Sunken ship salvage hydraulic lifting and semi-active heave compensation simulation test platform

Abstract

The present invention relates to a sunken vessel salvage hydraulic lifting and semi-active heave compensation simulation test platform which is used to simulate synchronous lifting of double barges. Asunken vessel lifting system is provided with compensation lifting mechanisms and lifting mechanisms, and the compensation lifting mechanisms are the same as the lifting mechanisms in quantity to facilitate a contrast experiment; each two-degree-of-freedom simulation motion platform is provided with two power oil cylinders and one stand column, the two power oil cylinders and the stand column aredistributed in an isosceles triangle shape to simulate rolling and pitching of barges in sea waves and to be closer to a real salvage condition; the lifting mechanisms are provided with unidirectional locking mechanisms to lock unidirectional sliding of steel wire ropes so as to prevent the steel wire ropes from sliding back in the lifting process, prevent the steel wire ropes from winding through adoption of a take-up device and guarantee the test safety; and a sunken vessel simulation caisson is of a mesh-type cavity structure, modularization counter weights can be put in the mesh-type cavity to facilitate regulation of a tonnage, and the sunken vessel simulation caisson is put at a real water area to accord with the real sunken vessel state.

Description

technical field [0001] The invention belongs to the technical field of ocean engineering, and relates to salvage technology for sunken ships at sea, in particular to a hydraulic lifting and semi-active heave compensation simulation test platform for salvaging sunken ships that simulates synchronous lifting of double barges. Background technique [0002] Wreck salvage has always been the focus and difficulty in maritime management. Information such as the tonnage of the wrecked ship, the attitude of the wreck, and the depth of the wreck will directly affect the method and efficiency of salvage, especially the wreck salvage is greatly affected by the environment. Compensation ability, and because the tonnage of the sunken ship is generally large, the system is required to have a large traction force. [0003] CN107631893A discloses a heave compensation test bench for simulating a hydraulic jack to simultaneously lift a sunken ship, such as Figure 8 As shown, the test bench in...

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Problems solved by technology

[0005] 2. The platform has no design for one-way locking and take-up of the wire rope. Without a one-way locking mechanism, the wire rope will inevitably cause the wire rope to slip back when the lifting cylinder returns. Without a take-up, the wire rope will hang or even entangle on site. ;

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