Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 60, Number 4, November25 2016 , pages 729-747 DOI: https://doi.org/10.12989/sem.2016.60.4.729 |
|
|
|
Structural damage identification using gravitational search algorithm |
||
J.K. Liu, Z.T. Wei, Z.R. Lu and Y.J. Ou
|
||
| Abstract | ||
| This study aims to present a novel optimization algorithm known as gravitational search algorithm (GSA) for structural damage detection. An objective function for damage detection is established based on structural vibration data in frequency domain, i.e., natural frequencies and mode shapes. The feasibility and efficiency of the GSA are testified on three different structures, i.e., a beam, a truss and a plate. Results show that the proposed strategy is efficient for determining the locations and the extents of structural damages using the first several modal data of the structure. Multiple damages cases in different types of structures are studied and good identification results can be obtained. The effect of measurement noise on the identification results is investigated. | ||
| Key Words | ||
| damage identification; gravitational search algorithm; vibration data; frequency domain; modal assurance criteria | ||
| Address | ||
| J.K. Liu, Z.T. Wei, Z.R. Lu: Department of Applied Mechanics, Sun Yat-sen University, Guangzhou, Guangdong Province, 510006, P.R. China Y.J. Ou: Department of Mechanics and Civil Engineering, Jinan University, Guangzhou, Guangdong 510632, China | ||