Proceedings of the 2017 Global Conference on Mechanics and Civil Engineering (GCMCE 2017)

Application of Random Vibration Amplitude Vector Method to Damage Identification of Grid Structure

Authors
Yalan Huang, Menghong Wang, Shiyuan Dong
Corresponding Author
Yalan Huang
Available Online June 2017.
DOI
https://doi.org/10.2991/gcmce-17.2017.51How to use a DOI?
Keywords
grid structure; randomly excited; cross correlation function; damage identification
Abstract
In this paper, a structural damage identification method, Cross-correlation Function Amplitude Vector (CorV), which based on stochastic process is proposed, it only need the acceleration response signal which obtained from the experimental test of the adjacent measurement points to calculate the cross-correlation between the adjacent measurement amplitude, and combined with certain rules into the CorV. By defining the degree of change K of CorV before and after structural damage, we can judge whether there is damage according to the value. In order to verify the feasibility of the method, a 5-spanning bolt-ball grid structure model was constructed. Using a running trolley to simulate the random excitation, and the truncating of the rod to simulate the complete damage, a single and a multi-point damage under random citation was deployed in the experiment. The experimental result indicates that the proposed method is effective for single and multi-point damage in the grid structure. It is also shown that the method has universal applicability for damage identification of the grid structure under random excitation.
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Proceedings
2017 Global Conference on Mechanics and Civil Engineering (GCMCE 2017)
Part of series
Advances in Engineering Research
Publication Date
June 2017
ISBN
978-94-6252-383-8
ISSN
2352-5401
DOI
https://doi.org/10.2991/gcmce-17.2017.51How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Yalan Huang
AU  - Menghong Wang
AU  - Shiyuan Dong
PY  - 2017/06
DA  - 2017/06
TI  - Application of Random Vibration Amplitude Vector Method to Damage Identification of Grid Structure
BT  - 2017 Global Conference on Mechanics and Civil Engineering (GCMCE 2017)
PB  - Atlantis Press
SP  - 290
EP  - 294
SN  - 2352-5401
UR  - https://doi.org/10.2991/gcmce-17.2017.51
DO  - https://doi.org/10.2991/gcmce-17.2017.51
ID  - Huang2017/06
ER  -