Prediction and improvement on anti-eccentric load characteristics of high-speed and heavy-type hydrostatic bearing

Yu, Xiaodong; Li, Shihao; Chen, Minmin; Wang, Songbai; Han, Zelin; Tang, Bangyao; Wang, Junfeng; Jiang, Hui; Jia, Wentao

doi:10.1007/s40430-022-03789-0

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Zhang et al [27] examined the tribological characteristics of the lubricating film on a hydrostatic turntable under a constant cutting speed, revealing a notable influence of the load on the performance of the oil film. Yu et al [28] scrutinized the anti-eccentric load characteristics of double rectangular cavity hydrostatic bearings, revealing that the overall lubrication performance under eccentric load was inferior to that under uniform load. Wang et al [29] studied the nonlinear support performance of a hydrostatic ram using a rectangular oil pad under cutting force and optimized its stiffness.…”

Section: Introductionmentioning

confidence: 99%

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Ma,

Liu,

Yang

et al. 2024

Mathematics

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This study aims to analyze the impact of uniform and eccentric load conditions on the performance of internal feedback hydrostatic thrust and journal bearing. Two distinct models are established: a three-degrees-of-freedom uniform load model and a five-degrees-of-freedom eccentric load model. The support stiffness, overturning stiffness, and flow rate for both thrust and journal bearings are calculated. Additionally, numerical analysis is conducted to examine the influence of oil film thickness, inlet pressure, and restrictor size on the operational characteristics of the bearings, revealing the interplay between an eccentric load and journal bearing speed. The validity of the theoretical algorithm is verified through finite element simulation. The research outcomes hold significant guiding implications for the design and application of internal feedback hydrostatic bearings.

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Section: Introductionmentioning

confidence: 99%

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Ma,

Liu,

Yang

et al. 2024

Mathematics

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“…The research showed that this method has good prediction performance under different working conditions. References [ 15 , 16 , 17 , 18 ] also predicted the wear, friction, oil film thickness, and lubrication of high-performance bearings through mathematical models. El Laithy et al [ 19 ] carried out detailed mechanical research through scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), and nanoindentation analysis, showing the evolution of ferrite grains (equiaxed grains and elongated grains) and the carbide structure in the network formed in the inner ring of the angular-contact ball bearings at different life stages.…”

Section: Introductionmentioning

confidence: 99%

Multidimensional Study on the Wear of High-Speed, High-Temperature, Heavy-Load Bearings

et al. 2023

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The friction and wear performance of high-performance bearings directly affects the accuracy and maneuverability of weapons and equipment. In this study, high-speed, high-temperature, and heavy-load durability experiments of weapon bearings were carried out, and their wear properties (i.e., surface wear, metamorphic layer, scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS), residual stress, and retained austenite) were analyzed in multiple dimensions. The results showed the following: (1) The experimental temperature of the serviced front-end bearing is always lower than that of the rear bearing. (2) The metamorphic layer of the serviced rear bearing (i.e., inner ring, outer ring, rolling body, and cage) > the metamorphic layer of the serviced front-end bearing > the metamorphic layer of the unserviced bearing. (3) The rolling body of the rear bearing at high experimental temperatures contains not only elemental O, but also elemental P and Sr. (4) In the EDS analysis of the rolling elements, with the migration from the “ball edge” to the “ball center”, the elemental C in the rolling elements of serviced or unserviced bearings decreases slowly, while the elemental Fe content increases slowly.

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Prediction and improvement on anti-eccentric load characteristics of high-speed and heavy-type hydrostatic bearing

Cited by 2 publications

References 11 publications

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Multidimensional Study on the Wear of High-Speed, High-Temperature, Heavy-Load Bearings

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