Purpose

Proposing a new type of water-lubricated thrust bearing meets the load-bearing requirements of high-power shaft-less rim driven thrusters.

Design/methodology/approach

The designs were tested by establishing a bearing thermal-fluid-magnetic comprehensive simulation model and developing bearing fluid film force and magnetic simulation. Lubrication performance tests were carried out on the bearing test rig.

Findings

The Halbach array of magnet blocks is able to reach the maximum magnetic force. The material of sheath can help increase the magnetism. The magnetism is able to reduce wear during low-speed and the start-stop phase, while the eddy current loss at high speeds will lead to a decrease in magnetic force. The experiment found that the bearing was more stable at low speeds and would not demagnetize due to the temperature rise, but it is necessary to pay attention to the running stability at high speeds to prevent rubbing and impact.

Originality/value

An innovative combination of hydrodynamic pressure and permanent magnetic repulsion was observed to form a magnetic-liquid double suspension bearing with large bearing capacity.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2020-0295

中文翻译：

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新型磁液双悬架固定垫推力轴承的承载能力

目的

提出一种新型的水润滑推力轴承，可以满足大功率无轴无缘轮辋推力器的承重要求。

设计/方法/方法

通过建立轴承热流体-磁综合仿真模型并开发轴承流体膜力和磁仿真来对设计进行测试。润滑性能测试是在轴承测试台上进行的。

发现

Halbach磁铁块阵列能够达到最大磁力。护套的材料可以帮助增加磁性。磁性能够减少低速和起停阶段的磨损，而高速时的涡流损耗将导致磁力降低。实验发现，轴承在低速时更稳定，不会因温度升高而退磁，但必须注意高速时的运行稳定性，以防止摩擦和撞击。

创意/价值

观察到流体动力压力和永磁排斥力的创新组合，形成了具有大承载能力的磁-液双悬浮轴承。

同行评审

本文的同行评审历史记录可在以下网址获得：https://publons.com/publon/10.1108/ILT-08-2020-0295