A Vibration Reliability Analysis Method for the Uncertain Space Beam Structure
Joint Authors
Mo, Yanyu
Guo, Shuxiang
Tang, Cheng
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-10
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Considering that uncertainty is inherent and unavoidable in engineering practice and the available information about the uncertain parameters is always not sufficient, the paper tries to carry out the nonprobabilistic vibration reliability analysis so as to avoid resonance on uncertain structure with bounded parameters.
The input uncertain-but-bounded parameters are treated as interval variables, and an interval model is adopted to describe bounded uncertainties.
Then a theory of nonprobabilistic reliability is introduced, in which the dimensionless nonprobabilistic reliability index and system reliability index are defined.
In order to investigate the resonance failure with reliability method, the resonance failure domains are stated according to the relationships between the natural frequencies and the excitation frequencies.
Then the uncertain structure is modeled as a series system and a system reliability index is proposed to evaluate the safety of the structure.
The paper also takes a frequency analysis on the uncertain space beam structure to get the resonance failure modes.
A frequency analysis method based on the monotonicity discriminant of the frequency sensitivity is presented.
Then an optimization algorithm is introduced to verify the validity of the former frequency analysis method.
Two examples are provided to illustrate the effectiveness and feasibility of the presented method.
American Psychological Association (APA)
Mo, Yanyu& Guo, Shuxiang& Tang, Cheng. 2016. A Vibration Reliability Analysis Method for the Uncertain Space Beam Structure. Shock and Vibration،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1120048
Modern Language Association (MLA)
Mo, Yanyu…[et al.]. A Vibration Reliability Analysis Method for the Uncertain Space Beam Structure. Shock and Vibration No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1120048
American Medical Association (AMA)
Mo, Yanyu& Guo, Shuxiang& Tang, Cheng. A Vibration Reliability Analysis Method for the Uncertain Space Beam Structure. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1120048
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120048