An Improved Quasi-Dynamic Analytical Method to Predict Skidding in Roller Bearings under Conditions of Extremely Light Loads and Whirling

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Izvoz citacije: ABNT
LI, Junning ;CHEN, Wei ;ZHANG, Libo ;WANG, Taofeng .
An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 62, n.2, p. 86-94, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/>. Date accessed: 23 may. 2024. 
doi:http://dx.doi.org/10.5545/sv-jme.2015.2848.
Li, J., Chen, W., Zhang, L., & Wang, T.
(2016).
An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling.
Strojniški vestnik - Journal of Mechanical Engineering, 62(2), 86-94.
doi:http://dx.doi.org/10.5545/sv-jme.2015.2848
@article{sv-jmesv-jme.2015.2848,
	author = {Junning  Li and Wei  Chen and Libo  Zhang and Taofeng  Wang},
	title = {An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {62},
	number = {2},
	year = {2016},
	keywords = {skid; whirl; roller bearing; squeeze film damper; EHL; operating parameters},
	abstract = {Slip often occurs in high-speed and light-load roller bearings (HSLLRBs) when the frictional drive force is inadequate to overcome the drag forces between the rolling elements and the raceway. Formerly, skidding analysis of HSLLRBs considering bearing whirling based on a simplified method using the Dowson-Higginson empirical model, although the analytical results of the cage slip fraction show significant discrepancies with the experimental data, as for extremely light radial loads. One of the main reasons is the inaccuracy of the evaluation of oil drag forces using the empirical equations. In this study, the elastohydrodynamic lubrication (EHL) method was adopted to calculate the oil film thickness and pressure distribution of HSLLRBs, so as to obtain more accurate oil drag forces. The cage speed and cage slip fraction were obtained by combining the whirl orbits, drag forces, load, kinematic equations and other related equations and then solved using the Newton-Raphson method. The skidding mechanism was investigated in terms of various operating parameters such as whirl orbit radii, radial load and viscosity. The results showed that the cage slip fraction and cage speed oscillate over time because of the whirl, which leads to an increase in the risk of bearing skidding damage. Under the extremely light load and high speed, the slip and influence of the whirl on bearing skidding increases as the whirl radius and radial load increases, while the viscosity shows a reverse trend. Therefore, in order to reduce slip and skidding damage, the whirl radius and radial load should be decreased suitably, while the viscosity should be increased moderately. A comparison between the calculated and experimental results shows that the proposed method is both feasible and valid.},
	issn = {0039-2480},	pages = {86-94},	doi = {10.5545/sv-jme.2015.2848},
	url = {https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/}
}
Li, J.,Chen, W.,Zhang, L.,Wang, T.
2016 June 62. An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 62:2
%A Li, Junning 
%A Chen, Wei 
%A Zhang, Libo 
%A Wang, Taofeng 
%D 2016
%T An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling
%B 2016
%9 skid; whirl; roller bearing; squeeze film damper; EHL; operating parameters
%! An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling
%K skid; whirl; roller bearing; squeeze film damper; EHL; operating parameters
%X Slip often occurs in high-speed and light-load roller bearings (HSLLRBs) when the frictional drive force is inadequate to overcome the drag forces between the rolling elements and the raceway. Formerly, skidding analysis of HSLLRBs considering bearing whirling based on a simplified method using the Dowson-Higginson empirical model, although the analytical results of the cage slip fraction show significant discrepancies with the experimental data, as for extremely light radial loads. One of the main reasons is the inaccuracy of the evaluation of oil drag forces using the empirical equations. In this study, the elastohydrodynamic lubrication (EHL) method was adopted to calculate the oil film thickness and pressure distribution of HSLLRBs, so as to obtain more accurate oil drag forces. The cage speed and cage slip fraction were obtained by combining the whirl orbits, drag forces, load, kinematic equations and other related equations and then solved using the Newton-Raphson method. The skidding mechanism was investigated in terms of various operating parameters such as whirl orbit radii, radial load and viscosity. The results showed that the cage slip fraction and cage speed oscillate over time because of the whirl, which leads to an increase in the risk of bearing skidding damage. Under the extremely light load and high speed, the slip and influence of the whirl on bearing skidding increases as the whirl radius and radial load increases, while the viscosity shows a reverse trend. Therefore, in order to reduce slip and skidding damage, the whirl radius and radial load should be decreased suitably, while the viscosity should be increased moderately. A comparison between the calculated and experimental results shows that the proposed method is both feasible and valid.
%U https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/
%0 Journal Article
%R 10.5545/sv-jme.2015.2848
%& 86
%P 9
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 62
%N 2
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Li, Junning, Wei  Chen, Libo  Zhang, & Taofeng  Wang.
"An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling." Strojniški vestnik - Journal of Mechanical Engineering [Online], 62.2 (2016): 86-94. Web.  23 May. 2024
TY  - JOUR
AU  - Li, Junning 
AU  - Chen, Wei 
AU  - Zhang, Libo 
AU  - Wang, Taofeng 
PY  - 2016
TI  - An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2848
KW  - skid; whirl; roller bearing; squeeze film damper; EHL; operating parameters
N2  - Slip often occurs in high-speed and light-load roller bearings (HSLLRBs) when the frictional drive force is inadequate to overcome the drag forces between the rolling elements and the raceway. Formerly, skidding analysis of HSLLRBs considering bearing whirling based on a simplified method using the Dowson-Higginson empirical model, although the analytical results of the cage slip fraction show significant discrepancies with the experimental data, as for extremely light radial loads. One of the main reasons is the inaccuracy of the evaluation of oil drag forces using the empirical equations. In this study, the elastohydrodynamic lubrication (EHL) method was adopted to calculate the oil film thickness and pressure distribution of HSLLRBs, so as to obtain more accurate oil drag forces. The cage speed and cage slip fraction were obtained by combining the whirl orbits, drag forces, load, kinematic equations and other related equations and then solved using the Newton-Raphson method. The skidding mechanism was investigated in terms of various operating parameters such as whirl orbit radii, radial load and viscosity. The results showed that the cage slip fraction and cage speed oscillate over time because of the whirl, which leads to an increase in the risk of bearing skidding damage. Under the extremely light load and high speed, the slip and influence of the whirl on bearing skidding increases as the whirl radius and radial load increases, while the viscosity shows a reverse trend. Therefore, in order to reduce slip and skidding damage, the whirl radius and radial load should be decreased suitably, while the viscosity should be increased moderately. A comparison between the calculated and experimental results shows that the proposed method is both feasible and valid.
UR  - https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/
@article{{sv-jme}{sv-jme.2015.2848},
	author = {Li, J., Chen, W., Zhang, L., Wang, T.},
	title = {An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {62},
	number = {2},
	year = {2016},
	doi = {10.5545/sv-jme.2015.2848},
	url = {https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/}
}
TY  - JOUR
AU  - Li, Junning 
AU  - Chen, Wei 
AU  - Zhang, Libo 
AU  - Wang, Taofeng 
PY  - 2018/06/27
TI  - An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 62, No 2 (2016): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2848
KW  - skid, whirl, roller bearing, squeeze film damper, EHL, operating parameters
N2  - Slip often occurs in high-speed and light-load roller bearings (HSLLRBs) when the frictional drive force is inadequate to overcome the drag forces between the rolling elements and the raceway. Formerly, skidding analysis of HSLLRBs considering bearing whirling based on a simplified method using the Dowson-Higginson empirical model, although the analytical results of the cage slip fraction show significant discrepancies with the experimental data, as for extremely light radial loads. One of the main reasons is the inaccuracy of the evaluation of oil drag forces using the empirical equations. In this study, the elastohydrodynamic lubrication (EHL) method was adopted to calculate the oil film thickness and pressure distribution of HSLLRBs, so as to obtain more accurate oil drag forces. The cage speed and cage slip fraction were obtained by combining the whirl orbits, drag forces, load, kinematic equations and other related equations and then solved using the Newton-Raphson method. The skidding mechanism was investigated in terms of various operating parameters such as whirl orbit radii, radial load and viscosity. The results showed that the cage slip fraction and cage speed oscillate over time because of the whirl, which leads to an increase in the risk of bearing skidding damage. Under the extremely light load and high speed, the slip and influence of the whirl on bearing skidding increases as the whirl radius and radial load increases, while the viscosity shows a reverse trend. Therefore, in order to reduce slip and skidding damage, the whirl radius and radial load should be decreased suitably, while the viscosity should be increased moderately. A comparison between the calculated and experimental results shows that the proposed method is both feasible and valid.
UR  - https://www.sv-jme.eu/sl/article/an-improved-quasi-dynamic-analytical-method-to-predict-skidding-in-roller-bearings-under-conditions-of-extremely-light-loads-and-whirling/
Li, Junning, Chen, Wei, Zhang, Libo, AND Wang, Taofeng.
"An Improved Quasi-Dynamic Analytical Method  to Predict Skidding in Roller Bearings  under Conditions of Extremely Light Loads and Whirling" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 62 Number 2 (27 June 2018)

Avtorji

Inštitucije

  • Xi’an Technological University, China 1
  • Xi’an Jiaotong University, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, China 2

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 62(2016)2, 86-94
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.

https://doi.org/10.5545/sv-jme.2015.2848

Slip often occurs in high-speed and light-load roller bearings (HSLLRBs) when the frictional drive force is inadequate to overcome the drag forces between the rolling elements and the raceway. Formerly, skidding analysis of HSLLRBs considering bearing whirling based on a simplified method using the Dowson-Higginson empirical model, although the analytical results of the cage slip fraction show significant discrepancies with the experimental data, as for extremely light radial loads. One of the main reasons is the inaccuracy of the evaluation of oil drag forces using the empirical equations. In this study, the elastohydrodynamic lubrication (EHL) method was adopted to calculate the oil film thickness and pressure distribution of HSLLRBs, so as to obtain more accurate oil drag forces. The cage speed and cage slip fraction were obtained by combining the whirl orbits, drag forces, load, kinematic equations and other related equations and then solved using the Newton-Raphson method. The skidding mechanism was investigated in terms of various operating parameters such as whirl orbit radii, radial load and viscosity. The results showed that the cage slip fraction and cage speed oscillate over time because of the whirl, which leads to an increase in the risk of bearing skidding damage. Under the extremely light load and high speed, the slip and influence of the whirl on bearing skidding increases as the whirl radius and radial load increases, while the viscosity shows a reverse trend. Therefore, in order to reduce slip and skidding damage, the whirl radius and radial load should be decreased suitably, while the viscosity should be increased moderately. A comparison between the calculated and experimental results shows that the proposed method is both feasible and valid.

skid; whirl; roller bearing; squeeze film damper; EHL; operating parameters