Experimental study on adaptability of full ceramic ball bearings under extreme conditions of cryogenics and heavy loads

Xia, Zhongxian; Wu, Yuhou; Ma, Tianbao; Bao, Zhigang; Tian, Junxing; Gao, Lei; Sun, Jian; Li, Songhua

doi:10.1016/j.triboint.2022.107849

Cited by 23 publications

(11 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To prevent the phenomenon of “locking” in the bearing service test at low temperatures, the clearance was designed as C3. The ceramic material used in the bearing was silicon nitride ceramic, and the powder was produced by the Ube Group in Japan and formed by a hot isostatic pressing sintering process (Xia et al , 2022). The test bearing and its geometry are shown in Figure 1, the structural parameters of the test bearing are shown in Table 1, and the physical properties of hot-formed silicon nitride ceramics are shown in Table 2.…”

Section: Service Performance Test Of Silicon Nitride Full Ceramic Bal...mentioning

confidence: 99%

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

Sun

Zhang

Xia

et al. 2023

ILT

Self Cite

View full text Add to dashboard Cite

Purpose To understand the service performance of full ceramic ball bearings under extreme working conditions and improve their service life, dynamic characteristic tests of full ceramic ball bearings under ultra-low temperature conditions were carried out by a low-temperature bearing life testing machine, and temperature rise and friction were measured under extreme low-temperature environment. Design/methodology/approach The heat-flow coupling model of bearing was established by CFD software, and the test results were further analyzed. Findings The results show that the temperature rise of the bearing is not obvious in the liquid nitrogen environment. With the increase of the chamber temperature, the lubrication state of the bearing changes, resulting in the temperature rise of the outer ring of the bearing. As the temperature of the test chamber increases, the friction force on the bearing increases first and then decreases under the action of multifactor coupling. Research limitations/implications The research results provide test data and theoretical basis for the application of all-ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions. Practical implications The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions. Social implications The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions. Originality/value The research results provide test data and theoretical basis for the application of full ceramic ball bearings in aerospace and other fields and have important significance for improving the service life of high-end equipment under extreme working conditions.

show abstract

Section: Service Performance Test Of Silicon Nitride Full Ceramic Bal...mentioning

confidence: 99%

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

Sun

Zhang

Xia

et al. 2023

ILT

Self Cite

View full text Add to dashboard Cite

show abstract

“…The problem of image edge information being eliminated is solved. and the Gamma function is constructed as shown in Equation (2).…”

Section: Extract Image Grayscalementioning

confidence: 99%

“…Silicon nitride ceramic bearing have excellent corrosion resistance, wear resistance, high-speed limit, small friction torque, and thermal shock resistance. [1][2][3] It is an important part of rotating mechanism [4] and is widely used in aerospace power systems and other high-precision special industries, [5] with a wide range of application prospects. [6] Silicon nitride ceramic bearings are brittle and prone to inevitable nano defect in the production DOI: 10.1002/smtd.202300396 process, and the nano defects cannot be fully detected.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Coupled 3d Morphological Reconstruction Approach for Surface Microcrack in Si₃n₄ Ceramic Bearing Roller Based on Adaptive Nano Feature Extraction & Multiscale Depth Fusion

Liao

et al. 2023

Small Methods

View full text Add to dashboard Cite

To extract the fuzzy contour features, tiny depth features of surface microcracks in the Si3N4 ceramic bearings roller. An adaptive nano feature extraction and multiscale deep fusion coupling method is proposed, to sufficiently reconstruct the three‐dimensional morphology characteristics of surface microcracks. Construct an adaptive nano feature extraction method, form the surface microcrack image scale space and the Gaussian difference pyramid function equation, realize the detection and matching of global feature points. The sparse point cloud is obtained. Through polar‐line correction, depth estimation, and fusion of feature points on the surface microcracks image, a multiscale depth fusion matching cost pixel function is established to realize a dense point cloud reconstruction of surface microcracks. The reconstruction results show that the highest value of the local convex surface reconstructed by the dense point cloud reaches 1183 nm, and the lowest local concave surface is accurate to 296 nm. Compared with the measurement results of the confocal platform, the relative error of the reconstruction result is 24.6%. The overall feature‐matching rate of the reconstruction reaches 93.3%. It provides a theoretical basis for the study of surface microcrack propagation mechanism and the prediction of bearing life.

show abstract

“…In addition, the low friction coefficient means that ceramic bearings do not require such frequent lubrication. In addition, they are characterized by a much lower coefficient related to thermal expansion [ 3 ]. Another innovative solution in the field of bearing technology is magnetic bearings, which can solve many restrictions and disadvantages of metallic, ceramic and even hybrid rolling rotor–bearing systems during an operational practice [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Magnetic Field of AMB on Eddy-Current Sensor Operation

Kurnyta-Mazurek

Kurnyta

2023

Sensors

View full text Add to dashboard Cite

This paper presents laboratory results on the influence of the magnetic field of an active magnetic bearing (AMB) on the eddy-current sensor operation. The magnetic suspension technology enables continuous diagnostics and monitoring of a rotary machine and eliminates drawbacks of classical bearing properties. The magnetic bearing system usually consists of two radial and one axial magnetic bearing. It is combined with a control unit, amplifiers and sensors for measuring the instantaneous position of the shaft. For this purpose, eddy-current sensors are frequently used. They operate in close proximity to the electromechanical actuators; therefore, the question arises whether the actuators do not interfere with the correct operation of these sensors. In the paper, the test rig and research plan prepared for that investigation are delivered. Measurement signals were registered from four control channels for different configurations of power supplies for system elements, e.g., with sensors and AMBs turned off, with sensors turn on and at normal work. Recorded time courses are presented and discussed in the paper. For the prepared test rig and AMB/eddy-current sensor configuration, no significant influence of the generated magnetic field from the support is found for the eddy-current sensor output.

show abstract

Experimental study on adaptability of full ceramic ball bearings under extreme conditions of cryogenics and heavy loads

Cited by 23 publications

References 36 publications

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

A Coupled 3d Morphological Reconstruction Approach for Surface Microcrack in Si₃n₄ Ceramic Bearing Roller Based on Adaptive Nano Feature Extraction & Multiscale Depth Fusion

The Influence of Magnetic Field of AMB on Eddy-Current Sensor Operation

Contact Info

Product

Resources

About

Experimental study on adaptability of full ceramic ball bearings under extreme conditions of cryogenics and heavy loads

Cited by 23 publications

References 36 publications

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

Research on the friction, lubrication and temperature rise characteristics of silicon nitride full ceramic ball bearing at low temperature

A Coupled 3d Morphological Reconstruction Approach for Surface Microcrack in Si3n4 Ceramic Bearing Roller Based on Adaptive Nano Feature Extraction & Multiscale Depth Fusion

The Influence of Magnetic Field of AMB on Eddy-Current Sensor Operation

Contact Info

Product

Resources

About

A Coupled 3d Morphological Reconstruction Approach for Surface Microcrack in Si₃n₄ Ceramic Bearing Roller Based on Adaptive Nano Feature Extraction & Multiscale Depth Fusion