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Fault Feature Analysis of a Cracked Gear Coupled Rotor System
Joint Authors
Wen, Bangchun
Ma, Hui
Song, Rongze
Pang, Xu
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-24
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
Considering the misalignment of gear root circle and base circle and accurate transition curve, an improved mesh stiffness model for healthy gear is proposed, and it is validated by comparison with the finite element method.
On the basis of the improved method, a mesh stiffness model for a cracked gear pair is built.
Then a finite element model of a cracked gear coupled rotor system in a one-stage reduction gear box is established.
The effects of crack depth, width, initial position, and crack propagation direction on gear mesh stiffness, fault features in time domain and frequency domain, and statistical indicators are investigated.
Moreover, fault features are also validated by experiment.
The results show that the improved mesh stiffness model is more accurate than the traditional mesh stiffness model.
When the tooth root crack appears, distinct impulses are found in time domain vibration responses, and sidebands appear in frequency domain.
Amplitudes of all the statistical indicators ascend gradually with the growth of crack depth and width, decrease with the increasing crack initial position angle, and firstly increase and then decrease with the growth of propagation direction angle.
American Psychological Association (APA)
Ma, Hui& Song, Rongze& Pang, Xu& Wen, Bangchun. 2014. Fault Feature Analysis of a Cracked Gear Coupled Rotor System. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-22.
https://search.emarefa.net/detail/BIM-501736
Modern Language Association (MLA)
Ma, Hui…[et al.]. Fault Feature Analysis of a Cracked Gear Coupled Rotor System. Mathematical Problems in Engineering No. 2014 (2014), pp.1-22.
https://search.emarefa.net/detail/BIM-501736
American Medical Association (AMA)
Ma, Hui& Song, Rongze& Pang, Xu& Wen, Bangchun. Fault Feature Analysis of a Cracked Gear Coupled Rotor System. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-22.
https://search.emarefa.net/detail/BIM-501736
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501736