Recursive Method in Modal Parameter Identification of Aerospace Structures under Non-Gaussian Noise
Joint Authors
Zhang, Qi
Yu, Lei
Zhang, Yong-li
Yuan, Meng-di
Liu, Rui-qing
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-05
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Operational modal parameter identification is a tough problem in aerospace engineering due to the complex mechanics environment, various noises, and limited computational resources.
In this paper, a novel, recursive, robust, and high-efficiency modal parameter identification approach is proposed for this issue.
The kernelized time-dependent autoregressive moving average (TARMA) model is adopted to model the nonstationary responses, a recursive estimator is established based on the maximum correntropy criterion, and sliding-window technique is applied to fix the computational complexity, which ensures the approach its estimation accuracy, robustness, and high efficiency.
Finally, steps of the identification procedure and model selection are presented.
An experimental scheme is proposed for validation, and the proposed approach is comparatively assessed against the classical recursive pseudo-linear regression TARMA method via Monte Carole tests of a time-varying experimental system.
The results of the comparative study demonstrate that the proposed method achieves similar estimation accuracy and higher computation efficiency under the Gaussian environment.
Moreover, a superior estimation accuracy and enhanced robustness are rendered under additive non-Gaussian impulsive noise.
American Psychological Association (APA)
Yu, Lei& Zhang, Yong-li& Yuan, Meng-di& Liu, Rui-qing& Zhang, Qi. 2020. Recursive Method in Modal Parameter Identification of Aerospace Structures under Non-Gaussian Noise. Shock and Vibration،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1209760
Modern Language Association (MLA)
Yu, Lei…[et al.]. Recursive Method in Modal Parameter Identification of Aerospace Structures under Non-Gaussian Noise. Shock and Vibration No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1209760
American Medical Association (AMA)
Yu, Lei& Zhang, Yong-li& Yuan, Meng-di& Liu, Rui-qing& Zhang, Qi. Recursive Method in Modal Parameter Identification of Aerospace Structures under Non-Gaussian Noise. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1209760
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209760