include, below the top stringers at bay section both ends, plate floor and pyramid dot matrix sandwich coverboard structure plate connecting place,
Plate is respectively set with plate floor connecting place, the non-pressure-resistant girdle rib position in submarine bottom below pyramid dot matrix sandwich coverboard structure
The step of stiffener.
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