Vibration Analysis of Driving-Point System with Uncertainties Using Polynomial Chaos Expansion
Joint Authors
Xiao, Bin
Zhou, Yu-long
Gao, Chao
Shi, Shuang-Xia
Sun, Ze-Xi
Song, Zong-biao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-28
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
A vibration transfer analysis method based on polynomial chaos expansion (PCE) is proposed in this study and is used to analyze the stochastic dynamic compliance of uncertain systems with the Gaussian distribution.
The random dynamic compliance is established by utilizing mode superposition on the system as the parameters of system uncertainties are regarded as input variables.
Considering the asymptotic probability density function of mode shape, the dynamic compliance is decomposed into the mean of mode shape and the subsystem represented as an orthogonal polynomial expansion.
Following this, the vibration transmission analysis approach is proposed for the random vibration.
Results of a numerical simulation carried out employing the PCE approach show that broad-band spectrum analysis is more effective than narrow-band spectrum analysis because the former jump of the dynamic compliance amplitude is weakened.
This proposed approach is valid and feasible, but since broad-band spectrum analysis loses some important information about the random vibration, both the aforementioned processes need to simultaneously be applied to analyze the random vibration transmission of low-medium frequency systems.
American Psychological Association (APA)
Xiao, Bin& Zhou, Yu-long& Gao, Chao& Shi, Shuang-Xia& Sun, Ze-Xi& Song, Zong-biao. 2020. Vibration Analysis of Driving-Point System with Uncertainties Using Polynomial Chaos Expansion. Shock and Vibration،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1210358
Modern Language Association (MLA)
Xiao, Bin…[et al.]. Vibration Analysis of Driving-Point System with Uncertainties Using Polynomial Chaos Expansion. Shock and Vibration No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1210358
American Medical Association (AMA)
Xiao, Bin& Zhou, Yu-long& Gao, Chao& Shi, Shuang-Xia& Sun, Ze-Xi& Song, Zong-biao. Vibration Analysis of Driving-Point System with Uncertainties Using Polynomial Chaos Expansion. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1210358
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210358