CN103603372A - Multi-plane cylindrical shell structure with reinforced folded corners - Google Patents
Multi-plane cylindrical shell structure with reinforced folded corners Download PDFInfo
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- CN103603372A CN103603372A CN201310601976.XA CN201310601976A CN103603372A CN 103603372 A CN103603372 A CN 103603372A CN 201310601976 A CN201310601976 A CN 201310601976A CN 103603372 A CN103603372 A CN 103603372A
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Abstract
The invention discloses a multi-plane cylindrical shell structure with reinforced folded corners. The multi-plane cylindrical shell structure comprises spherical seal heads, transition sections, polygonal spatial plates and reinforcing plates or reinforcing rods or reinforcing solid structures. The reinforcing plates or the reinforcing rods or the other reinforcing solid structures are arranged on folded corner sunken portions on a cylindrical shell structure, and the folded corner sunken portions are formed by the polygonal spatial plates. Compared with a multi-plane cylindrical shell structure in the prior art, the multi-plane cylindrical shell structure with the reinforced folded corners has the advantages that the multi-plane cylindrical shell structure is good in pressure-resistant property, can bear high ultimate pressure as compared with the multi-plane cylindrical shell structure in the prior art under the condition of identical geometry and material parameters, and is applicable to manufacturing pressure-resistant structures in underwater or underground systems.
Description
Technical field
The present invention relates to compression-resistant structure field, particularly the compression-resistant structure field under water or in underground system.
Background technology
For strengthening under water or the critical external compressive resistance ability of structure in underground system, conventionally can in form of structure, do some special design or use and strengthen structure.U.S. patent of invention US005711244 discloses a kind of many plane cylinder shell structure with stronger critical external compressive resistance ability, the columnar part of this structure is that plane plate is spatially spliced by some cycles is folding, afterbody is ball sealing header structure, columnar part is connected by changeover portion with ball sealing head, forms the similar post shell structure of a sealing.
Under this many plane cylinder shell structure form, because plane plate is spatially folding splicing, thereby increased the bending resistance moment of inertia of post shell structure, many plane cylinder shell structure is done the used time being subject to external pressure, and anti-unstability ability and anti-defect ability are stronger.In addition, due to this structure columnar part (axially) indention along its length, do the used time being subject to external pressure, it is additional bending moment that structure can produce an additional force couple vertically, under this additional bending moment effect, structure inevitably can produce corner radial, thereby produces axial additional displacement, destroyed the plane pressure-bearing rigidity of general cylindrical shell, the axial rigidity of structure is reduced.Meanwhile, in zigzag knuckle place flexural stress, increase.In addition, each plane plate of many planes columnar part can produce " cusp " a series of how much in splicing Shi， intersection, and this geometrical property makes structure have comparatively significantly stress and concentrate in cusp place under external pressure.
Summary of the invention
Based on above-mentioned defect, technical problem to be solved by this invention is to improve existing many plane cylinder shell structure axial rigidity deficiency, knuckle place flexural stress and the too concentrated defect of cusp place stress, propose a kind of reinforcement mode of many plane cylinder shell structure, thereby obtain many plane cylinder shell structure that a kind of compressive property is good, axial rigidity is high, cusp stress concentrates relatively weak novel local to strengthen.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of knuckle strengthens many plane cylinder shell structure, described many plane cylinder shell structure comprises ball sealing head, changeover portion, polygon space plate, described polygon space plate is spatially to be folded and be spliced by a plurality of plane plates, form the columnar part of described many plane cylinder shell structure, described ball sealing head is positioned at the afterbody of many plane cylinder shell structure, described columnar part is connected by changeover portion with described ball sealing head, it is characterized in that: described many plane cylinder shell structure also comprises stiffener, bracing piece and/or other reinforcement entity (4), described stiffener, bracing piece and/or the knuckle depressed part that by polygon space plate formed of other reinforcement entity setting up on described post shell structure.
Wherein, described stiffener is any one or more in flat board, bent plate, flap.
Wherein, described stiffener seals knuckle depressed part or do not seal.
Wherein, it is with a bar, to keep flat or tiltedly put reinforcement at knuckle place that described bracing piece is strengthened, or at a knuckle place, uses many bars to keep flat or intersect and strengthen.
Wherein, described other reinforcement entity is strengthened by entity structure being enriched to knuckle depressed part.
According to knuckle of the present invention, strengthen novel many plane cylinder shell structure many plane cylinder shell structure more of the prior art and have larger axial rigidity, the weak concentrated superperformance of stress, knuckle strengthens the more common many plane cylinder shell structure of novel many plane cylinder shell structure better withstand voltage properties.Under identical geometry and material parameter, the limiting pressure that the novel many plane cylinder shell structure of knuckle enhancing can bear is larger.Therefore, form of structure of the present invention is suitable for the pressure-resistance structure under water or in underground system for preparation.
Accompanying drawing explanation
Fig. 1 is according to the local schematic diagram of strengthening many plane cylinder shell structure of the present invention;
Fig. 2 is partial cross section's sectional drawing of Fig. 1;
Fig. 3 is first embodiment of the invention schematic diagram;
Fig. 4 is second embodiment of the invention schematic diagram;
Fig. 5 is third embodiment of the invention schematic diagram;
Fig. 6 is the computation model figure of many plane cylinder shell structure in prior art;
Fig. 7 is the computation model figure of strengthened many plane cylinder shell structure in the present invention.
In figure: 1, ball sealing head 2, changeover portion 3, polygon space plate 4, reinforcement entity.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
Fig. 1 is the local schematic diagram of strengthening many plane cylinder shell structure of the present invention, and Fig. 2 is the M-M along Fig. 1, partial cross section's sectional drawing of N-N, and Fig. 3-5 have shown respectively according to local many plane cylinder shell structure of strengthening of the present invention.
As shown in Figure 3, according to the part of first embodiment of the invention, strengthening many plane cylinder shell structure is comprised of ball sealing head 1, changeover portion 2, polygon space plate 3, reinforcement bent plate 4.
As shown in Figure 4, according to the part of second embodiment of the invention, strengthening many plane cylinder shell structure is comprised of ball sealing head 1, changeover portion 2, polygon space plate 3, reinforcement dull and stereotyped 4.
As shown in Figure 5, according to the part of third embodiment of the invention, strengthening many plane cylinder shell structure is comprised of ball sealing head 1, changeover portion 2, polygon space plate 3, bracing piece 4.
With instantiation, set up the model of reinforcing prop shell structure of the present invention and many plane cylinder shell structure of the prior art below, calculating is under identical geometry and material parameter, steady-error coefficient while being subject to identical external applied load, in order to illustrate the advantage place of the more common many planes cylindrical shell structure of the present invention.
1, geometrical model
As shown in Fig. 6-7, computation model comprises many plane cylinder shell of unstrengthened many planes reinforcing prop shell and reinforcement.Two kinds of post shells are in full accord except local reinforcing section.In the present embodiment, physical dimension is preferably as follows:
Length: L=1160mm wherein ball sealing head accounts for overall length 360mm, and changeover portion accounts for the 80mm of overall length, and many plane cylinder shell partly accounts for the 720mm of overall length; Radius: R=180mm; Thickness: t=2mm
In this example, stiffener is arranged to 10mm directly over external surface plate intersection.
Load the way of restraint: 1) do not strengthen many plane cylinder shell
The way of restraint: constraint post shell is 6 degree of freedom of ball sealing crown point on one side, and inertia discharges.
Load: at whole external surface (inner surface), apply well-distributed pressure, size is 1MPa.
2) strengthen many plane cylinder shell
The way of restraint: constraint post shell is 6 degree of freedom of ball sealing crown point on one side, and inertia discharges.
Load: except all plate external surfaces (inner surface) outside stiffener, apply well-distributed pressure, size is 1MPa.
2, result
Calculate respectively the response of two kinds of post shells in interior pressure and external pressure situation.Mises stress, axial displacement, the circumferential displacement result that can obtain columnar part, result is if table 1 is to as shown in table 3.
In identical external pressure (interior pressure) situation, the maximum stress of the many planes columnar part after strengthening can reduce approximately 36% as can be seen from Table 1.Meanwhile, make cusp place stress concentrate situation to relax to some extent, make plate upper stress distribution uniform, material is fully used.
Table 1 columnar part maximum stress result
Table 2 columnar part maximum radial displacement result
Table 3 columnar part maximum axial displacement result
In identical external pressure (interior pressure) situation, the maximum radial displacement that the many planes after strengthening are strengthened columnar part can reduce approximately 37% as can be seen from Table 2, and radial rigidity has obtained enhancing.
In identical external pressure (interior pressure) situation, after strengthening, the maximum axial displacement of large many planes reinforcement columnar parts reduces approximately 40% as can be seen from Table 3, and axial rigidity is enhanced.Prove that this mode can effectively solve weak this defect of many planes reinforcing prop shell axial rigidity.
In sum, many planes reinforcing prop shell part is strengthened, can effectively be solved that its axial rigidity is not enough, the stress defect such as defect too.And can further strengthen its advantage.
Below be only to adopt concrete size to carry out actual verification explanation to the effect of structure of the present invention in the present embodiment, in order to the enhancing effect of this mechanism to be described, but do not represent that structure of the present invention can only adopt above-mentioned size, do not represent that the post shell of said structure can only produce the parameter value of the cited concrete numerical values recited of above-described embodiment yet, in fact, as long as there is the knuckle of said structure, strengthen many plane cylinder, no matter adopt in actual applications which kind of size, it can reach and have axial rigidity, the concentrated superperformance of stress, more common many plane cylinder shell structure has better withstand voltage properties.
It should be noted that, this specific embodiment is only in order to explain that the present invention is and unrestricted, and object is to make technical scheme of the present invention and advantage be able to manifest more clearly.Be to be understood that, two kinds of embodiments described above not give expression to all according to strengthening form of the present invention, just as previously mentioned, any strengthening form with stress distribution under many plane cylinder of enhancing shell structure axial rigidity, uniform external effect is all considered as concept and range of the present invention.
Claims (5)
1. a knuckle strengthens many plane cylinder shell structure, described many plane cylinder shell structure comprises ball sealing head (1), changeover portion (2), polygon space plate (3), described polygon space plate is spatially to be folded and be spliced by a plurality of plane plates, form the columnar part of described many plane cylinder shell structure, described ball sealing head is positioned at the afterbody of many plane cylinder shell structure, described columnar part is connected by described changeover portion with described ball sealing head, it is characterized in that: described many plane cylinder shell structure also comprises stiffener, bracing piece and/or other reinforcement entity (4), described stiffener, bracing piece and/or the knuckle depressed part that by polygon space plate formed of other reinforcement entity setting up on described post shell structure.
2. structure according to claim 1, wherein said stiffener is any one or more in flat board, bent plate, flap.
3. according to the structure described in claim 1 and 2, wherein said stiffener seals knuckle depressed part or do not seal.
4. structure according to claim 1, it is with a bar, to keep flat or tiltedly put reinforcement at knuckle place that wherein said bracing piece is strengthened, or at knuckle place many bars of use, keeps flat or intersect and strengthen.
5. structure according to claim 1, wherein said other strengthened entity and strengthened by entity structure being enriched to knuckle depressed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310601976.XA CN103603372B (en) | 2013-11-23 | 2013-11-23 | A kind of knuckle strengthens many plane cylinder shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310601976.XA CN103603372B (en) | 2013-11-23 | 2013-11-23 | A kind of knuckle strengthens many plane cylinder shell structure |
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| Publication Number | Publication Date |
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| CN103603372A true CN103603372A (en) | 2014-02-26 |
| CN103603372B CN103603372B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310601976.XA Active CN103603372B (en) | 2013-11-23 | 2013-11-23 | A kind of knuckle strengthens many plane cylinder shell structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122470A (en) * | 2016-08-12 | 2016-11-16 | 华中科技大学 | A kind of many planes pressure-resistance structure |
| CN109855021A (en) * | 2019-01-04 | 2019-06-07 | 嘉兴星创科技有限公司 | A kind of LED fish-luring light |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081970A (en) * | 1976-03-23 | 1978-04-04 | Golder Hoek And Associates Limited | Underwater structure |
| US5711244A (en) * | 1995-10-06 | 1998-01-27 | Knapp; Ronald H. | Polyhedrally stiffened cylindrical (PC) pressure hull |
| CN2779249Y (en) * | 2005-02-06 | 2006-05-10 | 河南德润锅炉有限公司 | Embedding vacuum boiler combined barrel |
| CN102182207A (en) * | 2011-04-08 | 2011-09-14 | 中国船舶重工集团公司第七○二研究所 | Assembled annular structure |
| CN203729333U (en) * | 2013-11-23 | 2014-07-23 | 华中科技大学 | Multi-plane cylindrical shell structure with reinforced folded corners |
-
2013
- 2013-11-23 CN CN201310601976.XA patent/CN103603372B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081970A (en) * | 1976-03-23 | 1978-04-04 | Golder Hoek And Associates Limited | Underwater structure |
| US5711244A (en) * | 1995-10-06 | 1998-01-27 | Knapp; Ronald H. | Polyhedrally stiffened cylindrical (PC) pressure hull |
| CN2779249Y (en) * | 2005-02-06 | 2006-05-10 | 河南德润锅炉有限公司 | Embedding vacuum boiler combined barrel |
| CN102182207A (en) * | 2011-04-08 | 2011-09-14 | 中国船舶重工集团公司第七○二研究所 | Assembled annular structure |
| CN203729333U (en) * | 2013-11-23 | 2014-07-23 | 华中科技大学 | Multi-plane cylindrical shell structure with reinforced folded corners |
Non-Patent Citations (1)
| Title |
|---|
| 姜舜: "复合材料的多平面加强柱壳结构研究", 《中国学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122470A (en) * | 2016-08-12 | 2016-11-16 | 华中科技大学 | A kind of many planes pressure-resistance structure |
| CN109855021A (en) * | 2019-01-04 | 2019-06-07 | 嘉兴星创科技有限公司 | A kind of LED fish-luring light |
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| Publication number | Publication date |
|---|---|
| CN103603372B (en) | 2015-09-23 |
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