Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator
Joint Authors
Li, Xinxin
Mao, Hanling
Tang, Weili
Huang, Yingxiang
Mao, Hanying
Huang, Zhenfeng
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-06
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The pillar porcelain insulator is an important protection device that is related to the safety of the entire power grid.
Small damage of it may even cause a disaster.
Nonlinear output frequency response functions (NOFRFs) can well reflect the nonlinear characteristics of early damage in the system.
This paper uses the NOFRF entropy-based harmonic excitation detection method to detect the damage of the structure.
Its effect has been verified by using metal specimens.
Then, the pulse hammer detection and harmonic detection are carried out to detect the early-stage damage of the pillar porcelain insulator, and they achieve a good result, which verifies that the harmonic detection method can detect the early-stage damage in the pillar porcelain insulator as well.
In addition, the orthogonal test of the simulated breathing crack model is used to search the greatest influence of the parameters of crack on the detection index.
Through the orthogonal analysis, the results show that among the lengths, positions, and angles of the crack, the length of crack is the main factor that affects the detection index.
American Psychological Association (APA)
Mao, Hanling& Tang, Weili& Huang, Yingxiang& Mao, Hanying& Huang, Zhenfeng& Li, Xinxin. 2020. Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator. Shock and Vibration،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1209752
Modern Language Association (MLA)
Mao, Hanling…[et al.]. Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator. Shock and Vibration No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1209752
American Medical Association (AMA)
Mao, Hanling& Tang, Weili& Huang, Yingxiang& Mao, Hanying& Huang, Zhenfeng& Li, Xinxin. Research on NOFRF Entropy-Based Detection Method for Early Damage of Pillar Porcelain Insulator. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1209752
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209752