WO2021061059A1 - A profile (bulb flat) developed for the shipbuilding industry and all structural constructions - Google Patents
A profile (bulb flat) developed for the shipbuilding industry and all structural constructions Download PDFInfo
- Publication number
- WO2021061059A1 WO2021061059A1 PCT/TR2019/050908 TR2019050908W WO2021061059A1 WO 2021061059 A1 WO2021061059 A1 WO 2021061059A1 TR 2019050908 W TR2019050908 W TR 2019050908W WO 2021061059 A1 WO2021061059 A1 WO 2021061059A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- profile
- developed
- profiles
- cross
- bulb flat
- Prior art date
Links
Classifications
-
- 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
- B63B3/26—Frames
- B63B3/28—Frames of transverse type; Stringers
-
- 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
- B63B3/26—Frames
- B63B3/32—Web frames; Web beams
-
- 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
- B63B3/26—Frames
- B63B3/34—Frames of longitudinal type; Bulkhead connections
Definitions
- the invention relates to profiles used in shipbuilding industry and all structural constructions.
- the purpose of the invention is to reduce the stresses and deformation of the ship and aircraft hull or other structures with the developed profile.
- Another purpose of the invention is; to increase the life of ships and aircrafts or other constructions.
- Another purpose of the invention is; to achieve a more robust and lighter ship and aircraft or construction.
- Another purpose of the invention is; to achieve a ship and aircraft or construction with reduced production costs.
- the profile developed to realize the mentioned objectives have been inspired from a cross-sectional area and/or cross-sectional weight as existing profiles and bone formation in living organisms.
- Figure-1 is the cross-sectional view of the profile (1).
- Figure-2 is the detailed view of the profile (1).
- Figure-3 is the detailed view of the profile (1).
- Figure-4 is the detailed view of the profile (1).
- Figure-5 is the perspective view of the profile (1).
- the invention relates to the profiles (bulb flats) used mostly in the shipbuilding industry, aircraft industry and in all structure constructions.
- the invention has a symmetrical shape with bulbs on both sides, unlike some asymmetric profiles.
- the profile has 3 to 7 percent higher moment of inertia than the other profiles.
- the invented profile has less deformation and tension.
- the invented profile (1) provides more durable body structure.
- the measurement ranges of the profile (1) are shown in Table 1.
- the value “x” in the two-dimensional drawing given in Figure- 1 indicates the distance of the center of the elliptical geometry at the top of the profile from the center of the area to the y-axis.
- the angle a 30 degrees shown in Figure-1 is a constant value for all dimensions of the profile.
- the profile (1) is developed from the cross-sectional area and/or cross- sectional weight of the existing profiles and the bone structure of living organisms. Finally, it is aimed to increase the moment of inertia of the profile. Basically, the aim is to increase the moment of inertia around the neutral axis of the profile, thereby reducing the stresses in the profile.
- the bending stress in the profile is calculated as follows.
- sb is the bending stress in Pascal
- M is the bending moment in the profile
- y is the vertical distance from the neutral axis
- I is the moment of inertia around the neutral axis in the order of m 4 . Since the moment of inertia is fourth order, the increase in this parameter significantly reduces the bending stress. In the context of the development of the profile (1), the moment of inertia about the neutral axis is increased.
- profile (1) was subjected to built-in loading and two-dimensional loading tests.
- the tests and the data obtained are as follows. a) Fixed Constrained Boundary Condition, One-Dimensional Loading Test
- the moment of inertia about the x-axis of the profile (1) is increased by about 3 percent and the moment of inertia about the y axis is increased by 70 percent.
- the panel built with the invented profile (1) has 9% less tension compared to the panel built with the existing profiles.
- 11% less deformation was achieved in the profile (1) in comparison with the existing profiles in the one-sided fixed state.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Rod-Shaped Construction Members (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980100524.9A CN114423535A (en) | 2019-09-27 | 2019-10-28 | Section bar (flat ball shape) for shipbuilding industry and all structure buildings |
EP19946298.7A EP4034315A1 (en) | 2019-09-27 | 2019-10-28 | A profile (bulb flat) developed for the shipbuilding industry and all structural constructions |
JP2022519507A JP2023508813A (en) | 2019-09-27 | 2019-10-28 | Profiles developed for the shipbuilding industry and all-structure construction (spheroidal steel) |
KR1020227013797A KR20220066960A (en) | 2019-09-27 | 2019-10-28 | Profiles developed for the shipbuilding industry and for the construction of all structures (bulb flat) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TRTR2019/14784 | 2019-09-27 | ||
TR201914784 | 2019-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021061059A1 true WO2021061059A1 (en) | 2021-04-01 |
Family
ID=75167047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/TR2019/050908 WO2021061059A1 (en) | 2019-09-27 | 2019-10-28 | A profile (bulb flat) developed for the shipbuilding industry and all structural constructions |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4034315A1 (en) |
JP (1) | JP2023508813A (en) |
KR (1) | KR20220066960A (en) |
CN (1) | CN114423535A (en) |
WO (1) | WO2021061059A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113198835A (en) * | 2021-04-28 | 2021-08-03 | 北京科技大学 | AH 36-grade hot-rolled flat-bulb steel preparation method based on Adam-SVM model |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104676236A (en) * | 2013-11-27 | 2015-06-03 | 江南造船(集团)有限责任公司 | Double-bulb flat-bulb steel component and welding method thereof |
CN108787742A (en) * | 2018-07-06 | 2018-11-13 | 鞍钢股份有限公司 | Rolling method of flat bulb steel for small and medium sized shipbuilding |
CN109261714A (en) * | 2018-09-05 | 2019-01-25 | 鞍钢股份有限公司 | Rolling method of symmetrical flat-bulb steel for large shipbuilding |
CN109557178A (en) * | 2017-09-27 | 2019-04-02 | 鞍钢股份有限公司 | Automatic ultrasonic flaw detection device and method for flat-bulb steel |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4623318Y1 (en) * | 1966-09-10 | 1971-08-11 | ||
JPS54102267A (en) * | 1978-01-31 | 1979-08-11 | Nippon Steel Corp | Rolled steel shape |
-
2019
- 2019-10-28 CN CN201980100524.9A patent/CN114423535A/en active Pending
- 2019-10-28 KR KR1020227013797A patent/KR20220066960A/en not_active Application Discontinuation
- 2019-10-28 WO PCT/TR2019/050908 patent/WO2021061059A1/en active Application Filing
- 2019-10-28 EP EP19946298.7A patent/EP4034315A1/en not_active Withdrawn
- 2019-10-28 JP JP2022519507A patent/JP2023508813A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104676236A (en) * | 2013-11-27 | 2015-06-03 | 江南造船(集团)有限责任公司 | Double-bulb flat-bulb steel component and welding method thereof |
CN109557178A (en) * | 2017-09-27 | 2019-04-02 | 鞍钢股份有限公司 | Automatic ultrasonic flaw detection device and method for flat-bulb steel |
CN108787742A (en) * | 2018-07-06 | 2018-11-13 | 鞍钢股份有限公司 | Rolling method of flat bulb steel for small and medium sized shipbuilding |
CN109261714A (en) * | 2018-09-05 | 2019-01-25 | 鞍钢股份有限公司 | Rolling method of symmetrical flat-bulb steel for large shipbuilding |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113198835A (en) * | 2021-04-28 | 2021-08-03 | 北京科技大学 | AH 36-grade hot-rolled flat-bulb steel preparation method based on Adam-SVM model |
Also Published As
Publication number | Publication date |
---|---|
KR20220066960A (en) | 2022-05-24 |
EP4034315A1 (en) | 2022-08-03 |
JP2023508813A (en) | 2023-03-06 |
CN114423535A (en) | 2022-04-29 |
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