Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement
Joint Authors
Wan, Zhimin
He, Shuilong
Zheng, Weiguang
Wang, Ting
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-18
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Structural load and parameter identification are the essential contents in the field of structural dynamics, and some studies pay attention to the coupled recognition of uncertain structure parameters as well as unacquainted loads.
Gillijns and De Moor presented the Kalman-type filter, which was used in the work for coupled identification as the unabbreviated form of GDF.
However, it has been demonstrated that it is unstable for the extended GDF (EGDF) method, drifting in the identified unacquainted loads as well as displacement, just like most previous identification methods based on the least-square algorithm.
In order to deal with this unstable issue, this paper applied the dummy measurements of displacements on a position level and modifies the EGDF algorithm using the information integration method about the accelerated measurements with dummy measurements.
Numerical example of a truss is used for validating the applicability of the method in the work, and an influence of covariance matrices in dummy displacements is also considered.
American Psychological Association (APA)
Wang, Ting& Wan, Zhimin& Zheng, Weiguang& He, Shuilong. 2020. Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement. Shock and Vibration،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1213165
Modern Language Association (MLA)
Wang, Ting…[et al.]. Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement. Shock and Vibration No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1213165
American Medical Association (AMA)
Wang, Ting& Wan, Zhimin& Zheng, Weiguang& He, Shuilong. Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1213165
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1213165