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A Fully Automated and Noncontact Method for Force Identification of Cables Based on Microwave Radar

A Fully Automated and Noncontact Method for Force Identification of Cables Based on Microwave Radar
Auteur(s): , ORCID, , ,
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Présenté pendant IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022, publié dans , pp. 1527-1536
DOI: 10.2749/nanjing.2022.1527
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This study proposes a full-automated and non-contact cable force identification method based on microwave radar. Several algorithms have been presented for data processing. The time domain data rec...
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Détails bibliographiques

Auteur(s): (Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
ORCID (Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
(Department of Bridge Engineering, Tongji University, Shanghai 200092, China)
(Liuzhou OVM Machinery Ltd., Liuzhou 545006, China)
(China Academy of Railway Sciences Corporation Limited, Beijing 100081, China)
(China Academy of Railway Sciences Corporation Limited, Beijing 100081, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022
Publié dans:
Page(s): 1527-1536 Nombre total de pages (du PDF): 10
Page(s): 1527-1536
Nombre total de pages (du PDF): 10
DOI: 10.2749/nanjing.2022.1527
Abstrait:

This study proposes a full-automated and non-contact cable force identification method based on microwave radar. Several algorithms have been presented for data processing. The time domain data records by microwave radar is firstly transformed into frequency domain by Fast Fourier Transform. Then, the eigen-frequencies are simultaneously identified with the proposed fast sieve method. Subsequently, a novel algorithm using hash map and weighted voting is applied to estimate orders of eigen-frequencies. Finally, the average ratio between eigen-frequencies and their orders is estimated by weighted least square method, and then the cable force is calculated by using cable frequency formulas. The method has been validated by field tests.
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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