Active roll stabilization system for ships
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0890946
(2004-07-14)
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우선권정보 |
NL-1023921 (2003-07-15) |
발명자
/ 주소 |
- Koop, Mattheus Theodorus
- Dinnissen, Lambertus Johannes Maria
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
2 |
초록
▼
The invention relates to an active roll stabilisation system for ships, comprising at least one rotatable stabilisation element extending below the water line, sensor means for sensing the ship's movements and delivering control signals on the basis thereof to driving means for rotating the stabilis
The invention relates to an active roll stabilisation system for ships, comprising at least one rotatable stabilisation element extending below the water line, sensor means for sensing the ship's movements and delivering control signals on the basis thereof to driving means for rotating the stabilisation element for the purpose of damping the ship's movements that are being sensed.The object of the invention is to provide an active roll stabilisation system for ships that can be used both while the ship is sailing and while the ship is at anchor. According to the invention, the active roll stabilisation system is to that end characterized in that the system furthermore comprises displacement means for moving the stabilisation element with respect to the ship. This makes it possible to create a relative movement of the rotating stabilisation element with respect to the water both while the ship is sailing and while the ship is at anchor, so that the Magnus effect will occur at all times and the correction force thus being generated can be utilised for damping the ship's movements that are being sensed.
대표청구항
▼
1. An active roll stabilization system for ships, comprising:at least one rotatable stabilization element extending below the water line;driving means for rotating the stabilization element for the purpose of damping the ship's movements that are being sensed; andsensor means for sensing the ship's
1. An active roll stabilization system for ships, comprising:at least one rotatable stabilization element extending below the water line;driving means for rotating the stabilization element for the purpose of damping the ship's movements that are being sensed; andsensor means for sensing the ship's movements and delivering control signals on the basis thereof to said driving means,wherein the system furthermore comprises displacement means for moving the stabilization element with respect to the hull of a ship based on the control signals delivered by the sensor means.2. An active roll stabilization system according to claim 1, wherein the ship has a longitudinal direction and the moving stabilization element comprises a motion component in the longitudinal direction of the ship.3. An active roll stabilization system according to claim 1, wherein the displacement means impart a translating movement to the stabilization element with respect to the ship's hull.4. An active roll stabilization system according to claim 3, wherein the stabilization element is accommodated in a guide mounted in or on the ship's hull.5. An active roll stabilization system according to claim 4, wherein the ship has a longitudinal direction and the guide extends at least partially in the longitudinal direction of the ship.6. An active roll stabilization system according to claim 1, wherein the displacement means impart a pivoting movement to the stabilization element with respect to the ship's hull.7. An active roll stabilization system according to claim 6, wherein the stabilization element is connected to the ship by means of a universal joint.8. An active roll stabilization system according to claim 6, wherein the stabilization element can be accommodated in a recess formed in the ship's hull.9. An active roll stabilization system according to claim 6, wherein the displacement means comprise at least one arm, to which the stabilization element is mounted.10. An active roll stabilization system according to claim 9, wherein said arm is connected to the ship by means of a universal joint.11. An active roll stabilization system according to claim 1, wherein the stabilization element comprises at least one rotatable, elongated shaft.12. An active roll stabilization system according to claim 11, wherein the stabilization element comprises two rotatable, elongated, interconnected shafts positioned some distance apart.13. An active roll stabilization system according to claim 12, wherein the two shafts are interconnected by means of an endless carrier mounted over the shafts.14. An active roll stabilization system according to claim 1, wherein the stabilization element is of symmetrical cross-section.15. An active roll stabilization system according to claim 14, wherein the stabilization element is of polygonal cross-section.16. An active roll stabilization system according to claim 1, wherein the stabilization element is of asymmetrical cross-section.17. An active roll stabilization system according to claim 1, wherein the stabilization element is of conical shape, seen in a longitudinal direction.18. An active roll stabilization system according to claim 1, wherein the stabilization element has a roughened outer surface.19. An active roll stabilization system according to claim 18, wherein the outer surface of the stabilization element comprises a large number of indentations.20. An active roll stabilization system according to claim 1, wherein the stabilization element is provided with at least one plate extending perpendicularly to the axis of rotation.21. An active roll stabilization system according to claim 20, wherein said plate is mounted to the end of the stabilization element.22. An active roll stabilization system according to claim 21, wherein said plate is mounted to the free end of the stabilization element by means of a bearing.23. An active roll stabilization system according to claim 1, wherein the ship has first and second longitudinally extending sides and a the stabilization element is provided on either longitudinally-extending side of the ship.
이 특허에 인용된 특허 (2)
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Yee Norman D. (955 14th Ave. Honolulu HI 96816), Drag reducing surface depressions.
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Reed Jason C. (Hampton VA) Bushnell Dennis M. (Hayes VA), Polymer/riblet combination for hydrodynamic skin friction reduction.
이 특허를 인용한 특허 (8)
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Koop,Mattheus Theodorus; Dinnissen,Lambertus Johannes Maria; Ooms,Johannes, Active roll stabilisation system for ships.
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Leverette, Steven John, Drag-inducing stabilizer plates with damping apertures.
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Löfgren, Arne; Lindqvist, Tomas; Fodor, George, Method and device for averting and damping rolling of a ship.
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Leverette, Steven John, Semisubmersible offshore platform with drag-inducing stabilizer plates.
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Van Aken, Arnoldus Henricus Maria, Stabilizing fin and construction comprising said fin.
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Hoffberg, Steven M., Steerable rotating projectile.
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Chun, Wendell H., System and method for dynamic stabilization and navigation in high sea states.
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Venables, John D.; Pappas, Christopher M., Variable geometry fin.
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