Improvement of the Static and Dynamic Characteristics of Water-Lubricated Bearings With Integrated Halbach Magnet Arrays

Wu, Weibin; Li, Shaonan; Yang, Xue; Shuai, Changgeng; Li, Zeyun; Wang, Xin

doi:10.1080/10402004.2023.2178988

Cited by 8 publications

(3 citation statements)

References 45 publications

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“…However, at low speeds, under heavy loads and starting and stopping conditions, the formation of a hydrodynamic film between the bearing and the shaft will be difficult, causing some areas to be under a boundary lubrication state or even experience dry friction. This will lead to a rapid deterioration in interface lubrication, which in turn causes abnormal wear of the bearing lining [7,8]. Over the past two decades, the surface microtexture has been proven to be one of the effective technological tools in tribology for improving lubrication, increasing load capacity, and reducing friction and wear [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Wear Resistance of Microstripe-Textured Water-Lubricated Materials Fabricated via Hot Embossing

Li,

Wu,

Yang

et al. 2024

Applied Sciences

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Water-lubricated material is the fundamental ingredient of a water-lubricated bearing (WLB), of which the friction and wear properties directly affect the working performance and service life of a WLB. We designed a micron-scale stripe texture and fabricated a negative microtexture mold by femtosecond laser etching. The microtextures were fabricated onto the surface of Thordon and polyurethane water-lubricated materials by a precision thermoforming machine. Tribological tests showed that the microstripe texture on water-lubricated materials had lower friction and wear properties than that on pristine surface materials. The results demonstrated that the presence of the microstripe texture effectively improved the friction and anti-wear properties of the water-lubricated materials. This study provides a new idea for the design and preparation of water-lubricated materials with good water-lubricating and anti-wear properties.

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Section: Introductionmentioning

confidence: 99%

Enhanced Wear Resistance of Microstripe-Textured Water-Lubricated Materials Fabricated via Hot Embossing

Li,

Wu,

Yang

et al. 2024

Applied Sciences

Self Cite

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“…[1][2][3] This will have an impact on the propulsion of the ship, introduce significant concealed dangers to the safety of the ship's navigation, cause an accident, and even result in financial losses. 4,5 Therefore, a real-time and accurate detection of bearing wear is necessary to assess the healthy state of sliding bearing and complete the surplus life prediction. Then, the seriously damaged bearings could be warned in advance and repaired timely to improve the safety factor of ship navigation.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the harsh maritime navigation environment, the bearing is inevitably worn under the action of external forces while working 1 – 3 This will have an impact on the propulsion of the ship, introduce significant concealed dangers to the safety of the ship’s navigation, cause an accident, and even result in financial losses 4 , 5 . Therefore, a real-time and accurate detection of bearing wear is necessary to assess the healthy state of sliding bearing and complete the surplus life prediction.…”

Section: Introductionmentioning

confidence: 99%

Real-time in-situ measurement method of marine sliding bearing wear based on chirped fiber Bragg grating

Liu,

Zhang,

Jing

et al. 2023

Opt. Eng.

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Marine sliding bearings re prone to wear in harsh environments. A real-time in-situ measurement method of sliding bearing wear, based on chirped fiber Bragg grating (CFBG), was proposed. The CFBG wear detection sensor and the corresponding demodulation system were designed and fabricated. The CFBG was sealed to ensure that wear synchronously with the sliding bearing. The relationship between the bandwidth and length of the CFBG was established and adopted to calculate the wear length. Meanwhile, a Savitzky-Golay filter was applied to denoising to improve the accuracy of the demodulation system. Experimental results showed that the sensor could achieve high precision real-time bearing detection and fault warning. With a chirp rate of 10 nm∕cm and a bandwidth resolution of 20 pm, a wear range >8 mm and an accuracy of 0.3 mm could be obtained.

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Dual nanoparticles effect on the frictional and vibrational dissipation behaviors of polymer‐based water‐lubricated bearing materials

Li,

Dong,

Yuan

et al. 2024

J of Applied Polymer Sci

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Marine water‐lubricated bearings have the advantages of environmental friendliness and long replacement cycle. However, when under the complex lubrication circumstance, the frictional and vibrational behaviors of water‐lubricated bearing always dissipate the mechanical energy output from the ship's diesel engine. Aiming at this problem and combining with previous research findings, in this paper, ceramic balls with similar mechanical properties to ship's main shaft were selected as the friction counterpart to simulate the operating conditions of marine water‐lubricated bearing. Meanwhile, dual nanoparticles of tungsten disulfide (WS2) and titanium dioxide (TiO2) were used to modify ultra‐high molecular weight polyethylene (UHMWPE) bearing material. The tribological and vibrational properties of the prepared composites were carefully investigated. The results showed that compared to pure UHMWPE, with the synergistic effect of 0.75 wt% WS2 and 0.9 wt% TiO2, the frictional and vibrational behaviors of the composites were reduced by 43.3% and 42.7%. Mechanical testing and microscopic characterization revealed the enhancement mechanism of these nanoparticles on UHMWPE. This study proposed a design strategy on marine water‐lubricated bearings for engineering application.

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Improvement of the Static and Dynamic Characteristics of Water-Lubricated Bearings With Integrated Halbach Magnet Arrays

Cited by 8 publications

References 45 publications

Enhanced Wear Resistance of Microstripe-Textured Water-Lubricated Materials Fabricated via Hot Embossing

Enhanced Wear Resistance of Microstripe-Textured Water-Lubricated Materials Fabricated via Hot Embossing

Real-time in-situ measurement method of marine sliding bearing wear based on chirped fiber Bragg grating

Dual nanoparticles effect on the frictional and vibrational dissipation behaviors of polymer‐based water‐lubricated bearing materials

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