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WO2010086666A2 - Organe d'amarrage - Google Patents

Organe d'amarrage Download PDF

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Publication number
WO2010086666A2
WO2010086666A2 PCT/GB2010/050144 GB2010050144W WO2010086666A2 WO 2010086666 A2 WO2010086666 A2 WO 2010086666A2 GB 2010050144 W GB2010050144 W GB 2010050144W WO 2010086666 A2 WO2010086666 A2 WO 2010086666A2
Authority
WO
WIPO (PCT)
Prior art keywords
limb
mooring
fluid
resilient
chamber
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.)
Ceased
Application number
PCT/GB2010/050144
Other languages
English (en)
Other versions
WO2010086666A3 (fr
Inventor
David Parish
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Exeter
Original Assignee
University of Exeter
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by University of Exeter filed Critical University of Exeter
Publication of WO2010086666A2 publication Critical patent/WO2010086666A2/fr
Publication of WO2010086666A3 publication Critical patent/WO2010086666A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
    • B63B2021/005—Resilient passive elements to be placed in line with mooring or towing chains, or line connections, e.g. dampers or springs

Definitions

  • the present invention relates to a mooring limb, a method of mooring an object and a method of damping the movement of an object.
  • the invention relates to a damping mooring limb.
  • Mooring limbs, legs, tethers, or lines are required for mooring objects, such as ships, pontoons, and buoys so that they do not move too much relative to the land beneath the surface of the water.
  • mooring objects such as ships, pontoons, and buoys
  • Known mooring limbs typically comprise ropes or chains.
  • the present invention may be either taut and/or slack in use.
  • a known system which overcomes this problem is provided in the form of a resilient limb comprising rubber-type materials. These limbs allow for an extension and contraction of its longitudinal length whilst maintaining tension therein. This allows for the object to rise and fall with the tides, waves and other movements of the water whilst remaining on station.
  • the present invention provides an alternative system for mooring substantially floating objects which also allows for the damping, with controllable frequency response, of the oscillations often induced in such a system.
  • the invention provides a mooring limb for use in a fluid comprising at least one substantially impervious sleeve defining at least one chamber, wherein the shape of the at least one chamber is variable, the device including at least one orifice for allowing a fluid into and/or out of the at least one chamber.
  • the shape of the at least one impervious sleeve may be variable and the variability of the shape of the at least one chamber may be proportional to the variability of the shape of the at least one impervious sleeve.
  • the shape of the at least one chamber may be variable by virtue of the shape of the impervious sleeve being variable without an additional body entering or exiting the chamber.
  • the impervious sleeve may be flexible.
  • the at least one chamber may have a longitudinal axis and a radial axis, wherein the longitudinal length measured along the longitudinal axis may be substantially greater than the radial width measured along the radial axis.
  • the at least one chamber may be substantially spherical.
  • the at least one chamber may be fluid-tight, apart from the at least one orifice.
  • the shape of the at least one impervious sleeve may be substantially cylindrical with end pieces closing the chamber.
  • the at least one impervious sleeve may be gathered at each longitudinal end such that the radial width reduces at each end.
  • the at least one impervious sleeve may comprise hyperlon.
  • the fluid may be sea water, fresh water, or may comprise other fluids such as the tailings from industrial processes.
  • the fluid may act as a damping medium.
  • the at least one chamber may be completely filled with the fluid.
  • the volume of the at least one chamber will decrease as the cross-sectional area, measured radially, decreases. Fluid within the at least one chamber will thus be forced out of, or expelled from, the orifice.
  • the volume of the chamber will increase as the cross-sectional area, measured radially, increases. Fluid will thus be sucked into the at least one chamber through the orifice.
  • the mooring limb may be a damping mooring limb for damping oscillations induced in the limb, and/or the object to which it is attached, in use.
  • the oscillations induced in the limb may be related to changes in the volume of the at least one chamber, and the oscillations in the object may relate to its movement relative to a stationary object such as the sea bed.
  • the mooring limb may include frequency control means for variably adjusting the damping frequency response of the limb to the oscillations induced in the limb, and/or the object to which it is attached, in use.
  • the oscillation of the object, to which the limb is attached may be caused by more than one factor such as waves and tides.
  • Each factor may have a different frequency.
  • the overall frequency of the oscillation of the object may thus be a result of the combination of the various factors.
  • the mooring limb may be tuned to damp an individual frequency of one of the factors, or to damp the resultant frequency on the mooring limb, and/or the object to which it is attached, or any other frequency as required.
  • the frequency control means may comprise the at least one orifice.
  • the at least one orifice may include flow rate control means for controlling the flow of the fluid into and/or out of the at least one chamber so as to limit and/or vary the rate of change of the shape of the limb.
  • flow rate control means for controlling the flow of the fluid into and/or out of the at least one chamber so as to limit and/or vary the rate of change of the shape of the limb.
  • valves may be employed in association with the orifice.
  • the valves may be non-return (one-way), or two-way.
  • the volume flow rate through the orifices may be variable, for instance by adjusting the cross-sectional area of the inlet/outlet.
  • the orifices may be completely sealable to prohibit flow through them. This variation may be manual and/or may be achieved remotely via, for instance, the use of motors and/or hydraulic/pneumatic controls.
  • the valves may be pressure-relief valves such that an increase and/or decrease above and/ or below one or more threshold values may open or close them.
  • the volume flow rates and other characteristics of the orifices may be pre-set prior to installation, in anticipation of the specific requirement of each installation.
  • the rate at which the shape, and thus the length, of the limb changes may be controllable. For example, it may be slowed such that the length of the limb increases and/or decreases, and thus its shape changes, at a controlled rate. Also, if the valves are closed then further extension of the limb may be prevented since fluid will not be able to leave the at least one chamber. In this way, the frequency of the oscillations induced in the limb, and/or object to which it is attached, may be controllably damped.
  • the rate of change of the volume flow rate of the fluid entering and/or exiting the at least one chamber may be non-linear. This is because the volume of the at least one chamber may change non-linearly with respect to the change in length of the at least one chamber.
  • the limb may be tuned so as to be more, or less, effective at damping those oscillations. This may be effected by adjusting the volume flow rate of fluid entering and/or exiting the at least one chamber by means of the flow rate control means.
  • the limb may include a resilient sleeve.
  • the resilient sleeve may be braided.
  • the resilient sleeve may be of stainless steel and/or of textile.
  • the resilient sleeve may be resilient in the longitudinal direction of the limb.
  • the term 'longitudinal direction' means the axis of the limb between the two points at which it is attached to the land surface beneath the fluid and the moored object. Additionally, or alternatively, it may be resilient in the radial direction of the limb.
  • the term 'radial direction' means either of the axes perpendicular to the longitudinal direction of the limb.
  • the resilience may be achieved by the braiding comprising a criss-crossing arrangement of braids in a similar manner to stents known in the medical field. It is contemplated that instead of the limb being attached, or connected, directly or indirectly to a land surface it may be attached to another object in the fluid, such as another moored object.
  • the resilience may allow for the longitudinal length, and thus the shape, of the limb to be varied while still providing strength and protection to the impervious sleeve.
  • the resilient sleeve may be located radially outward of the at least one impervious sleeve. It is also possible that this sleeve is located radially inward of the at least one impervious sleeve. It is also possible that this sleeve is integral with the at least one impervious sleeve and/or be provided within the at least one impervious sleeve.
  • the impervious sleeve may be linked to the impervious sleeve in some way so that the change in its length and diameter directly influence the change in the length and diameter of the impervious sleeve.
  • some of the braids may pass through loops or straps provided on the inner or outer surface of the impervious sleeve so as to help pull, or push, the impervious sleeve back into shape after it has been squashed by the braided sleeve, in use.
  • the resilient sleeve and the impervious sleeve may be separate from one another.
  • the resilience of the resilient sleeve may urge the limb to retain a defined shape such that when the shape is changed due to a force provided on it by the moored object the resilient sleeve urges the limb to regain its original shape.
  • the resilient sleeve may also provide tension along the length of the limb.
  • the rate of change of the shape of the limb due to the resilience of the resilient sleeve may be non-linear.
  • This non-linearity may be controllable by varying certain qualities of the resilient sleeve, such as the types of materials and its shape.
  • This non-linearity may be exploited as well as, or instead of, the non-linearity discussed above with regard to the volume flow rate through the at least one orifice so as to provide an additional way of tuning the limb to damp induced oscillations.
  • Means of attaching the limb to a fixed object, such as an anchor point provided on the land surface beneath the fluid, and to the object to be moored may be provided. These means may be connected to the at least one impervious sleeve and/or the resilient sleeve.
  • the limb may include a first resilient means, being resilient in the radial direction, located radially inward of the impervious sleeve for providing a force in a substantially radially outward direction.
  • This first means may comprise one or more scroll-type springs.
  • the axis about which they are wound may lie parallel to the longitudinal axis of the limb. They may lie such that they press against the inside of the at least one impervious sleeve.
  • the springs may become compressed, or further wound, such that their outer dimension (measured in the radial plane of the limb) decreases.
  • the pressure exerted on the inside of the impervious sleeve may help to maintain its overall shape and help the at least one impervious sleeve, and thus the limb, to re-establish its original shape when the tension force pulling on the limb reduces.
  • Other means of providing this resilience are contemplated such as coil springs arranged substantially across the radial axis.
  • the first resilient means could be located radially outward of the at least one impervious sleeve, and/or could be incorporated within the at least one impervious sleeve.
  • the mooring limb may include a second resilient means, being resilient in the longitudinal direction, located radially inward of the at least one impervious sleeve.
  • This second resilient means may be an elastic member comprised of rubber-type materials. It may extend along the entire length of the limb. Its ends may project through the at least one impervious sleeve and connect with the means of attachment discussed above for connection to the external anchor/mooring points. Alternatively, or additionally, they may connect with the resilient sleeve and/or the at least one impervious sleeve.
  • this second resilient means provides tension in the limb to aid the re- establishment of the original shape of the at least one impervious sleeve, and thus the limb, after its shape has been changed due to the external forces provided on it.
  • this second resilient means may be located radially outward of the at least one impervious sleeve and/or could be incorporated within the at least one impervious sleeve and/or first resilient means. Moreover, there may be more than one second resilient means.
  • the rate of change of the shape of the limb due to the resilience of the second resilient means may be non-linear.
  • This non-linearity may be controllable by varying certain qualities of these means, such as the types of materials and its shape.
  • This non- linearity may be exploited as well as, or instead of, the non-linearity discussed above with regard to the volume flow rate through the at least one orifice, and/or the resilient sleeve, so as to provide additional ways of tuning the limb to damp induced oscillations.
  • the at least one impervious sleeve itself is resilient in the radial and/or axial directions. This may be due to additional resilient means embedded within, or attached to its walls, or could be by virtue of the characteristics of the material(s) used in the at least one impervious sleeve's composition.
  • the impervious sleeve may provide a radial restoring force such that when it is extended longitudinally, and correspondingly its cross-sectional area is reduced, the force acts to increase the cross-sectional area and thus shorten the longitudinal length.
  • the impervious sleeve may be, or provide, a third resilient means. The magnitude of this restoring force may be such that it will only effectively reduce the extended length and increase the reduced cross-sectional area when the tension in the limb is less than a predetermined threshold value.
  • the magnitude of the restoring force (which may be defined as the elasticity of the impervious sleeve) may be affected, as stated above, by the thickness, composition and other characteristics of the material comprising the sleeve.
  • the radial thickness of the wall of the impervious sleeve (which is not to be confused with the radial width of the limb) may lie in the range 0.1 mm to 50 cm, preferably 1 mm to 100 mm, although other thicknesses are contemplated. It may be that a relatively thick sleeve will provide more elasticity or restoring force than a relatively thin sleeve.
  • the impervious sleeve may comprise materials such as one or more of acrylonitrile butadiene rubber, polyurethane, and polymer blends etc.
  • the limb may be arranged such that the at least one impervious sleeve may collapse, and thus be collapsible, possibly in a concertina fashion, if its overall longitudinal length is less than its relaxed/unstressed length. This may be effected by any one or more of the resilient means discussed above reducing the longitudinal length of the limb.
  • the impervious sleeve may be substantially cylindrical in form although the cross- sectional shape is not limited to circular as other cross-sectional shapes are contemplated such as oval, square, rectangular, hexagonal, octagonal, or polygonal. Furthermore, the cross-sectional area and/or shape may vary along its axial length, for example, a substantially spherical or oval shape is possible. This may be useful in accommodating differing compressional forces provided axially along the limb by the resilient sleeve and/or first resilient means described above. For instance, greater radially directed compressive forces may be provided by the resilient sleeve towards the middle of its axial length compared with towards its axial ends.
  • the rate of change of the shape of the limb due to the resilience of the at least one impervious sleeve may be non-linear. This non-linearity may be controllable by varying certain qualities of the at least one impervious sleeve, such as the types of materials and its shape.
  • This non-linearity may be exploited as well as, or instead of, the non-linearity discussed above with regard to the volume flow rate through the at least one orifice, and/or the resilient sleeve, and/or the second resilient means, so as to provide additional ways of tuning the limb to damp induced oscillations.
  • the mooring load may be carried by any one or more of the at least one impervious sleeve, the resilient sleeve, first resilient means and second resilient means.
  • the mooring limb may be a pumping mooring limb for pumping the fluid to a predetermined destination.
  • the fluid may be the fluid in which it is situated in use.
  • the limb may be used as a pump as well as, or instead of, a damping or a mooring limb.
  • the limb may include means for directing the fluid, as it leaves the at least one chamber, to an energy conversion apparatus. For instance, pipes or other conduits may be used, possibly with appropriate valve arrangements, to direct any fluid forced out of the at least one chamber.
  • the limb may include means for directing the fluid, as it leaves the at least one chamber, to a storage means.
  • the storage means may be at least partially submerged in the fluid, and/or it may comprise at least part of the tethered object. It also may comprise part of the tether.
  • the storage means may be a pressure vessel capable of receiving fluid at a higher than ambient pressure.
  • the limb may include means for receiving the fluid, from the storage means, into the at least one chamber.
  • the means for receiving the fluid may be the same as the means for directing the fluid as it leaves the at least one chamber. In this way, the fluid may be retained within a substantially sealed system.
  • the flow of the fluid between the at least one chamber and the storage means may be controllable by means of valves in a similar manner to that described herein (i.e. pressure controlled, non-return etc.). Control of the fluid flow, pressure and/or volume within the various components of the system (chamber, storage means and means of connection between the two) may be used to effectively control the extension and contraction of the limb.
  • the invention provides a method of mooring an object substantially floating in a fluid using at least one mooring limb, as described and/or claimed herein, comprising the steps of; directly or indirectly attaching one axial end of the device to the object and directly or indirectly attaching the other axial end to a substantially fixed object.
  • the term 'axial ends' may refer to the ends located at either end of the longitudinal length of the device. If the at least one chamber is substantially spherical then the axial ends may be located at opposite points around its outer surface. However, the attachment points do not necessarily have to be directly connected to the sphere as other possibilities described herein are contemplated.
  • the method may include the step of directing the fluid, as it leaves the at least one chamber, to a predetermined destination.
  • This may be an energy conversion apparatus.
  • the invention provides a method of damping the movement of an object substantially floating in a fluid, comprising the steps of; directly or indirectly attaching one axial end of at least one mooring limb, as described and/or claimed herein, to the object; directly or indirectly attaching the other axial end of the at least one limb to a substantially fixed object; controlling the flow of the fluid into and/or out of the at least one chamber to damp the change in the longitudinal length of the limb caused by movement of the object relative to the substantially fixed object.
  • the method may further comprise the step of directing the fluid, as it leaves the at least one chamber, to a predetermined destination.
  • This may be an energy conversion apparatus.
  • the limb may comprise more than one chamber. Some or all of these chambers may be fluidly interconnected by means of suitable conduits. The flow through the conduits may be controlled by valves or other such flow regulators. Some or all of these chambers may also be connected by physical means to provide tension in the device. For instance, cables, wires or chains may be used to interconnect them. It is also possible that the second resilient means may interconnect the chambers as well as, or instead of, the cables, wires or chains. It is also possible that the limb comprises more than one chamber of varying sizes and shapes. For instance, at one end the limb may comprise a substantially spherical, followed by a substantially cylindrical chamber, followed by another substantially spherical chamber. One resilient sleeve may be provided around all three chambers. Alternatively, more than one resilient sleeve may be provided around one or more chambers, the one or more resilient sleeves possibly being interconnected.
  • the limb according to the invention may be only a relatively short length of the overall mooring limb.
  • the overall mooring limb may comprise a mooring limb according to the invention, attached to the land beneath the fluid (or shore) at one end, and to the object to be moored at the other end, by means of chains, ropes or wires, wherein the combined lengths of the chains, ropes or wires are much longer than the length of the limb according to the invention.
  • the mooring limb according to the invention may be called a 'mooring component'.
  • Figure 1 is an elevational side view of a general arrangement of one embodiment of the invention in use
  • Figure 2 is a perspective view of the embodiment of Figure 1 ;
  • Figure 3 is a radial cross-sectional view of another embodiment of the invention having a first longitudinal length
  • Figure 4 is a longitudinal cross-sectional view of the embodiment of Figure 3;
  • Figure 5 is a radial cross-sectional view of the embodiment of Figures 3 and 4 having a second longitudinal length
  • Figure 6 is a longitudinal cross-sectional view of the embodiment of Figure 5.
  • FIG. 1 the limb is referenced '10'. It is shown mooring an object 20 which is floating at the surface 25 of a body of fluid to a fixed point 30, which in this case is a concrete block resting on the land surface (sea bed) 35 beneath the fluid.
  • the fixed point 30 and the object 20 include anchor points 40 between which the limb is arranged.
  • the limb 10 itself comprises an impervious sleeve 50 at each end of which are arranged connectors 60, which are simple loops in the present case.
  • Standard chains or ropes 70 are used to connect the anchor points 40 to the connectors 60.
  • the length of the limb 10 is shown as approximately equal in length to the sum of the two lengths of chains or ropes 70, it might be substantially less than this summed length such that it forms only a relatively short part of the overall length of the mooring member (comprising the limb 10 and chains or ropes 70).
  • only one limb 10 is shown it is contemplated that more than one may be used with the same floating object 20 and the same, or one or more other, fixed points 30 such that the object 20 is maintained 'on station'.
  • FIG. 10 One embodiment of the limb 10 is shown in more detail in Figure 2. It comprises the impervious sleeve 50 and an inlet/outlet means 80 provided on its surface.
  • the inlet/ outlet means includes a valve 90. Although shown as a single inlet/outlet, it is contemplated that the inlet and outlet may be separate from one another.
  • the inlet/outlet 80 may be located on the ends or the sides of the substantially cylindrical impervious sleeve 50.
  • the limb 10 also includes connectors 60 provided at each longitudinal end thereof.
  • These connectors 60 comprise relatively short lengths of rope, chain, cable etc. attached at one end to the limb 10 and having loops or shackles at the other end.
  • FIG. 3 shows an alternative embodiment of the limb 110.
  • the view is a radial cross-section along the longitudinal axis of the limb 110.
  • the impervious sleeve is referenced 150.
  • Radially outward of the impervious sleeve 150 a braided outer sleeve 155 is provided. Only a few of the wires forming this braided outer sleeve 155, as discussed below, are shown for the sake of clarity.
  • an inner resilient member 180 is provided substantially along the longitudinal axis of the limb 110.
  • An additional resilient member 170 is also provided radially inward of the impervious sleeve.
  • the inner resilient member 170 may be a substantially cylindrical length of rubber- type material or other such elastic/resilient material. Cross-sectional shapes other than circles are contemplated for this inner resilient member, such as square.
  • the additional resilient member 170 is shown as a coil having an overlap of only approximately 100 degrees. However, the overlap may be more or less, for instance, 10 - 180 degrees. Other overlapping dimensions are possible. Furthermore, it may be possible not to have an overlap.
  • FIG. 3 The view in Figure 3 is one of the limb 110 in a relaxed state having an original unstressed and unchanged shape.
  • FIG. 3 The entire length of the limb 110 is visible. It comprises the impervious sleeve 150 which is a substantially cylindrical 'sausage' shape. The impervious sleeve 150 is surrounded by the braided outer sleeve 155. This takes the form of a criss-cross arrangement of wires which lie circumferentially around the impervious sleeve 150 and at two different angles to the radial plane of the limb 150. A first set of wires are arranged at one angle (approximately 45 degrees clockwise from the radial plane) and a second set are arranged at another angle (approximately 45 degrees anticlockwise from the radial plane). The sleeve 155 is reduced in diameter at each end as it is 'throttled down' or 'gathered in' to be received in a ferrule 165.
  • a resilient means 180 is provided along the longitudinal axis of the limb 110. It extends between the two longitudinal ends of the limb 110.
  • the resilient means 180 is connected to the ferrules 165 at each end thereof.
  • the resilient means 180 may be linked to the impervious sleeve 150 such that its length changes correspondingly with a change in length of the impervious sleeve 150.
  • the resilient means 180 may, relatively freely, pass through the ends of the impervious sleeve 150 such that the change in length of the resilient means 180 is partially, or completely, independent of the change in length of the impervious sleeve 150.
  • the ferrules 165 are also connected to the braided outer sleeve 155.
  • Inlet and outlet means 80 are provided through the impervious sleeve 150 to allow fluid to ingress and egress into and out of the inner chamber formed by the impervious sleeve 150.
  • Connectors 160 are provided at each longitudinal end of the limb 110 connected to the ferrules 165, such that any tension imposed on the limb 110 is transmitted via the connectors 160, to the ferrules 165 and thus the resilient sleeve 155 and the resilient means 180.
  • the additional resilient means 170 has become further wound such that the overlap is now approximately 260 degrees.
  • other overlaps are contemplated, for instance, in the range 180 to 360 degrees.
  • the braided outer sleeve 155 has altered in shape such that its longitudinal length has increased commensurate with the increase in longitudinal length of the limb 110, and its radial dimension has decreased commensurate with the decrease in the radial dimension of the limb 110.
  • the length of the impervious sleeve 150 has remain unchanged. However, its radial dimension (or diameter) has been reduced. This has been effected by the braided sleeve 155 pressing radially inward against the impervious sleeve 150. Accordingly, the volume of the chamber defined by the impervious sleeve 150 has decreased.
  • the two sets of braids discussed above have also altered their angles relative to the radial plane.
  • the first set now lies at an angle approximately 60 degrees clockwise from the radial plane and the second set now lies at an angle approximately 60 degrees anticlockwise from the radial plane.
  • the overall longitudinal length of the limb may lie in the range 1 metre to 20 metres.
  • the radial dimension of the limb may lie in the range 15 cm to 200 cm.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Prostheses (AREA)
  • Massaging Devices (AREA)

Abstract

La présente invention se rapporte à un organe d'amarrage destiné à être utilisé dans un fluide comprenant au moins un manchon sensiblement imperméable délimitant au moins une chambre, la forme de la ou des chambres étant variable, le dispositif comprenant au moins un orifice pour permettre à un fluide d'entrer dans la ou les chambres et/ou d'en sortir. L'organe d'amarrage peut servir de pompe et/ou de dispositif d'amortissement.
PCT/GB2010/050144 2009-01-30 2010-01-29 Organe d'amarrage Ceased WO2010086666A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0901529.8 2009-01-30
GB0901529A GB2467345A (en) 2009-01-30 2009-01-30 Mooring limb

Publications (2)

Publication Number Publication Date
WO2010086666A2 true WO2010086666A2 (fr) 2010-08-05
WO2010086666A3 WO2010086666A3 (fr) 2011-03-24

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PCT/GB2010/050144 Ceased WO2010086666A2 (fr) 2009-01-30 2010-01-29 Organe d'amarrage

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GB (1) GB2467345A (fr)
WO (1) WO2010086666A2 (fr)

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Cited By (2)

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CN119611631A (zh) * 2024-12-05 2025-03-14 天津大学 一种用于削减海上漂浮式光伏系泊力峰值的水阻尼弹性索
CN119611631B (zh) * 2024-12-05 2025-10-28 天津大学 一种用于削减海上漂浮式光伏系泊力峰值的水阻尼弹性索

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