Vibration Reliability Evaluation of Main Fan Spindle Bearings
Joint Authors
Chen, Lihai
Pang, Xiaoxu
Qiu, Ming
Ye, Liang
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-22
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Based on an analysis of failure causes, the axial force is the main reason why spindle bearings vibrate abnormally and cause frequent failures of the main fans in mines.
In this paper, the probability density function of the spindle bearing vibration was established through the bootstrap maximum entropy method, the Lagrangian multiplier and the empirical coefficient were introduced, and models of the upper- and lower-bound functions of the probability density and the true value function of the failure probability were established.
The true value function and interval estimation values of vibration reliability were obtained on the basis of maximum entropy.
The analysis results showed that the estimation true values of vibration decreased with an increase in the empirical coefficient.
When the empirical coefficient was less than 0.1, the estimated true value decreased sharply.
When the empirical coefficient was greater than 0.1, the vibration value decreased linearly with the empirical coefficient.
When the empirical coefficient was 0.1, the estimated true value was 0.85 mm/s2, which is consistent with the change in the actual vibration value.
Therefore, when the main fan is fault predicted, the vibration value should be 0.85 mm/s2 as the basis for judgment and then the theoretical basis for the fault diagnosis of the spindle bearing are provided.
American Psychological Association (APA)
Pang, Xiaoxu& Qiu, Ming& Ye, Liang& Chen, Lihai. 2019. Vibration Reliability Evaluation of Main Fan Spindle Bearings. Shock and Vibration،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211577
Modern Language Association (MLA)
Pang, Xiaoxu…[et al.]. Vibration Reliability Evaluation of Main Fan Spindle Bearings. Shock and Vibration No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1211577
American Medical Association (AMA)
Pang, Xiaoxu& Qiu, Ming& Ye, Liang& Chen, Lihai. Vibration Reliability Evaluation of Main Fan Spindle Bearings. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211577
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211577