Time-Varying Wind Load Identification Based on Minimum-Variance Unbiased Estimation
Joint Authors
Liu, Hongjun
Xue, Huili
Lin, Kun
Luo, Yin
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-10-12
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
A minimum-variance unbiased estimation method is developed to identify the time-varying wind load from measured responses.
The formula derivation of recursive identification equations is obtained in state space.
The new approach can simultaneously estimate the entire wind load and the unknown structural responses only with limited measurement of structural acceleration response.
The fluctuating wind speed process is investigated by the autoregressive (AR) model method in time series analysis.
The accuracy and feasibility of the inverse approach are numerically investigated by identifying the wind load on a twenty-story shear building structure.
The influences of the number and location of accelerometers are examined and discussed.
In order to study the stability of the proposed method, the effects of the errors in crucial factors such as natural frequency and damping ratio are discussed through detailed parametric analysis.
It can be found from the identification results that the proposed method can identify the wind load from limited measurement of acceleration responses with good accuracy and stability, indicating that it is an effective approach for estimating wind load on building structures.
American Psychological Association (APA)
Xue, Huili& Lin, Kun& Luo, Yin& Liu, Hongjun. 2017. Time-Varying Wind Load Identification Based on Minimum-Variance Unbiased Estimation. Shock and Vibration،Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1205176
Modern Language Association (MLA)
Xue, Huili…[et al.]. Time-Varying Wind Load Identification Based on Minimum-Variance Unbiased Estimation. Shock and Vibration No. 2017 (2017), pp.1-15.
https://search.emarefa.net/detail/BIM-1205176
American Medical Association (AMA)
Xue, Huili& Lin, Kun& Luo, Yin& Liu, Hongjun. Time-Varying Wind Load Identification Based on Minimum-Variance Unbiased Estimation. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1205176
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205176