Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
location: home > paper >
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Damage Detection Using the Extended Finite Element Method and An Enhanced Dolphin Echolocation Optim
DOI:
10.16355/j.cnki.issn1007-9432tyut.2018.04.013
Received:
Accepted:
| Corresponding author | Institute | |
| YAN Gang | State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics |
abstract:
A new method was proposed based on XFEM and EDEO algorithm to detect the position and size of damage.In order to identify the parameters of damages, EDEO algorithm was used for minimizing the difference between measurement data and the output of XFEM model.As to the DEO algorithm, a dynamic optimization mechanism by changing search scope was represented.Five processes, that is start search, fine search, translation search, backdate search and research, were used in EDEO algorithm.Compared with DEO algorithm, EDEO algorithm has higher efficiency and convergence rate.Numerical studies were carried out to demonstrate the reasonability and validity of the enhanced optimization and the damage identification method.
Keywords:
damage identification; the extended finite method; dolphin echolocation; improved algorithm;