CN205632955U - Automatic righting device that topples of single point mooring floating structure thing - Google Patents
Automatic righting device that topples of single point mooring floating structure thing Download PDFInfo
- Publication number
- CN205632955U CN205632955U CN201620213194.8U CN201620213194U CN205632955U CN 205632955 U CN205632955 U CN 205632955U CN 201620213194 U CN201620213194 U CN 201620213194U CN 205632955 U CN205632955 U CN 205632955U
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- CN
- China
- Prior art keywords
- buoyancy aid
- topples
- swing arm
- righting
- single point
- 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.)
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Abstract
Automatic righting device that topples of single point mooring floating structure thing, its characterized in that: install and moor between the anchor chain at body and body, including installing terminal surface under the body, to a bearing structure of body below extension, bearing structure installs one in the below and sets upright or straight the swing arm, sets upright or straight swing joint between swing arm and the bearing structure, sets upright or straight a swing arm below installation pouring weight, and the pouring weight below links to each other with the anchor chain of mooring. This invents simple structure, and easily production manufacturing and installation are particularly suitable for being used for small -size's single point mooring ocean floating structure thing, improve the seakeeping of body in the wave to automation after the realization body topples is right, ensures the safety of device.
Description
Technical field
This utility model belongs to ocean engineering field of mechanical technique, relates to the overturn-preventing structure of a kind of ocean buoyancy aid, specifically,
Relate to auto-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 kind of works generally includes the buoyancy aid being positioned on sea
With the anchor chain for moored float, buoyancy aid is fixed on a certain fixed position in ocean by anchor system.Such as marine environmental monitoring each
Kind of data buoy and ship mark, utilize the float-type wave energy apparatus of wave-energy power generation, for the navigation light etc. of ship piloting.
Various instrument and equipments are generally carried, it is achieved specific function in such works deck or float cabin.With marine environment
As a example by monitering buoy, the deck of buoyancy aid is generally equipped with miniature antenna, wind transducer, Temperature Humidity Sensor etc., buoyancy aid
Inner chamber is provided with centralized control center, accumulator, electromotor etc..Being affected by sea situation, the buoyancy aid swimming in sea will suffer from ripple
Wave, wind and the effect of ocean current.Although such works has carried out Calculation of Stability, such as at the beginning of building: in order to increase buoyancy aid
Stability, it will usually install weight in float cabin, increase the ballast of buoyancy aid, to reduce the center of gravity of buoyancy aid, increases the steady of buoyancy aid
Property, but this structure can take the available space in float cabin, simultaneously it is possible to unexpected in exceedingly odious sea situation or boats and ships
Can topple under collision situation, and after once toppling, it is impossible to auto-strengthening, cause damage.
Utility model content
The purpose of this utility model is to provide auto-strengthening device after the toppling of a kind of single point mooring floating structure, and this device can
Ensure that floating structure is after toppling, it is possible within a short period of time realizes auto-strengthening, to maintain the normal work of system
State.
The technical solution of the utility model is as follows: the auto-strengthening device that topples of single point mooring's floating structure, be arranged on buoyancy aid and
Between buoyancy aid mooring anchor chain；Including being arranged on buoyancy aid lower surface, the supporting construction extended below buoyancy aid, described supporting construction
Lower section is provided with a righting swing arm, is flexibly connected, has a pouring weight, pouring weight below righting swing arm between righting swing arm and supporting construction
Lower section is connected with mooring anchor chain.
Preferably: supporting construction includes a frame structure, base of frame has a keyset, and righting swing arm connects with keyset
's.
Preferably: be hinged by universal between righting swing arm and supporting construction.Righting swing arm can freely swing around universal hinge and revolve
Turn.
Preferably: pouring weight is circular, and damped coefficient is little.
Preferably: under upright condition, the center of gravity of the Floating System that buoyancy aid is constituted with auto-strengthening device and centre of buoyancy are at same vertical
On line.
The beneficial effects of the utility model are:
1, compared with the mooring structure that traditional buoyancy aid bottom centre is mounted directly anchor chain, this utility model adds bottom buoyancy aid
One frame structure, tethers point is positioned at base of frame, reduces anchor system position of action point, adds the righting moment of anchor system, strengthens
The stability of surface buoyancy aid.
2, buoyancy aid under(-)chassis lower end connects single pendulum structure, and the pouring weight of single pendulum, as outside ballast, reduces the position of centre of gravity of buoyancy aid,
Avoid the inconvenience at buoyancy aid interior compartment configuration ballast, add simultaneously and effectively utilize space within float cabin.
3, base of frame is hinged a single pendulum structure by universal, and this single pendulum can swing along with waving of buoyancy aid, can partly inhale
Receive the wave excitation energy that born of Floating System, reduce buoyancy aid and wave with wave and hang down to swinging and wait motion response, enhancing buoyancy aid resistance to
Ripple.
4, after moored float topples, single pendulum structure is rocked in base of frame plane under gravity, now pouring weight position of centre of gravity
Away from buoyancy aid centre of buoyancy position, produce a righting moment, ensure that under this state, righting arm GZ is respectively less than zero by calculating,
Can ensure that buoyancy aid can recover voluntarily to upright condition.
5, this utility model simple in construction, it is easy to manufacture and install, is particularly suitable for undersized single point mooring ocean and floats
On formula works, improve buoyancy aid sea-keeping in wave, and realize the auto-strengthening after buoyancy aid topples, it is ensured that the safety of device.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the stress schematic diagram after buoyancy aid tilts.
Fig. 3 is the upright condition statical stability curve of righting arm comparison diagram before and after buoyancy aid is equipped with auto-strengthening device.
Fig. 4 is this utility model configuration state after toppling and stress schematic diagram.
Fig. 5 is state of the toppling statical stability curve of righting arm comparison diagram before and after buoyancy aid is equipped with auto-strengthening device.
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 it is shown in figure 1, the auto-strengthening device that topples of single point mooring's floating structure, it is arranged on buoyancy aid 1 and buoyancy aid mooring anchor chain
Between 6；Including being arranged on buoyancy aid 1 lower surface, the supporting construction extended below buoyancy aid 1, supporting construction is buoyancy aid and holds up
Equipment provides the effect of switching.Designing for convenience, also for the stability of structure, supporting construction uses framework 2 structure,
Framework 2 uses tubing or section bar to make, and for polygonized structure, in the case of buoyancy aid 1 top-ups, reduce buoyancy aid 1 is anchor point.
The lower section of the bottom of framework 2 has the structure of one and righting swing arm 4 switching, and this exchanging structure includes a keyset 9, turns
Fishplate bar 9 fills for flat board, is parallel to the direction on sea.Righting swing arm 4 uses rigidity material, for metal tube or metal bar, vertically
Downwardly extending, be active link between righting swing arm 4 and keyset, righting swing arm 4 can turn with the junction of keyset 9 around it
Dynamic.In the present embodiment, being provided with universal hinge 3 at keyset, righting swing arm 4 is connected with keyset 9 by universal hinge 3,
Under the effect of wave, righting swing arm 4 carries out rotating freely waving around universal hinge 3, absorbs a part of wave and is applied on buoyancy aid 1
Energy, adapt to all directions wave incentive action.
There is a pouring weight 5 below righting swing arm 4, be integrated between pouring weight 5 and righting swing arm 4 or dismountable structure, pouring weight 5
Lower section is connected with mooring anchor chain 6.Pouring weight 5 is metal or the cement pouring weight poured, in order to reduce resistance coefficient, outside pouring weight 5
Shape is designed as spherical.With traditional anchor chain directly compared with the structure that buoyancy aid 1 connects, the installation of pouring weight 5 reduces whole buoyancy aid
The center of gravity of system, thus add the stability of buoyancy aid, meanwhile, pouring weight 5 can also absorb the energy waved that a part of wave brings
Amount, reduces the amplitude of waving of buoyancy aid 1, increases the seakeeping capacity of buoyancy aid 1.On the other hand, pouring weight 5 instead of and is arranged on buoyancy aid
Ballast in cabin, add and effectively utilize space within float cabin, it is to avoid in the inconvenience of buoyancy aid interior compartment configuration.
The Floating System that buoyancy aid 1 and erection device are constituted is designed as symmetrical structure, and under upright condition, buoyancy aid 1 fills with auto-strengthening
Put center of gravity and the centre of buoyancy of Floating System of composition on same plumb line.This structure is conducive to increasing the stability of whole Floating System.
The wave impact on buoyancy aid 1, relatively light in the case of, only can cause the swing of buoyancy aid 1, but what buoyancy aid 1 still kept top-uping
State, in this case, the Floating System floating situation on sea is as shown in Figures 2 and 3.
See Fig. 2, be a cross section tilting buoyancy aid 1.This buoyancy aid tilts certain angle φ under the effect of outside heeling moment,
Buoyancy aid 1 position of centre of gravity is G, is not changed in, and displacement of volume Δ is equal in weight with buoyancy aid, is also not changed in.But due to waterline
The change of position, the displacement of volume shape of buoyancy aid 1 changes, and centre of buoyancy is moved to B by B1Place.Now, center of gravity and centre of buoyancy are not
It is positioned at again on same plumb line, thus buoyancy and gravity form a couple, i.e. promote buoyancy aid 1 to be returned to original equilbrium position
Righting moment MR.Make straight line GZ from center of gravity G and be perpendicular to the vertical line by B1, then righting moment MRExpression formula is as follows:
MR=Δ GZ
Wherein, GZ is righting arm, calculates the righting arm corresponding to different angle φ, and is depicted as curve, i.e. obtains buoyancy aid
Curve of statical stability, as shown in Figure 3.If righting moment is in opposite direction with heeling moment, then GZ be on the occasion of, i.e. mean
When inclination external force once disappears, and it can make buoyancy aid 1 be returned to original equilbrium position of top-uping.If righting moment and heeling moment
Direction identical, then GZ is negative value, can promote buoyancy aid 1 continue tilt.
As shown in Figure 2, increasing after auto-strengthening device bottom buoyancy aid 1, the center of gravity of buoyancy aid 1 drops at G1, answering now
Former arm of force G1Z1 is more than former righting arm GZ, it was demonstrated that buoyancy aid 1 has bigger righting moment, stability under same tilt angle
It is improved.From figure 3, it can be seen that compared with the situation without auto-strengthening device, after increasing automatic floating device, buoyancy aid system
The righting arm of system will be greatly increased.
If sea situation is relatively severe, wave will produce relatively ill effect to buoyancy aid 1, more serious in the case of, buoyancy aid 1 can be caused
Toppling, in this case, buoyancy aid 1 system situation on sea is as shown in Figure 4 and Figure 5.
See Fig. 4, when buoyancy aid 1 can topple when exceedingly odious sea situation or fortuitous collision, due to self
Action of gravity, swing arm 4 can swing to the bottom patch plate 9 of under(-)chassis around universal hinge 3, the centroidal distance buoyancy aid of pouring weight 5
The distance of centrage is approximately pendulum arm length, and therefore the overall center of gravity of buoyancy aid 7 is not arranged on the same straight line be with buoyancy aid centre of buoyancy 8, can shape
Become righting moment M.Under the combination of different swing arm 4 length and pouring weight 5 weight, the mass parameter of buoyancy aid 1 is different, quiet
Stability is the most 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 respectively less than zero in the range of 180 °, can ensure that buoyancy aid 1 can under this single pendulum configuration status
Realize auto-strengthening.
See Fig. 5, as a example by the disc type single point mooring Wave energy electric generator of a diameter 6m, calculate it and be equipped with auto-strengthening dress
The stability curve of righting arm of the state of toppling before and after putting.Solid line is that bottom does not has the buoyancy aid 1 of auto-strengthening device after toppling
Curve of righting arm, by curve, after buoyancy aid 1 topples, in the range of its roll angle is approximately less than 75 °, answering of buoyancy aid 1
Former arm of force GZ be on the occasion of, illustrate that buoyancy aid 1 possesses certain restoring moment in this range, the buoyancy aid 1 i.e. toppled can not realize
Auto-strengthening, only after the angle of inclination of buoyancy aid is more than 75 °, buoyancy aid 1 could reset into upright condition voluntarily.But it is equipped with
The buoyancy aid 1 of auto-strengthening device is after toppling, and its righting arm GZ is consistently less than zero in the range of 180 °, buoyancy aid 1 is described
After toppling, its righting moment is identical with the direction of heeling moment, buoyancy aid 1 can be promoted to continue to tilt, can automatically revert to top-up
State.
Claims (5)
1. the auto-strengthening device that topples of single point mooring's floating structure, it is characterised in that: it is arranged between buoyancy aid and buoyancy aid mooring anchor chain；
Including being arranged on buoyancy aid lower surface, the supporting construction extended below buoyancy aid, a righting is installed below described supporting construction
Swing arm, is flexibly connected between righting swing arm and supporting construction, has a pouring weight below righting swing arm, with mooring anchor chain below pouring weight
It is connected.
2. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, it is characterised in that: described support is tied
Structure includes a frame structure, and base of frame has a keyset, and righting swing arm connects with keyset.
3. the auto-strengthening device that topples of single point mooring as claimed in claim 1 or 2 floating structure, it is characterised in that hold up described in:
Just it is hinged by universal between swing arm and supporting construction.
4. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, it is characterised in that: described pouring weight is
Circular.
5. the auto-strengthening device that topples of single point mooring as claimed in claim 1 floating structure, it is characterised in that: under upright condition,
The center of gravity of the Floating System that buoyancy aid is constituted with auto-strengthening device and centre of buoyancy are on same plumb line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213194.8U CN205632955U (en) | 2016-03-18 | 2016-03-18 | Automatic righting device that topples of single point mooring floating structure thing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620213194.8U CN205632955U (en) | 2016-03-18 | 2016-03-18 | Automatic righting device that topples of single point mooring floating structure thing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205632955U true CN205632955U (en) | 2016-10-12 |
Family
ID=57076573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620213194.8U Expired - Fee Related CN205632955U (en) | 2016-03-18 | 2016-03-18 | Automatic righting device that topples of single point mooring floating structure thing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205632955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584603A (en) * | 2016-03-18 | 2016-05-18 | 中国海洋大学 | Automatic toppling centering device for single point mooring floating type structure |
| CN110525594A (en) * | 2019-07-25 | 2019-12-03 | 天津大学青岛海洋技术研究院 | A kind of jacket slides into water barge ship stability automatic adjusting method |
-
2016
- 2016-03-18 CN CN201620213194.8U patent/CN205632955U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584603A (en) * | 2016-03-18 | 2016-05-18 | 中国海洋大学 | Automatic toppling centering device for single point mooring floating type structure |
| CN110525594A (en) * | 2019-07-25 | 2019-12-03 | 天津大学青岛海洋技术研究院 | A kind of jacket slides into water barge ship stability automatic adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20200318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |