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Real-Time Tracking of Time-Varying Cable Frequency Based on a Time-Domain Signal Processing Method

Authors :
Zhongqi Shi
Rumian Zhong
Nan Jin
Source :
Sustainability. 15:1700
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

In this paper, a time-domain signal processing method is proposed to extract the real-time time-varying cable frequency. The proposed conjugate-pair decomposition (CPD) method uses empirical mode decomposition (EMD) to obtain intrinsic mode functions (IMFs), and then the instantaneous frequency can be extracted by post-processing the conjugate-pair of IMFs. Several numerical simulations and a composite cable-stayed bridge experiment are used to validate the accuracy and capability of the proposed method for tracking time-varying cable frequency. Moreover, the proposed method may be further used to assess cable fatigue damage.

Details

ISSN :
20711050
Volume :
15
Database :
OpenAIRE
Journal :
Sustainability
Accession number :
edsair.doi...........89b8cbe351fcc9f8077c4374751cab1e
Full Text :
https://doi.org/10.3390/su15021700