A magnetic-water composite damping bearing based on adaptive regulation of polar magnetic field

By adaptively adjusting the magnetic field distribution and water film state of the magnetic-water composite vibration damping bearing, the problems of uneven load and vibration noise of the magnetic-water composite main bearing under complex sea conditions have been solved, realizing low noise and high reliability operation of high-performance ships.

CN122014749BActive Publication Date: 2026-06-09DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Filing Date
2026-04-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing magnetic-water composite main bearings are difficult to flexibly adjust the magnetic field distribution and achieve coordinated compensation of the water lubrication film under complex sea conditions, resulting in uneven load distribution, high vibration and noise, and difficulty in meeting the low noise and high reliability operation requirements of high-performance ships.

Method used

By employing an adaptive magnetic pole distribution unit, a distributed induction unit, and a dual-loop controller, and through the cooperation of a permanent magnet bias body and an electromagnetic correction coil, the magnetic flux density and water film state are adjusted in real time to form a magnetic-water composite vibration damping bearing with adaptive load-bearing and vibration reduction capabilities.

Benefits of technology

To improve load uniformity and impact resistance under complex operating conditions, reduce vibration and noise, ensure stable operation of bearings under power failure conditions, and improve the safety and reliability of ship propulsion systems.

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Abstract

The application belongs to the technical field of magnetic field regulation and fluid power support composite, and discloses a magnetic-water composite damping bearing based on polar region magnetic field self-adaptive regulation, which comprises a rotor, a stator, a water lubrication film layer and a magnetic field generating assembly coaxially arranged with the stator; the magnetic-water composite damping bearing with self-adaptive magnetic pole distribution further comprises a self-adaptive magnetic pole distribution unit, a distributed induction unit and a double-loop controller. The magnetic-water composite damping bearing has the advantages of strong self-adaptive bearing capacity, excellent wide-frequency damping and low-noise performance, high safety and redundancy, good engineering adaptability and the like.
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