Research on Dynamic Load Identification Based on Explicit Wilson-θ and Improved Regularization Algorithm
Joint Authors
Zhao, Chunyu
Fan, Yuchuan
Yu, Hongye
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-25
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In the research of dynamic load identification, the method of obtaining kernel function matrix is usually rather cumbersome.
To solve this problem, an explicit dynamic load identification algorithm based on the Wilson-θ (DLIAEW) method is proposed to easily obtain the kernel function matrix as long as the parameters of the system are known.
To aim at the ill-posed problem in the inverse problem, this paper improves the Tikhonov regularization, proposes an improved regularization algorithm (IRA), and introduces the U-curve method to determine the regularization parameters.
In the numeric simulation investigation of a four dofs vibrating system, effects of the sampling frequency and the noise level on the regularization parameters and the identification errors of impact and harmonic loads for the IRA are discussed in comparison with the Tikhonov regularization.
Finally, the experiments of a cantilever beam excited by impact and harmonic loads are carried out to verify the advantages of the IRA.
American Psychological Association (APA)
Fan, Yuchuan& Zhao, Chunyu& Yu, Hongye. 2019. Research on Dynamic Load Identification Based on Explicit Wilson-θ and Improved Regularization Algorithm. Shock and Vibration،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1211650
Modern Language Association (MLA)
Fan, Yuchuan…[et al.]. Research on Dynamic Load Identification Based on Explicit Wilson-θ and Improved Regularization Algorithm. Shock and Vibration No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1211650
American Medical Association (AMA)
Fan, Yuchuan& Zhao, Chunyu& Yu, Hongye. Research on Dynamic Load Identification Based on Explicit Wilson-θ and Improved Regularization Algorithm. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1211650
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211650