Operational Modal Identification of Time-Varying Structures via a Vector Multistage Recursive Approach in Hybrid Time and Frequency Domain

Joint Authors

Zhou, Si-Da
Liu, Li
Yang, Wu
Ma, Zhi-Sai

Source

Shock and Vibration

Issue

Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-13, 13 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2015-01-14

Country of Publication

Egypt

No. of Pages

13

Main Subjects

Civil Engineering

Abstract EN

Real-time estimation of modal parameters of time-varying structures can conduct an obvious contribution to some specific applications in structural dynamic area, such as health monitoring, damage detection, and vibration control; the recursive algorithm of modal parameter estimation supplies one of fundamentals for acquiring modal parameters in real-time.

This paper presents a vector multistage recursive method of modal parameter estimation for time-varying structures in hybrid time and frequency domain, including stages of recursive estimation of time-dependent power spectra, frozen-time modal parameter estimation, recursive modal validation, and continuous-time estimation of modal parameters.

An experimental example validates the proposed method finally.

American Psychological Association (APA)

Zhou, Si-Da& Liu, Li& Yang, Wu& Ma, Zhi-Sai. 2015. Operational Modal Identification of Time-Varying Structures via a Vector Multistage Recursive Approach in Hybrid Time and Frequency Domain. Shock and Vibration،Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1078103

Modern Language Association (MLA)

Zhou, Si-Da…[et al.]. Operational Modal Identification of Time-Varying Structures via a Vector Multistage Recursive Approach in Hybrid Time and Frequency Domain. Shock and Vibration No. 2015 (2015), pp.1-13.
https://search.emarefa.net/detail/BIM-1078103

American Medical Association (AMA)

Zhou, Si-Da& Liu, Li& Yang, Wu& Ma, Zhi-Sai. Operational Modal Identification of Time-Varying Structures via a Vector Multistage Recursive Approach in Hybrid Time and Frequency Domain. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1078103

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1078103