Research on Blade-Casing Rub-Impact Mechanism by Experiment and Simulation in Aeroengines
Joint Authors
Hong, Jie
Li, Tianrang
Liang, Zhichao
Zhang, Dayi
Ma, Yanhong
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-22
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Aeroengines pursue high performance, and compressing blade-casing clearance has become one of the main ways to improve turbomachinery efficiency.
Rub-impact faults occur frequently with clearance decreasing.
A high-speed rotor-support-casing test rig was set up, and the mechanism tests of light and heavy rub-impact were carried out.
A finite element model of the test rig was established, and the calculation results were in good agreement with the experimental results under both kinds of rub-impact conditions.
Based on the actual blade-casing structure model, the effects of the major physical parameters including imbalance and material characteristics were investigated.
During the rub-impact, the highest stress occurs at the blade tip first and then it is transmitted to the blade root.
Deformation on the impact blade tip generates easily with decreased yield strength, and stress concentration at the blade tip occurs obviously with weaker stiffness.
The agreement of the computation results with the experimental data indicates the method could be used to estimate rub-impact characteristics and is effective in design and analyses process.
American Psychological Association (APA)
Hong, Jie& Li, Tianrang& Liang, Zhichao& Zhang, Dayi& Ma, Yanhong. 2019. Research on Blade-Casing Rub-Impact Mechanism by Experiment and Simulation in Aeroengines. Shock and Vibration،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1211132
Modern Language Association (MLA)
Hong, Jie…[et al.]. Research on Blade-Casing Rub-Impact Mechanism by Experiment and Simulation in Aeroengines. Shock and Vibration No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1211132
American Medical Association (AMA)
Hong, Jie& Li, Tianrang& Liang, Zhichao& Zhang, Dayi& Ma, Yanhong. Research on Blade-Casing Rub-Impact Mechanism by Experiment and Simulation in Aeroengines. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1211132
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211132