Study on the Thermal Distribution Characteristics of High-Speed and Light-Load Rolling Bearing Considering Skidding

Li, Junning; Xue, Jiafan; Ma, Zhitao

doi:10.3390/app8091593

Cited by 18 publications

(10 citation statements)

References 24 publications

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“…This pattern could not be verified due to the construction of the stand. Li, Xue and Ma, on the other hand, stated that the maximum temperature is reached by the inner ring of the bearing [22].…”

Section: Testing Methodologymentioning

confidence: 99%

Stabilization of vibro-thermal processes during post-production testing of rolling bearings

Jakubek¹,

Barczewski²,

Rukat³

et al. 2019

Diagnostyka

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In the process of post-production testing of rolling bearings, quality classification and/or qualification of finished products as good and defective is performed. In view of mass production, bearing testing should be carried out within a short period of time. Vibroacoustic (VA) processes are widely used for post-production testing. Parameterization of bearing vibrations is largely determined by stabilization of lubrication conditions and VA processes, which to some extent depend on temperature. The article presents the results of temperature measurements carried out during the testing of a set of new tapered roller bearings. On their basis, an attempt was made to estimate the value of rms values of bearing vibration accelerations. This is based on the known relationships between the temperature and viscosity of the oil as well as the relationship between viscosity and acceleration of the bearing vibrations. The estimated acceleration values were verified experimentally. The time after which the temperature of a bearing is stabilized was also determined. The paper also shows the influence of a lubricant on these processes, mainly its kinematic viscosity.

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Section: Testing Methodologymentioning

confidence: 99%

Stabilization of vibro-thermal processes during post-production testing of rolling bearings

Jakubek¹,

Barczewski²,

Rukat³

et al. 2019

Diagnostyka

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“…Temperature is an important parameter in evaluating the running performance of the contact area between the roller and the inner ring [26]. During the test, the thermal infrared imager monitored the temperature of the contact area between the roller and the inner ring in real-time.…”

Section: Relationship Between Temperature Distribution and Skidding Dmentioning

confidence: 99%

Effect of Multiple Factors on Identification and Diagnosis of Skidding Damage in Rolling Bearings under Time-Varying Slip Conditions

Chen

Xue

et al. 2019

Applied Sciences

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Skidding damage mechanism of rolling bearings is not clear, due to the influence of various coupling factors. To solve this problem, it is important to identify and diagnose skidding damage and study the vibration characteristics in rolling bearings. Based on Fast Fourier Transform (FFT) and Discrete Wavelet Transform (DWT), vibration signals of rolling bearings are extracted and analyzed, and then the skidding damage of rolling bearings from multiple signals perspectives is identified. The relationship between the variation in the radial load, temperature, slip and the skidding damage of rolling bearings under time-varying slip conditions is analyzed comprehensively, and then the influence of different factors on bearing skidding damage is studied. The integrated analysis of the vibration, load, temperature, slip rate and other multivariate signals information shows the starting time of skidding damage. This research can be conducive to reduce vibration and prolong the life of rolling bearings.

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“…These studies indicate that a higher grease filling ratio, oil viscosity, as well as higher speed and load lead to a larger temperature gradient, as well as thermally induced stress inside the bearing contact pair [32]. Li et al [14] found that the friction heat generation from the inner and outer raceways and the bearing total power loss increased as the skidding degree increased, whereas the friction heat generation of the cage-guide ring interactions and ball-oil churning presented a reverse trend. In addition to the frictional effect of the ball-raceways, researchers have found that the degree of ball-cage pocket wear [33] significantly reduces the rotating stability of the cage, and this wear feature has a slight effect on bearing skidding.…”

Section: Introductionmentioning

confidence: 96%

“…A vibration signal-based method for predicting faulty rolling bearing skidding rate and enhancing fault features has been proposed [7,8], and the bearing performance degradation is evaluated accordingly. A 3-D nonlinear dynamic model coupled with a thermal expansion analysis to discuss the angular contact ball bearing skidding [4,5,10,14] and cage stability [9,15] are presented based on the skidding test [16], and the results show that the thrust load and preload can effectively eliminate skidding. In the bearing skidding test, the degree of skidding of the cage revolution can be obtained indirectly as the eddy current sensor [17] or high-speed photographic technology [18] is used to measure the whirling characteristics of the cage in the traditional method.…”

Section: Introductionmentioning

confidence: 99%

Dynamic, thermal, and vibrational analysis of ball bearings with over-skidding behavior

et al. 2022

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The term “over-skidding” indicates that the cage rotational speed ratio exceeds the theoretical value as ball purely rolls on the raceway. Different from the skidding phenomenon that occurs in low-load and high-speed bearing, over-skidding usually occurs in large-size angular contact bearings, and it is still difficult to suppress under high load conditions. The main forms of damage to the raceway by over-skidding are spinning and gyro slip. To further explore the vibration characteristics and thermal effects of this phenomenon, a set of over-skidding tests of an angular contact bearing with a bore diameter of 220 mm were conducted on an industrial-size test bench. Through the experiment, the influence of axial load, rotational speed, and lubrication conditions on the occurrence of over-skidding were determined. Based on a previous dynamics model, the heat generation and thermal network models were integrated in the present study to predict the over-skidding and its thermal behavior. The model was validated in terms of the measured degree of over-skidding and temperature rise. The results showed that the degree of over-skidding reaches up to 12% of the theoretical value, and the friction power loss of the ball-pocket accounts for 30% of the total power loss. The analysis of the vibration signal showed a strong correlation between the bearing vibration characteristics and over-skidding behavior, thereby providing a way to indirectly measure the degree of over-skidding.

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Study on the Thermal Distribution Characteristics of High-Speed and Light-Load Rolling Bearing Considering Skidding

Cited by 18 publications

References 24 publications

Stabilization of vibro-thermal processes during post-production testing of rolling bearings

Stabilization of vibro-thermal processes during post-production testing of rolling bearings

Effect of Multiple Factors on Identification and Diagnosis of Skidding Damage in Rolling Bearings under Time-Varying Slip Conditions

Dynamic, thermal, and vibrational analysis of ball bearings with over-skidding behavior

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