Analytical Modeling and Optimization of Logarithmic Sprag Clutch Considering Profile Modification
Joint Authors
Liu, Ming
Zhao, Yongqiang
Huang, Chuang
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-11-07
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A new analytical model of a logarithmic sprag clutch considering profile modification is proposed to reflect the effect of profile parameters on the dynamic contact pressure distribution during the engagement, especially the edge stress of a sprag roller.
In the model, a nonlinear iteration method of normal force including the logarithmic profile model with three parameters and structural deformations of races is given.
The alternate friction model considering stationary and rate-dependency friction is formulated and applied in the contacts between the sprag rollers and races.
Then, the kriging model describing the relationship between the maximum contact stress throughout the engagement and the profile parameters is established and validated, and the kriging-based optimization of the design parameters is proposed using genetic algorithms.
In subsequent analysis, based on the presented analytical model and optimization process, the maximum contact stress throughout the engagement can decrease greatly through optimizing the profile parameters.
Therefore, the results of the present paper could aid in the design of the logarithmic sprag clutch and help avoid end crush failure and low cycle fatigue of the sprag roller.
American Psychological Association (APA)
Huang, Chuang& Zhao, Yongqiang& Liu, Ming. 2018. Analytical Modeling and Optimization of Logarithmic Sprag Clutch Considering Profile Modification. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215242
Modern Language Association (MLA)
Huang, Chuang…[et al.]. Analytical Modeling and Optimization of Logarithmic Sprag Clutch Considering Profile Modification. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215242
American Medical Association (AMA)
Huang, Chuang& Zhao, Yongqiang& Liu, Ming. Analytical Modeling and Optimization of Logarithmic Sprag Clutch Considering Profile Modification. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215242
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215242