Marine eight-degree-of-freedom anti-swing gallery bridge stabilizing system and control method thereof

The eight-degree-of-freedom anti-sway bridge stabilization system employs independently motor-driven lateral and longitudinal anti-sway devices and horizontal control, combined with a lidar view camera and PLC processor. This solves the problems of limited lifting height control, inaccurate information acquisition, and slow response speed of the six-degree-of-freedom device, thereby improving the stability and safety of the platform.

CN120886970APending Publication Date: 2025-11-04SHANGHAI MARINE EQUIP CO LTD
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Patent Information

Application Number
CN202510935021.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

Existing six-degree-of-freedom wave compensation devices suffer from problems such as limited control over lifting height, inaccurate information collection, slow response speed, inability to lift or lower, and increased instability of the hull, leading to unsafe maritime operations.

Method used

An eight-degree-of-freedom anti-sway bridge stabilization system is adopted, including an anti-sway lifting system and a telescopic bridge device. Through the independent motor-driven lateral and longitudinal anti-sway devices and horizontal adjustment, coordinated control in eight directions is achieved. Real-time control is achieved by combining a lidar view camera and a PLC processor.

Benefits of technology

This improves the platform's stability and adaptability, ensuring the bridge remains stable in wind and waves and can be raised and lowered freely within an appropriate range, thus enhancing the safety and comfort of offshore operations.

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Abstract

A marine eight-degree-of-freedom anti-swing gallery bridge stabilizing system comprises an anti-swing lifting system and a telescopic gallery bridge device arranged on the upper portion of the anti-swing lifting system. The anti-swing lifting device is fixedly connected with a deck of a ship body through a base, and the anti-swing lifting system is composed of a horizontal left-right rotating device arranged on the upper plane of the base, a transverse anti-swing longitudinal anti-swing device arranged on the upper portion of the horizontal left-right rotating device, and a longitudinal anti-swing device arranged on the lower portion of the base. The lifting devices are arranged on the left side and the right side of the transverse anti-swinging and longitudinal anti-swinging device and on the bottom base; the telescopic gallery bridge device is erected on a rolling platform at the upper part of a transverse anti-swinging device and a longitudinal anti-swinging device which are arranged between the left frame and the right frame of the lifting device in a stacked manner; the whole telescopic gallery bridge device can swing left and right, transverse and longitudinal state adjustment can be achieved under the action of the transverse anti-swing and longitudinal anti-swing device, and eight-degree-of-freedom regulation and control of the whole telescopic gallery bridge device can be achieved under the action of the lifting device.
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Citation Information

Patent Citations

  • Lifting type wave compensation trestle

    CN119332584A

  • Lifting type wave compensation trestle

    CN119352386A

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