CN205327334U - Aggregate through hole pass structure of boats and ships bulkhead board - Google Patents
Aggregate through hole pass structure of boats and ships bulkhead board Download PDFInfo
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- CN205327334U CN205327334U CN201521016014.9U CN201521016014U CN205327334U CN 205327334 U CN205327334 U CN 205327334U CN 201521016014 U CN201521016014 U CN 201521016014U CN 205327334 U CN205327334 U CN 205327334U
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Abstract
The utility model discloses an aggregate through hole pass structure of boats and ships bulkhead board, level straight line including being located these through hole opening both sides is located the first pitch arc of left sharp end connection, and the second pitch arc is connected to first pitch arc upper end, and first oval is connected to second pitch arc upper end, and the third circular arc is connected to the right lower extreme of this first oval, and the fourth circular arc is connected to the lower extreme of third circular arc, and this fourth circular arc other end is connected with the straight line on through hole opening right side, and the through hole is the asymmetric hole. To marine asymmetric aggregate, reduce hole -edge stress concentration coefficient, improve boats and ships fatigue strength, to the frequent toe of weld root that appears at the stiffener of crackle, the normal method of getting rid of the stiffener that adopts of new -type design nevertheless can arouse the hole -edge stress improvement. Adopt this pass to reduce the stress concentration point when reducing coefficient of stress concentration, satisfy new -type designing requirement to tired source has been reduced, the current new -type pass of pass is fixed a position easily, and processing is convenient.
Description
Technical field
This utility model relates to technical field of ships, specifically the aggregate through hole pass structure of a kind of ship cabin wallboard。
Background technology
In order to ensure the seriality of longitudinal aggregate in boats and ships, it is necessary to cross member is carried out perforate。It is many that this type of perforate has quantity, the feature of complex process。Traditional Ship Structure perforate mainly has circle, oval, oval diplodal, and tradition perforate hole-edge stress concentration degree is higher。Along with the development trend of larger-sized vessel, large, existing pass can not meet the development need of following Ship Structure。
For this type of aggregate through hole, it is limited primarily by and connects the vertical power of weld seam transmission between bone and crossing frame, and stress in the face caused by the external applied loads such as hydraulic pressure。By changing the geometry of perforate, the way such as radius of curvature of increase transition arc streamlined, suitable is namely adopted to optimize perforate, it is possible to reduce the largest hole limit factor of stress concentration, improve the purpose of fatigue strength。
According to another statistics, in boats and ships, 70% fatigue crack occurs in this type of vertical bone and passes through transverse frame structure。For the toe of weld root that the stiffener of crackle is connected with aggregate the most often occurs, current partial design adopts to be removed stiffener or makes stiffener and the contactless method of aggregate to prevent this type of crackle, but do so can make the weld seam stress between crossing frame and angle steel increase, thus causing the rising of tapping stress level。Currently also there is the new pass that this type of aggregate through hole pass is optimized design。But only the optimization of T profile aggregate through hole is designed, owing to T profile is symmetrical structure, so it is also symmetrical for designing the perforate pass through bulkhead plate, at present for adopting new-type flat-bulb steel to there is no research through the perforate pass of bulkhead plate。And if directly use flat-bulb steel, this type of pass to fail to take into full account the feature of flat-bulb steel asymmetry new-type T profile aggregate grooved bore pass, there is stress relatively too high, the feature that high stress concentrations point is too much。
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, this utility model provides the aggregate through hole pass structure of a kind of ship cabin wallboard。
Technical scheme: for solving above-mentioned technical problem, the aggregate through hole pass structure of a kind of ship cabin wallboard of the present utility model, including the horizontal linear being positioned at these through hole opening both sides, the linear end being positioned at left side connects the first camber line, first camber line upper end connects the second camber line, second camber line upper end connects upper half oval, the bottom righthand side of this upper half oval connects three-arc, the lower end of three-arc connects the 4th circular arc, the 4th circular arc other end is connected with the straight line on the right side of through hole opening, and through hole is asymmetric hole。
Further, the length l of the horizontal linear on the left of described through hole opening3Length l with the horizontal linear in left side4Equal。
Further, described aggregate is flat-bulb steel, the distance h between the horizontal linear of flat-bulb steel upper surface and through hole opening both sides1=1.5 (b-R), l3=l4=0.3 (b-R), wherein b is the width of flat-bulb steel, and R is the Probe-radius of flat-bulb steel, and flat-bulb steel height is d。
Further, described 4th arc radius r4With the first arc radius r1Meet r1=0.4 (b-R) r4=1.8r1, the second arc radius r2With three-arc radius r3Meet r2=4 (b-R)；R3=3 (b-R)；Ry=b-R, wherein ryOval radius for upper half oval。
Further, upper half oval straight line is positioned at distance above flat-bulb steel upper surface is h2=0.5ry=0.5 (b-R), it is h that described upper half oval center of circle vertical position is positioned at from distance below flat-bulb steel upper surface2Place, horizontal level is that distance aggregate web both sides are respectively for l1+ t, l2+ t, wherein, l1、l2For with the both sides of through hole lower openings for the distance that benchmark is horizontal-extending toward both sides, l2=3l1=1.2 (b-R)；Wherein b=16mm～55mm, t are the distance between the both sides of flat-bulb steel web both sides and through hole lower openings。
Further, described first circular arc, the center of circle of the 4th circular arc are in same level height with the horizontal linear of through hole opening both sides, and the first circular arc radian is θ1=150 °, the 4th circular arc radian is θ2=135 °。
Distance t=2mm between the both sides of flat-bulb steel web both sides and through hole lower openings。
Beneficial effect: the aggregate through hole pass structure of ship cabin wallboard of the present utility model, for asymmetric aggregate peculiar to vessel, reduces hole-edge stress concentration coefficient, improves Research of fatigue strength of vessel；Crackle being frequently appeared in the toe of weld root of stiffener, most straightforward approach is exactly remove the stiffener in structure, but such that the stress of tapping concentrates raising, be can ensure that the safety of this type of design by new pass；Adopt this pass can reduce stress concentration point while reducing the factor of stress concentration, thus decreasing tired source；The more existing new-type pass of pass easily positions, easy to process。By using this pass, it is possible to reducing perforate hole-edge stress concentration degree, so that the fatigue life of sheet material is longer, design safety is higher。
Accompanying drawing explanation
Fig. 1 is that this utility model new pass assembling flat-bulb steel does not weld front pass schematic diagram；
Fig. 2 is the schematic diagram that boats and ships aggregate is fixed through bulkhead plate assembling；
Fig. 3 is boats and ships flat-bulb steel perforate pass schematic diagram in prior art；
Fig. 4 is boats and ships angle steel perforate pass schematic diagram in prior art；
A new-type boats and ships T profile aggregate through hole pass schematic diagram in Fig. 5 prior art。
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described。
As shown in Figure 1 to Figure 3, a kind of aggregate through hole pass structure of ship cabin wallboard, including the horizontal linear being positioned at these through hole opening both sides, the linear end being positioned at left side connects the first camber line, and the first camber line upper end connects the second camber line, and the second camber line upper end connects upper half oval, the bottom righthand side of this upper half oval connects three-arc, the lower end of three-arc connects the 4th circular arc, and the 4th circular arc other end is connected with the straight line on the right side of through hole opening, and through hole is asymmetric hole。The length l of the horizontal linear on the left of through hole opening3Length l with the horizontal linear in left side4Equal。
As shown in Figure 1 and Figure 2, the distance h when aggregate is flat-bulb steel, between the horizontal linear of flat-bulb steel upper surface and through hole opening both sides1=1.5 (b-R), l3=l4=0.3 (b-R), wherein b is the width of flat-bulb steel, and R is the Probe-radius of flat-bulb steel, and flat-bulb steel height is d。4th arc radius r4With the first arc radius r1Meet r4=2r1=0.8 (b-R), the second arc radius r2With three-arc radius r3Meet r2=r3=3ry=3 (b-R), wherein ryOval radius for upper half oval。It is h that upper half oval straight line is positioned at distance above flat-bulb steel upper surface2=0.5ry=0.5 (b-R), it is h that described upper half oval center of circle vertical position is positioned at from distance below flat-bulb steel upper surface2Place, horizontal level is that distance aggregate web both sides are respectively for l1+ t, l2+ t, wherein, l1、l2For with the both sides of through hole lower openings for the distance that benchmark is horizontal-extending toward both sides, l2=3l1=1.2 (b-R)；Wherein b=16mm～55mm, t are the distance between the both sides of flat-bulb steel web both sides and through hole lower openings, t=2mm。
First circular arc, the center of circle of the 4th circular arc are in same level height with the horizontal linear of through hole opening both sides, and the first circular arc radian is θ1=150 °, the 4th circular arc radian is θ2=135 °。
Following table provides this type of bore size (unit: millimeter) of flat-bulb steel under typical sizes:
| b | R | h1 | h2 | r1 | r2 | r3 | ry | l1 | l3 | t |
| 16 | 2.5 | 3.37 | 10.12 | 2.7 | 27 | 20.25 | 6.75 | 2.7 | 2.02 | 2 |
| 30 | 5 | 6.25 | 18.75 | 5 | 50 | 37.5 | 12.5 | 5 | 3.75 | 2 |
| 44 | 8 | 9 | 27 | 7.2 | 72 | 54 | 18 | 7.2 | 5.4 | 2 |
| 55 | 9.5 | 11.37 | 34.12 | 9.1 | 91 | 68.25 | 22.75 | 9.1 | 6.82 | 2 |
Note: r4=1.8r1, l2=3l1, l3=l4。For calculating gained selection of dimension arithmetic point front two in practical engineering application, different parameters can be had to design according to practical situation。
Pass through finite element software, new-type perforate can be calculated in conjunction with S-N curve and be compared to original pass, its tired time limit significantly improves, can be obtained through calculating contrast by each typical case perforate with prior art, this new-type open hole fatigue time limit is doubled compared with perforate shown in Fig. 4, this new open cell type fatigue time limit improves 75% compared with perforate shown in Fig. 5, by contrasting it appeared that the new-type open hole fatigue time limit improves significantly than existing pass with prior art pass。To this, it has been found that by using new pass can improve safety under the premise ensureing economy。
Below it is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; under the premise without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model。
Claims (7)
1. the aggregate through hole pass structure of a ship cabin wallboard, it is characterized in that: include being positioned at the horizontal linear of these through hole opening both sides, the linear end being positioned at left side connects the first camber line, first camber line upper end connects the second camber line, second camber line upper end connects upper half oval, and the bottom righthand side of this upper half oval connects three-arc, and the lower end of three-arc connects the 4th circular arc, the 4th circular arc other end is connected with the straight line on the right side of through hole opening, and through hole is asymmetric hole。
2. the aggregate through hole pass structure of ship cabin wallboard according to claim 1, it is characterised in that: the length l of the horizontal linear on the left of described through hole opening3Length l with the horizontal linear in left side4Equal。
3. the aggregate through hole pass structure of ship cabin wallboard according to claim 1 and 2, it is characterised in that: described aggregate is flat-bulb steel, the distance h between the horizontal linear of flat-bulb steel upper surface and through hole opening both sides1=1.5 (b-R), l3=l4=0.3 (b-R), wherein b is the width of flat-bulb steel, and R is the Probe-radius of flat-bulb steel, and flat-bulb steel height is d。
4. the aggregate through hole pass structure of ship cabin wallboard according to claim 3, it is characterised in that: described 4th arc radius r4With the first arc radius r1Meet r1=0.4 (b-R)；R4=1.8r1, the second arc radius r2With three-arc radius r3Meet r2=4 (b-R)；R3=3 (b-R)；Ry=(b-R), wherein ryOval radius for upper half oval。
5. the aggregate through hole pass structure of ship cabin wallboard according to claim 4, it is characterised in that: it is h that upper half oval straight line is positioned at distance above flat-bulb steel upper surface2=0.5ry=0.5 (b-R), it is h that described upper half oval center of circle vertical position is positioned at from distance below flat-bulb steel upper surface2Place, horizontal level is that distance aggregate web both sides are respectively for l1+ t, l2+ t, wherein, l1、l2For with the both sides of through hole lower openings for the distance that benchmark is horizontal-extending toward both sides, l2=3l1=1.2 (b-R)；Wherein b=16mm～55mm, t are the distance between the both sides of flat-bulb steel web both sides and through hole lower openings。
6. the aggregate through hole pass structure of ship cabin wallboard according to claim 5, it is characterised in that: described first circular arc, the center of circle of the 4th circular arc are in same level height with the horizontal linear of through hole opening both sides, and the first circular arc radian is θ1=150 °, the 4th circular arc radian is θ2=135 °。
7. the aggregate through hole pass structure of ship cabin wallboard according to claim 5, it is characterised in that: the distance t=2mm between the both sides of flat-bulb steel web both sides and through hole lower openings。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016014.9U CN205327334U (en) | 2015-12-09 | 2015-12-09 | Aggregate through hole pass structure of boats and ships bulkhead board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016014.9U CN205327334U (en) | 2015-12-09 | 2015-12-09 | Aggregate through hole pass structure of boats and ships bulkhead board |
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| Publication Number | Publication Date |
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| CN205327334U true CN205327334U (en) | 2016-06-22 |
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| CN201521016014.9U Withdrawn - After Issue CN205327334U (en) | 2015-12-09 | 2015-12-09 | Aggregate through hole pass structure of boats and ships bulkhead board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620657A (en) * | 2015-12-09 | 2016-06-01 | 江苏科技大学 | Aggregate through hole pattern structure of ship cabin wall plate |
| CN109204696A (en) * | 2018-08-30 | 2019-01-15 | 广船国际有限公司 | Ship girder web structure and Ship Structure |
| CN109436213A (en) * | 2018-10-26 | 2019-03-08 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Empty cabin inner platform open-celled structure is isolated in molten stainless steel freighter |
| CN109911104A (en) * | 2019-03-29 | 2019-06-21 | 广船国际有限公司 | Ship siding through hole and its open up method and boat segmental building technology |
| CN115042916A (en) * | 2022-07-29 | 2022-09-13 | 广船国际有限公司 | Installation component of acoustic equipment and ship |
-
2015
- 2015-12-09 CN CN201521016014.9U patent/CN205327334U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620657A (en) * | 2015-12-09 | 2016-06-01 | 江苏科技大学 | Aggregate through hole pattern structure of ship cabin wall plate |
| CN109204696A (en) * | 2018-08-30 | 2019-01-15 | 广船国际有限公司 | Ship girder web structure and Ship Structure |
| CN109436213A (en) * | 2018-10-26 | 2019-03-08 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Empty cabin inner platform open-celled structure is isolated in molten stainless steel freighter |
| CN109911104A (en) * | 2019-03-29 | 2019-06-21 | 广船国际有限公司 | Ship siding through hole and its open up method and boat segmental building technology |
| CN115042916A (en) * | 2022-07-29 | 2022-09-13 | 广船国际有限公司 | Installation component of acoustic equipment and ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20180706 |