CN105584603A - Automatic toppling centering device for single point mooring floating type structure - Google Patents
Automatic toppling centering device for single point mooring floating type structure Download PDFInfo
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- CN105584603A CN105584603A CN201610157048.2A CN201610157048A CN105584603A CN 105584603 A CN105584603 A CN 105584603A CN 201610157048 A CN201610157048 A CN 201610157048A CN 105584603 A CN105584603 A CN 105584603A
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- buoyancy aid
- single point
- auto
- righting
- toppling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
- B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
- B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
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- 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
Disclosed is an automatic toppling centering device for a single point mooring floating type structure. The automatic toppling centering device is characterized in that the automatic toppling centering device is installed between a floating body and a floating body mooring anchor chain and comprises a supporting structure which is installed on the lower end face of the floating body and extends towards the portion below the floating body, a centering swing arm is installed below the supporting structure and movably connected with the supporting structure, a weight is installed below the centering swing arm, and the mooring anchor chain is connected to the portion below the weight. The automatic toppling centering device is simple in structure, easy to produce, manufacture and install, and particularly suitable for being used on the single point mooring ocean floating type structure of the same size, the seakeeping of the floating body in waves is improved, automatic centering can be achieved after the floating body topples, and the safety of the automatic toppling centering device is ensured.
Description
Technical field
The invention belongs to ocean engineering field of mechanical technique, relate to the overturn-preventing structure of a kind of ocean buoyancy aid, specifically, relate toAuto-strengthening device after the toppling of a kind of single point mooring floating structure.
Background technology
Single point mooring's floating structure is the general designation of a class marine float structure, and this class formation thing generally includes the buoyancy aid being positioned on seaWith the anchor chain for moored float, buoyancy aid is to be fixed on a certain fixed position in ocean by anchor. For example marine environmental monitoring eachKind of data buoy and ship mark, utilize the float-type wave energy apparatus of wave-energy power generation, for the navigation light of ship piloting etc.
In such works deck or float cabin, conventionally carry various instrument and equipments, realize specific function. With marine environmentMonitering buoy is example, is conventionally equipped with miniature antenna, wind transducer, Temperature Humidity Sensor etc., buoyancy aid on the deck of buoyancy aidIn inner chamber, be provided with centralized control center, battery, generator etc. Be subject to the impact of sea situation, the buoyancy aid that swims in sea will suffer rippleThe effect of wave, wind and ocean current. For example, although such works has carried out Calculation of Stability at the beginning of building: in order to increase buoyancy aidStability can be installed weight conventionally in float cabin, increases the ballast of buoyancy aid, to reduce the center of gravity of buoyancy aid, increases the steady of buoyancy aidProperty, but this structure can take the utilized space in float cabin, and simultaneously still likely unexpected in exceedingly odious sea situation or boats and shipsCan topple under collision situation, once and after toppling, can not auto-strengthening, cause damage.
Summary of the invention
The object of the present invention is to provide auto-strengthening device after the toppling of a kind of single point mooring floating structure, this device can ensureFloating structure, after toppling, can be realized auto-strengthening within a short period of time, to maintain the normal duty of system.
Technical scheme of the present invention is as follows: the auto-strengthening device that topples of single point mooring's floating structure, is arranged on buoyancy aid and buoyancy aidBetween mooring anchor chain; Comprise and be arranged on buoyancy aid lower surface, a supporting construction of extending to buoyancy aid below, described supporting construction belowOne righting swing arm is installed, between righting swing arm and supporting construction, is flexibly connected, there is a pouring weight righting swing arm below, pouring weight belowBe connected with mooring anchor chain.
Preferably: supporting construction comprises a frame structure, base of frame has a keyset, and righting swing arm and keyset join.
Preferably: between righting swing arm and supporting construction, be hinged by universal. Righting swing arm can freely swing and revolve around universal hingeTurn.
Preferably: pouring weight is circular, and damped coefficient is little.
Preferably: top-up under state, the center of gravity of the Floating System that buoyancy aid and auto-strengthening device form and centre of buoyancy are at same verticalOn line.
Beneficial effect of the present invention is:
1,, compared with the mooring structure of with traditional buoyancy aid bottom centre, anchor chain being directly installed, the present invention has increased by a frame in buoyancy aid bottomShelf structure, tethers point is positioned at base of frame, and having reduced anchor is position of action point, has increased the righting moment of anchor system, has strengthened tableThe stability of face buoyancy aid.
2, buoyancy aid under(-)chassis lower end connects single pendulum structure, and the pouring weight of single pendulum, as outside ballast, has reduced the position of centre of gravity of buoyancy aid,Avoided the inconvenience at buoyancy aid interior compartment configuration ballast, what increased float cabin inside effectively utilizes space simultaneously.
3, base of frame is by the universal single pendulum structure that is hinged, and this single pendulum can swing along with waving of buoyancy aid, can partly inhaleReceive the wave excitation energy that bears of Floating System, reduce that buoyancy aid waves with wave and hang down to swinging and wait motion response, enhancing buoyancy aid resistance toRipple.
4, after moored float topples, single pendulum structure at Action of Gravity Field lower swing to base of frame plane, now pouring weight position of centre of gravityAway from buoyancy aid centre of buoyancy position, produce a righting moment, ensure that by calculating under this state, righting arm GZ is all less than zero,Can ensure that buoyancy aid can return to the state of top-uping voluntarily.
5, this invention is simple in structure, is easy to manufacture and install, and is particularly suitable for undersized single point mooring marine floating type knotOn structure thing, improve the sea-keeping of buoyancy aid in wave, and auto-strengthening after realizing buoyancy aid and toppling, guarantee the safety of device.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the stressed schematic diagram after buoyancy aid tilts.
Fig. 3 is the state that the top-ups statical stability curve of righting arm comparison diagram that buoyancy aid is equipped with auto-strengthening device front and back.
Fig. 4 is configuration state and the stressed schematic diagram of the present invention after toppling.
Fig. 5 is the state that the topples statical stability curve of righting arm comparison diagram that buoyancy aid is equipped with auto-strengthening device front and back.
Wherein: 1-buoyancy aid, 2-framework, the universal hinge of 3-, 4-righting swing arm, 5-pouring weight, 6-mooring anchor chain, 7-buoyancy aid center of gravity, 8-Buoyancy aid centre of buoyancy, 9-keyset
Detailed description of the invention
As shown in Figure 1, the auto-strengthening device that topples of single point mooring's floating structure, is arranged on buoyancy aid 1 and buoyancy aid mooring anchor chainBetween 6; Comprise and be arranged on buoyancy aid 1 lower surface, a supporting construction of extending to buoyancy aid 1 below, supporting construction is buoyancy aid and holds upEquipment provides the effect of switching. For convenient design, also, for the stability of structure, supporting construction adopts framework 2 structures,Framework 2 adopts tubing or section bar to make, and is polygonized structure, and in the situation that buoyancy aid 1 top-ups, what reduce buoyancy aid 1 is anchor point.
The below of the bottom of framework 2 has a structure of transferring with righting swing arm 4, and this exchanging structure comprises a keyset 9, turnsFishplate bar 9 is dull and stereotyped dress, is parallel to the direction on sea. Righting swing arm 4 adopts rigidity material, is metal tube or metal bar, verticallyTo downward-extension, between righting swing arm 4 and keyset, be active link, righting swing arm 4 can turn around the junction of itself and keyset 9Moving. In the present embodiment, keyset place is provided with universal hinge 3, and righting swing arm 4 is joined with keyset 9 by universal hinge 3,Under the effect of wave, righting swing arm 4 rotates freely and waves around universal hinge 3, absorbs a part of wave and is applied on buoyancy aid 1Energy, adapt to the incentive action of all directions waves.
There is a pouring weight 5 righting swing arm 4 belows, are integrated or dismountable structure pouring weight 5 between pouring weight 5 and righting swing arm 4Below is connected with mooring anchor chain 6. Pouring weight 5 is for metal or the cement pouring weight of building, in order to reduce resistance coefficient, outside pouring weight 5Shape is designed to spherical. Compared with the structure of directly joining with buoyancy aid 1 with traditional anchor chain, the installation of pouring weight 5 has reduced whole buoyancy aidThe center of gravity of system, thus the stability of buoyancy aid increased, and meanwhile, pouring weight 5 also can absorb the energy waving that a part of wave bringsMeasure, reduce the amplitude of waving of buoyancy aid 1, increase the seakeeping capacity of buoyancy aid 1. On the other hand, pouring weight 5 has substituted and has been arranged on buoyancy aidBallast in cabin, what increased float cabin inside effectively utilizes space, has avoided the inconvenience in the configuration of buoyancy aid interior compartment.
The Floating System that buoyancy aid 1 and erection device form is designed to symmetrical structure, top-ups under state, and buoyancy aid 1 and auto-strengthening dressPut the center of gravity of Floating System of formation and centre of buoyancy on same plumb line. This structure is conducive to increase the stability of whole Floating System.
The impact of wave on buoyancy aid 1, in lighter situation, only can cause the swing of buoyancy aid 1, but buoyancy aid 1 still keeps top-upingState, in this case, Floating System in the unsteady situation on sea as shown in Figures 2 and 3.
Referring to Fig. 2, it is the cross section of an inclination buoyancy aid 1. This buoyancy aid is at the effect of the outside heeling moment certain angle φ that has a down dip,Buoyancy aid 1 position of centre of gravity is G, does not change, and displacement of volume Δ and buoyancy aid are equal in weight, and also do not change. But due to waterlineThe variation of position, the displacement of volume shape of buoyancy aid 1 changes, and centre of buoyancy moves to B by B1Place. Now, center of gravity and centre of buoyancy are notBe positioned at again on same plumb line, thereby buoyancy and gravity forms a couple, impel buoyancy aid 1 to be returned to original equilbrium positionRighting moment MR. Make straight line GZ perpendicular to by the vertical line of B1 from center of gravity G, righting moment MRExpression formula is as follows:
MR＝Δ·GZ
Wherein, GZ is righting arm, calculates the corresponding righting arm of different angle φ, and is depicted as curve, obtains buoyancy aidCurve of statical stability, as shown in Figure 3. If the opposite direction of righting moment and heeling moment, GZ be on the occasion of, meaningOnce when the disappearance of inclination external force, it can make buoyancy aid 1 be returned to the original equilbrium position of top-uping. If righting moment and heeling momentDirection identical, GZ is negative value, can impel buoyancy aid 1 to continue to tilt.
As shown in Figure 2, when buoyancy aid 1 bottom increases after auto-strengthening device, the center of gravity of buoyancy aid 1 drops to G1 place, answering nowFormer arm of force G1Z1 is greater than former righting arm GZ, proves that buoyancy aid 1 has larger righting moment, stability under same tilt angleBe improved. As can be seen from Figure 3, compared with situation without auto-strengthening device, increase after automatic floating device buoyancy aid systemThe righting arm of system will increase greatly.
If sea situation is more severe, wave will produce compared with ill effect buoyancy aid 1, in more serious situation, can cause buoyancy aid 1Topple, in this case, buoyancy aid 1 system in the situation on sea as shown in Figure 4 and Figure 5.
Referring to Fig. 4, in the time that buoyancy aid 1 can topple in the situations such as exceedingly odious sea situation or fortuitous collision, due to selfAction of Gravity Field, swing arm 4 can swing to the bottom keyset 9 of under(-)chassis around universal hinge 3, the centroidal distance buoyancy aid of pouring weight 5The distance of center line is approximately pendulum arm length, and therefore the overall center of gravity 7 of buoyancy aid and buoyancy aid centre of buoyancy 8, can shapes not on same straight lineBecome a righting moment M. Under different swing arm 4 length and the combination of pouring weight 5 weight, the mass parameter difference of buoyancy aid 1, quietStability is also different. Select suitable swing arm 4 length and the weight of pouring weight 5, calculate the curve of statical stability of buoyancy aid 1 under this state,If the righting arm GZ of buoyancy aid 1 is all less than zero within the scope of 180 °, can ensure that buoyancy aid 1 can under this single pendulum configuration statusRealize auto-strengthening.
Referring to Fig. 5, taking the disc type single point mooring Wave energy electric generator of a diameter 6m as example, calculate it and be equipped with auto-strengthening dressThe stability curve of righting arm of the state that topples before and after putting. Solid line be bottom there is no an auto-strengthening device buoyancy aid 1 after topplingCurve of righting arm, known by curve, after buoyancy aid 1 topples, be approximately less than within the scope of 75 ° the answering of buoyancy aid 1 in its roll angleFormer arm of force GZ be on the occasion of, illustrate that buoyancy aid 1 possesses certain restoring moment within the scope of this, the buoyancy aid 1 toppling can not be realizedAuto-strengthening, only has when the angle of inclination of buoyancy aid exceedes after 75 °, and buoyancy aid 1 could reset into the state of top-uping voluntarily. But be equipped withThe buoyancy aid 1 of auto-strengthening device after toppling, its righting arm GZ is less than all the time zero within the scope of 180 °, and buoyancy aid 1 is describedAfter toppling, its righting moment is identical with the direction of heeling moment, can impel buoyancy aid 1 to continue to tilt, and can automatically revert to and top-upState.
Claims (5)
1. the auto-strengthening device that topples of single point mooring's floating structure, is characterized in that: be arranged between buoyancy aid and buoyancy aid mooring anchor chain;Comprise and be arranged on buoyancy aid lower surface, a supporting construction of extending to buoyancy aid below, described supporting construction below is provided with a rightingSwing arm, is flexibly connected between righting swing arm and supporting construction, and there is a pouring weight righting swing arm below, pouring weight below and mooring anchor chainBe connected.
2. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, is characterized in that: described support knotStructure comprises a frame structure, and base of frame has a keyset, and righting swing arm and keyset join.
3. the auto-strengthening device that topples of single point mooring as claimed in claim 1 or 2 floating structure, is characterized in that: described in hold upBetween positive swing arm and supporting construction, be hinged by universal.
4. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, is characterized in that: described pouring weight isCircular.
5. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, is characterized in that: top-ups under state,The center of gravity of the Floating System that buoyancy aid and auto-strengthening device form and centre of buoyancy are on same plumb line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157048.2A CN105584603B (en) | 2016-03-18 | 2016-03-18 | The auto-strengthening device that topples of single point mooring's floating structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157048.2A CN105584603B (en) | 2016-03-18 | 2016-03-18 | The auto-strengthening device that topples of single point mooring's floating structure |
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| CN105584603A true CN105584603A (en) | 2016-05-18 |
| CN105584603B CN105584603B (en) | 2017-08-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054576A (en) * | 2016-12-12 | 2017-08-18 | 杭州跟策科技有限公司 | The anti-dumping type drilling platforms of semi-submersible type Ke lookouts |
| CN112793729A (en) * | 2021-01-25 | 2021-05-14 | 中国铁建港航局集团有限公司 | Anti-slamming device |
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| JPS52134788A (en) * | 1976-04-26 | 1977-11-11 | Marine Exploration Ltd | Marine buoy |
| CN1882472A (en) * | 2003-09-17 | 2006-12-20 | 海洋动力传输有限公司 | Mooring system |
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| CN102705175A (en) * | 2012-05-09 | 2012-10-03 | 展翔海事(大连)有限责任公司 | Floating type wind power tower |
| US20140048276A1 (en) * | 2010-03-01 | 2014-02-20 | My Technologies, L.L.C. | Riser for Coil Tubing/Wire Line Injection |
| CN104040170A (en) * | 2011-11-04 | 2014-09-10 | 中村拓树 | Floating structure fluid dynamic force use system and wind-propelled vessel |
| CN203889017U (en) * | 2014-05-23 | 2014-10-22 | 国家海洋局第二海洋研究所 | Floating offshore platform |
| CN104229095A (en) * | 2014-09-09 | 2014-12-24 | 中国电子科技集团公司第五十四研究所 | Anti-overturning flat boat |
| CN205632955U (en) * | 2016-03-18 | 2016-10-12 | 中国海洋大学 | Automatic righting device that topples of single point mooring floating structure thing |
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2016
- 2016-03-18 CN CN201610157048.2A patent/CN105584603B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52134788A (en) * | 1976-04-26 | 1977-11-11 | Marine Exploration Ltd | Marine buoy |
| CN1882472A (en) * | 2003-09-17 | 2006-12-20 | 海洋动力传输有限公司 | Mooring system |
| US20140048276A1 (en) * | 2010-03-01 | 2014-02-20 | My Technologies, L.L.C. | Riser for Coil Tubing/Wire Line Injection |
| CN201818435U (en) * | 2010-10-22 | 2011-05-04 | 林雨鑫 | Floating vertical rotation axis wind turbine |
| CN104040170A (en) * | 2011-11-04 | 2014-09-10 | 中村拓树 | Floating structure fluid dynamic force use system and wind-propelled vessel |
| CN202379060U (en) * | 2011-11-30 | 2012-08-15 | 浙江海洋学院 | Ocean current monitoring system carrying platform |
| CN102705175A (en) * | 2012-05-09 | 2012-10-03 | 展翔海事(大连)有限责任公司 | Floating type wind power tower |
| CN203889017U (en) * | 2014-05-23 | 2014-10-22 | 国家海洋局第二海洋研究所 | Floating offshore platform |
| CN104229095A (en) * | 2014-09-09 | 2014-12-24 | 中国电子科技集团公司第五十四研究所 | Anti-overturning flat boat |
| CN205632955U (en) * | 2016-03-18 | 2016-10-12 | 中国海洋大学 | Automatic righting device that topples of single point mooring floating structure thing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054576A (en) * | 2016-12-12 | 2017-08-18 | 杭州跟策科技有限公司 | The anti-dumping type drilling platforms of semi-submersible type Ke lookouts |
| CN112793729A (en) * | 2021-01-25 | 2021-05-14 | 中国铁建港航局集团有限公司 | Anti-slamming device |
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| Publication number | Publication date |
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| CN105584603B (en) | 2017-08-08 |
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