Launch and recovery techniques for submersible vehicles and other payloads

A material and thruster technology, applied to underwater ships, transportation and packaging, clockwork mechanisms, etc., can solve problems such as inability to compensate for surface ship fluctuations, and achieve the effect of easy positioning and ascent

Inactive Publication Date: 2014-10-22
SUBSEA 7 BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A constant pull crank is disclosed, but it does not compensate for surface ship fluctuations

Method used

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  • Launch and recovery techniques for submersible vehicles and other payloads
  • Launch and recovery techniques for submersible vehicles and other payloads
  • Launch and recovery techniques for submersible vehicles and other payloads

Examples

Experimental program
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Embodiment Construction

[0038] The two methods according to the present invention will be described in detail below. Both methods exemplify an AUV bank or basket delivered to the seabed, although the invention can be used with other supplies requiring delivery to or recovery from the seabed or other subsea locations, including midwater locations. In each case, the subsea location is fully submerged or below the surface such that the material is fully submerged while connected to the lift line at that location.

[0039] The first method leaves the materiel attached to the lift line and will refer to figure 1 The first method is described. The materiel in this example is an AUV basket that can simply launch and / or recover an AUV (not shown) during a brief stay on the seabed where the basket remains connected to a support vessel by a lift line.

[0040] refer to Figure 2 to Figure 9 The second method described is an extension of the first method. It allows material to be left on the seabed or relea...

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PUM

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Abstract

A subsea payload such as an AUV or an AUV garage 22 is lifted from an underwater location by flying a latch unit 38 through the water to the payload. The latch unit carries a lift line 20 toward the payload. The latch unit is then attached to the payload and the payload is lifted using tension applied through the lift line via the latch unit. The latch unit can also be used on a lift line to lower a payload and then to release the payload at an underwater location. The lift line may be supported by a heave-compensating winch 12 on a surface vessel 10 that may effect z-axis movement of the latch unit. The winch may maintain tension on the lift line to prevent the lift line falling on the payload. Movement of the latch unit on x- and y- axes may be effected by on-board thrusters (48, Fig 5).

Description

technical field [0001] The present invention relates to the delivery of material to and recovery from subsea locations, including seabed and midwater locations. The present invention relates to specific applications in launch and recovery systems (LARS) for submersibles, such as building autonomous underwater vehicles (AUVs), when deep water engines operate. Background technique [0002] Examples of LARS or AUVs are described in the applicant's previously filed patent application published as GB2453645. Here, the AUVs are deployed on a diving station, which can also be described as a dock or garage for the AUVs. The platform to which the AUV is launched swings overboard from a support vessel on a line lift and quickly descends into the water. In this regard, it is advantageous to minimize the time spent passing through the turbulent splash zone near the water surface. Otherwise, the slack in the lift line may result in a grab load when the AUV / platform combination passes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B27/36B63G8/00
CPCB63G8/001B63G2008/007B63C7/20B63B23/40B63B27/08B65G67/62B66C1/66B66C13/02B66D1/48B63B27/36B63C11/42B63B27/00B63G2008/004B66D1/60
Inventor J·A·贾米森G·吉本斯L·威尔逊
Owner SUBSEA 7 BV
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