Application of Random Vibration Amplitude Vector Method to Damage Identification of Grid Structure
Yalan Huang, Menghong Wang, Shiyuan Dong
Available Online June 2017.
- https://doi.org/10.2991/gcmce-17.2017.51How to use a DOI?
- grid structure; randomly excited; cross correlation function; damage identification
- 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.
- 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 -