SU1423670A1 - Shock-absorbing mooring arrangement - Google Patents

Abstract

I. The invention relates to o6, i; u TH i il- rote.khnicheskogo build, thirtieth. The whole) ichours is an improvement of the ex11. | Uatani () 11111.1 qualities. The device includes a frame I. e) an ola and a smaller buoyancy. The framework I c (je; uiHeH with 1K) M () N1so nisoelinite.I) - us. e, ne.1tentov 4 and hinges with OHopoii 3 and with a massive body of 8 bond 9. 9. The mass part (GG) is 15N1 in the form of cargo lying at the bottom of the water area. Fixation nodes 9 may be several. The shock absorbing intrinsic ycTpoiicTBO absorbs the bulk energy of the vessel due to a change in foot. yuzheii own t center of tin. The proposed device helps to reduce the dependence of the device operability of the support str to which it is attached. 2 l. n f-ly, 4 ill. (L

Description

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The invention relates to hydraulic engineering construction and can be used as a mooring facility both in protected waters (ports) and in the open sea (fixed offshore platforms), including when the sea level fluctuates.

The purpose of the invention is to improve performance.

FIG. 1 shows a damping mooring device, general view; in fig. 2 — A frame connecting unit with a connecting element and a load; in fig. 3 - an element of the device load; in fig. 4 - damping mooring device, brought to the non-working position in the presence of ice or extreme wave conditions in the water area, general view.

Shock-absorbing mooring device 1Frames frame 1, fixed by 1-hinged joints 2 to support 3 with the help of connecting elements 4. On the frame 1 there can be shock absorbing devices 5. Connecting elements 4 are inclined to the horizontal plane at an angle a by placing the hinged nodes 2 below the water level 6. The frame 1 interacts with the mooring vessel 7. Cargo 8, which lies at the bottom of the sea, is connected to frame I by link 9.

FIG. 2 shows a frame I of a damping mooring device to which a weight 8 is attached at one of the nodes K) of fixing the connection 9.

The cargo 8 of the damping mooring device may consist of several elements 11 connected in series by flexible connections 12. The cargo 8 rests on the platform 13, which lies on the bottom 14 of the sea. The mooring device can be equipped with a ballasting system 15 controlled dive-fly.

Damping mooring device operates as follows.

With a berth of a mooring vessel 7, which has a kinetic energy E ,, the device absorbs this energy by changing its own potential energy EP, i.e. E, E ".

In this case, the damping devices 5 undergo a deformation, which flows with the energy absorption of Yel and also rotates relative to the spherical nodes 2 of the support 3 of the connecting elements 4 with the frame 1. During rotation, the position of the center of gravity of the damping device changes and consequently, the change in its potential energy

 Ah;

where Gj is the weight of the device as a whole, taking into account the weighing effect of water 6;

Е, + Еп2.

The choice of the magnitude of the angle a by placing the hinge assemblies 2 below the water level 6 provides a useful ratio between the horizontal displacement A1 and the energy absorbed En.

The weight of device C is composed of the weights of the elements of the device, including the load 8, connected to the skeleton by the link 9. Therefore, GJ.- Ahrp -f-GnpoH. Ahnpo4., 1 de Grp. and GnpoM. respectively, the weight of the load 8 and the weight of the other elements of the device, taking into account the weighing effect of water Ahrp and Ahnpo i, respectively, the change in height of the position of the cent, the weight of the load and other elements of the device. Changing the points of attachment of the load 8 in the nodes 10 due to their location at different distances from the hinge nodes 2, it is possible to adjust the value of Ahrp, i.e., it is possible to adjust the type of energy with its constant deformation characteristics of the system.

Performing cargo 8 in the form of several elements 11 connected by flexible connections 12 provides, along with the damping properties of links 9, a decrease in the dynamic factor when the vessel strikes the frame 1. When the bottom of the sea has properties, create a suction load 8 it it does not rest on the ground, but on the platform 13, which lies at the bottom of the 14th sea.

The controlled diving-vortex ballasting system 15 provides for the transfer of the shock absorber mooring device into the state of a sludge underwater and its subsequent conversion into a working mode again.

The use of this device reduces the load on the support to which it is fixed, and also improves the operation of the mooring facility when the water level fluctuates. The device is not loaded with large loads during the excitement, since it does not have high military loads in the zone — near the surface of water-free surfaces. The device can be used when mooring vessels with very different water dimensions.

Claims (3)

1. A. A damping mooring device, including a massive gel, connecting elements fixed to the support by means of hinged nodes and inclined in the direction of movement under angle, characterized in that. that, in order to improve performance, the device is equipped with a frame that has positive buoyancy and a connection connecting the frame with a massive body, the massive body being made in the outboard area lying on the bottom of the water area, and the hinged nodes of the connecting elements are located in the underwater zone. 2. A device according to claim 1, characterized in that the frame is provided with several communication fixation units located at different distances from the hinge attachment points to the support. 3. The device according to PP. 1 and 2, reflecting on that. that the load is made in the form of a set of several elements, at least some of which are connected in series by flexible connections. T // 13 t / J d T rigz (ffue