Open AccessExperimental Study of Transmission Tower Damage Detection Using Time Series Model
Author(s) -
Huiyong Guo,
Zhihua Wang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/711/1/012069
Subject(s) - transmission tower , tower , autoregressive model , stiffness , structural engineering , transmission (telecommunications) , series (stratigraphy) , computer science , engineering , mathematics , statistics , telecommunications , geology , paleontology
In order to solve damage detection problem of transmission tower, a damage index based on inter-storey stiffness and cepstral distance is presented. First, transmission tower model is established and the tower is divided into six sub-structures. Thus, we only need to identify the sub-structure location where the damaged rods are included. Then, autoregressive model is introduced, the cepstral distance between autoregressive models under damaged and undamaged states is given, and a damage index based on inter-storey stiffness and cepstral distance is proposed. Finally, the experiment of transmission tower model is conducted to evaluate the effectiveness of detecting the damaged layer of transmission tower. The analysis results of the experimental signals show that the damage index based on inter-storey stiffness and cepstral distance is an available method for damage detection of transmission tower, and the damage feature can be well extracted with the damage index.