Application of Improved Multi-population Genetic Algorithm to Damage Identification of Soil-wall System
Liu Libiao,Zhang Yongxing and Chen Jiangong
DOI:10.11835/j.issn.1674-4764.2013.03.001
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2013,Pages 1-6
- Abstract
The method of damage identification in soil-wall system was studied; a new approach based on improved multi-population genetic algorithm (IMGA) was developed. First, the simplified dynamic-detection model of soil-wall system was established, meanwhile, the theoretical analysis of characteristic equations in soil-wall system was conducted when soil in damage status. The objective function based on characteristic equations was established. Then, the improvements of multi-population genetic algorithm, including the adoption of real-valued representation, adaptive cross operator and adaptive mutation operator, were conducted. Finally, the localization and quantification of the soil-wall system damage were performed by IMGA with and without the consideration of noise, respectively. The results indicate that damage location and damage extent can be detected efficiently, and anti-noise performance is better.