A Novel Coupled StateInputParameter Identification Method for Linear Structural Systems
Joint Authors
Wan, Zhimin
Wang, Ting
Li, Lin
Xu, Zhichao
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-02-20
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In many engineering applications, unknown states, inputs, and parameters exist in the structures.
However, most methods require one or two of these variables to be known in order to identify the other(s).
Recently, the authors have proposed a method called EGDF for coupled state/input/parameter identification for nonlinear system in state space.
However, the EGDF method based solely on acceleration measurements is found to be unstable, which can cause the drift of the identified inputs and displacements.
Although some regularization methods can be adopted for solving the problem, they are not suitable for joint input-state identification in real time.
In this paper, a strategy of data fusion of displacement and acceleration measurements is used to avoid the low-frequency drift in the identified inputs and structural displacements for linear structural systems.
Two numerical examples about a plane truss and a single-stage isolation system are conducted to verify the effectiveness of the proposed modified EGDF algorithm.
American Psychological Association (APA)
Wan, Zhimin& Wang, Ting& Li, Lin& Xu, Zhichao. 2018. A Novel Coupled StateInputParameter Identification Method for Linear Structural Systems. Shock and Vibration،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215450
Modern Language Association (MLA)
Wan, Zhimin…[et al.]. A Novel Coupled StateInputParameter Identification Method for Linear Structural Systems. Shock and Vibration No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1215450
American Medical Association (AMA)
Wan, Zhimin& Wang, Ting& Li, Lin& Xu, Zhichao. A Novel Coupled StateInputParameter Identification Method for Linear Structural Systems. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1215450
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215450