NO127850B - - Google Patents
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- Publication number
- NO127850B NO127850B NO02473/72*[A NO247372A NO127850B NO 127850 B NO127850 B NO 127850B NO 247372 A NO247372 A NO 247372A NO 127850 B NO127850 B NO 127850B
- Authority
- NO
- Norway
- Prior art keywords
- ship
- roller body
- devices
- transverse direction
- movement
- Prior art date
Links
- 239000003381 stabilizer Substances 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- 230000035939 shock Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
Description
Rullingsstabilisator for skip. Roll stabilizer for ships.
Denne oppfinnelse vedrører en rullingsstabilisator for skip omfattende et sylindrisk rullelegeme med tilstrekkelig masse for å meddele skipet betydelig stabiliseringsmoment og som er anordnet i eller på skipet rullbart i et hus i skipets tverretning i avhengighet av skipets rullingsbevegelse, og med innretninger for nedbremsing av rullelegemets bevegelse i skipets tverretning. This invention relates to a roll stabilizer for ships comprising a cylindrical rolling body with sufficient mass to provide the ship with significant stabilizing torque and which is arranged in or on the ship rollable in a housing in the ship's transverse direction depending on the ship's rolling movement, and with devices for slowing down the movement of the rolling body in ship's transverse direction.
Rullingsstabilisatorer med et bevegelig rullelegeme er tidligere kjent og kan f.eks. omfatte en vogn som er anbragt på et skin-nespor som har en vekt på 25 tonn eller mer. Sporet er anordnet i skipets tverretning slik at vognen vil bevege seg fra skipets ene si-de mot den annen i avhengighet av skipets rullingsbevegelse. Også tidligere kjent er rullingsstabilisatorer med et sylindrisk rullelegeme med betydelig vekt som er anordnet til å rulle i skipets tverr-retning på en bane hvis hellingsvinkel med horisontalen kan være for-anderlig, f.eks. ved at hele banen er svingbar om en akse. Slike an-ordninger er vanskelige å vedlikeholde og avpasning av stabilisato-rens bevegelse i fase med skipets rullingsbevegelse kan volde store vanskeligheter.. Det kreves f.eks. en komplisert bremsemekanisme som må betjenes fra en elektronisk avfølingsinnretning for skipets.rui-, . lingsbevegelse. Roll stabilizers with a movable rolling body are previously known and can e.g. include a carriage placed on a rail track which has a weight of 25 tonnes or more. The track is arranged in the ship's transverse direction so that the carriage will move from one side of the ship to the other depending on the ship's rolling motion. Also previously known are roll stabilizers with a cylindrical rolling body of considerable weight which is arranged to roll in the transverse direction of the ship on a path whose angle of inclination with the horizontal can be variable, e.g. in that the entire path is pivotable about an axis. Such arrangements are difficult to maintain and matching the stabilizer's movement in phase with the ship's rolling movement can cause major difficulties.. It is required, for example, a complicated braking mechanism that must be operated from an electronic sensing device for the ship's.rui-, . ling movement.
Hensikten.med oppfinnelsen er å tilveiebringe en ny rullingsstabilisator av den innledningsvis nevnte art hvor de nevnte vanskeligheter er i det vesentlige unngått eller redusert, og dette er oppnådd ved at bremseinnretningene består i at rullelegemet er ut-ført hult og delvis er fylt med væske. The purpose of the invention is to provide a new roll stabilizer of the type mentioned at the outset where the aforementioned difficulties are essentially avoided or reduced, and this is achieved by the braking devices consisting in the rolling body being made hollow and partially filled with liquid.
Andre trekk ved stabilisatoren ifølge oppfinnelsen fremgår av underkravene. Other features of the stabilizer according to the invention appear from the subclaims.
Oppfinnelsen skal forklares nærmere ved hjelp; av eksempler under henvisning til tegningene, hvor: Fig. 1 viser skjematisk et snitt gjennom en stabilisator ifølge oppfinnelsen tatt på tvers av skipet, og fig. 2 viser et snitt langs linjen II-II på fig. 1. Stabilisatoren kan være anordnet på skipets hoveddekk, i dobbeltbunnen eller mellom to'av skipets dekk. The invention shall be explained in more detail by means of; of examples with reference to the drawings, where: Fig. 1 schematically shows a section through a stabilizer according to the invention taken across the ship, and fig. 2 shows a section along the line II-II in fig. 1. The stabilizer can be arranged on the ship's main deck, in the double bottom or between two of the ship's decks.
Stabilisatoren 12 omfatter et avlangt hus 14 som strekker The stabilizer 12 comprises an elongated housing 14 which extends
seg i skipets tverretning og er anordnet symmetrisk om skipets langs-gående senterlinje. Den rullende vekt i form av et hult, sylindrisk rullelegeme 17 styres innenfor huset 14 for å rulle i skipets tverr-retnlng i avhengighet av skipets rulling. in the ship's transverse direction and is arranged symmetrically about the ship's longitudinal centreline. The rolling weight in the form of a hollow, cylindrical rolling body 17 is controlled within the housing 14 to roll in the transverse direction of the ship in dependence on the roll of the ship.
Det hule, i det vesentlige sylindriske legeme er delvis fylt med væske og er utstyrt med flere innvendige finner. 32 som kon-tinuerlig, .skaper turbulens i væsken når sylinderen 17 ruller i skipets tverretning. På denne måte oppnås tilstrekkelig dempning, og nivået for væsken kan innstilles for tilpasning av sylinderens 17 masse i samsvar med den nødvendige avstemning av frekvensen for sta-biliseringssystemet. Sylinderen er utstyrt med åpninger 19 i ende-veggene for innføring og bortføring av væsken. Hvilken som helst væske kan benyttes. Tunge væsker, såsom:-kvikksølv, eller suspensjo-ner av faste bestanddeler i væsker er å foretrekke.' Sylinderen ifølge eksemplet er utført med et midtparti med :: nedsatt-.diameter..: På denne måte ér det tilveiebragt et ringspor som styrer sylinderen på en føringsskinne 22 som strekker seg i husets 14 lengderetning, dvs. skipets tverretning. Husets endevegger må væ-re tilstrekkelig sterke for å kunne motstå eventuelle støt fra sylinderen 17. For å dempe eventuelle støtkrefter er det anordnet støt-dempere 16. The hollow, essentially cylindrical body is partially filled with liquid and is equipped with several internal fins. 32 which continuously creates turbulence in the liquid when the cylinder 17 rolls in the transverse direction of the ship. In this way, sufficient damping is achieved, and the level of the liquid can be set to adapt the mass of the cylinder 17 in accordance with the necessary tuning of the frequency of the stabilization system. The cylinder is equipped with openings 19 in the end walls for introducing and removing the liquid. Any liquid can be used. Heavy liquids, such as mercury, or suspensions of solid components in liquids are preferred. The cylinder according to the example is made with a central part with :: reduced-.diameter..: In this way, an annular groove is provided which guides the cylinder on a guide rail 22 which extends in the longitudinal direction of the housing 14, i.e. the transverse direction of the ship. The end walls of the house must be sufficiently strong to be able to withstand any shocks from the cylinder 17. To dampen any shock forces, shock absorbers 16 have been arranged.
Husets 14 bunn hvorpå sylinderen 17 hviler, skråner oppover mot skipssiden. Ifølge eksemplet er rullingsflaten utrettet ved endene, som vist ved 33. Ved den på fig. 2 viste utførelse er rullingsbanen stort sett bestemt ved et sirkelsegment med stor krum-ningsradius, men den kan også være utformet slik at den omfatter et stort sett horisontalt midtparti og sidepartier som er rettlinjede, men heller svakt oppover, f.eks. mellom 5 og 10°. Banens form be-stemmes etter stabiliseringsforholdene for vedkommende skip. The bottom of the housing 14, on which the cylinder 17 rests, slopes upwards towards the ship's side. According to the example, the rolling surface is straightened at the ends, as shown at 33. At the one in fig. 2 embodiment, the rolling path is largely determined by a circle segment with a large radius of curvature, but it can also be designed so that it comprises a largely horizontal middle part and side parts which are rectilinear, but rather slightly upwards, e.g. between 5 and 10°. The shape of the track is determined by the stabilization conditions for the ship in question.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74804368A | 1968-07-26 | 1968-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO127850B true NO127850B (en) | 1973-08-27 |
Family
ID=25007751
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO3051/69A NO126009B (en) | 1968-07-26 | 1969-07-24 | |
NO02473/72*[A NO127850B (en) | 1968-07-26 | 1972-07-11 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO3051/69A NO126009B (en) | 1968-07-26 | 1969-07-24 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3557735A (en) |
DE (1) | DE1937956B2 (en) |
GB (1) | GB1260172A (en) |
NO (2) | NO126009B (en) |
SE (1) | SE360830B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809000A (en) * | 1971-08-04 | 1974-05-07 | Secretary Trade Ind Brit | Passive roll stabilisers |
US3804050A (en) * | 1971-10-21 | 1974-04-16 | Exxon Research Engineering Co | Permanent ballast arrangement for externally insulated tankers |
US3934535A (en) * | 1973-05-15 | 1976-01-27 | Southwestern Industries, Inc. | Roll stabilizer for a boat |
CA2182174A1 (en) * | 1993-12-06 | 1995-06-15 | Rodolphe Proverbio | Muscle-powered watercraft |
AU2006201460B1 (en) * | 2006-04-07 | 2007-06-21 | Robert William Gale | Watercraft ballast |
DE102007021316B3 (en) * | 2007-05-07 | 2008-08-21 | Thiede, Björn, Dr. | Flexible ballast weight i.e. dumb-bell, for sailing ship, is supported transverse to longitudinal direction of sailing ship moved by waterline and shifted to windward side of sailing ship in order to work against offense forces |
EP2207713B1 (en) * | 2007-10-11 | 2013-03-20 | Itrec B.V. | Vessels with roll damping mechanism |
CN102079364B (en) * | 2009-11-27 | 2013-04-10 | 三一电气有限责任公司 | Wind turbine installation vessel and gravity center adjusting devices for same |
CN108569382A (en) * | 2018-04-28 | 2018-09-25 | 江阴市北海救生设备有限公司 | Ships and light boats equipped with Angle of Trim regulating mechanism |
CN111290416B (en) * | 2020-01-20 | 2020-11-20 | 郑州宇通重工有限公司 | Ship attitude control method, system, computer storage medium and ship |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE324970C (en) * | 1915-08-12 | 1920-09-07 | Hamburg Und Stettin Act Ges | Method for damping oscillating movements of bodies, in particular the rolling movements of ships |
US3083671A (en) * | 1960-10-25 | 1963-04-02 | Mcmullen Ass John J | Vessel stabilization system |
-
1968
- 1968-07-26 US US748043A patent/US3557735A/en not_active Expired - Lifetime
-
1969
- 1969-07-24 GB GB37382/69A patent/GB1260172A/en not_active Expired
- 1969-07-24 NO NO3051/69A patent/NO126009B/no unknown
- 1969-07-24 SE SE10431/69A patent/SE360830B/xx unknown
- 1969-07-25 DE DE19691937956 patent/DE1937956B2/en active Pending
-
1972
- 1972-07-11 NO NO02473/72*[A patent/NO127850B/no unknown
Also Published As
Publication number | Publication date |
---|---|
US3557735A (en) | 1971-01-26 |
GB1260172A (en) | 1972-01-12 |
DE1937956B2 (en) | 1971-11-18 |
NO126009B (en) | 1972-12-11 |
DE1937956A1 (en) | 1970-01-29 |
SE360830B (en) | 1973-10-08 |
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