JPS57118979A - Half-submerged catamaran - Google Patents
Half-submerged catamaranInfo
- Publication number
- JPS57118979A JPS57118979A JP245481A JP245481A JPS57118979A JP S57118979 A JPS57118979 A JP S57118979A JP 245481 A JP245481 A JP 245481A JP 245481 A JP245481 A JP 245481A JP S57118979 A JPS57118979 A JP S57118979A
- Authority
- JP
- Japan
- Prior art keywords
- strut
- center
- hull
- floatation
- buoyancy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/107—Semi-submersibles; Small waterline area multiple hull vessels and the like, e.g. SWATH
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
PURPOSE:To prevent a combined motion of bouncing and pitching by making an opened section over upper and lower water lines on the rear hull of a strut of a half-merged catamaran and positioning the center of floatation of the strut just above the center of buoyancy of a lower hull and the strut. CONSTITUTION:A half-submerged catamaran is composed of symmetrical left and right submerged lower hulls 1, struts 2 which are raised on them, and a cross deck 3 which connect the upper ends of each strut 2 over a water level 6. Opened sections 7 are made in the rear hull of the struts 2 over the upper and lower water lines 6 so as to position the center of floatation F of the struts 2 nearly above the center of buoyancy B of the lower hull 1 and the strut 2. The positioning of the center of floatation F above the buoyancy B prevents the combination of bouncing and pitching, thereby improving the moving performance of the hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP245481A JPS57118979A (en) | 1981-01-09 | 1981-01-09 | Half-submerged catamaran |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP245481A JPS57118979A (en) | 1981-01-09 | 1981-01-09 | Half-submerged catamaran |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57118979A true JPS57118979A (en) | 1982-07-24 |
| JPS6332676B2 JPS6332676B2 (en) | 1988-06-30 |
Family
ID=11529731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP245481A Granted JPS57118979A (en) | 1981-01-09 | 1981-01-09 | Half-submerged catamaran |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57118979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021113017A (en) * | 2020-01-21 | 2021-08-05 | 日立造船株式会社 | Floating body structure |
-
1981
- 1981-01-09 JP JP245481A patent/JPS57118979A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021113017A (en) * | 2020-01-21 | 2021-08-05 | 日立造船株式会社 | Floating body structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6332676B2 (en) | 1988-06-30 |
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