STRUCTURAL DAMAGE LOCALIZATION BASED ON THE COMBINED MDLAC AND GENETIC ALGORITHM
A damage localization method based on the Combined Multiple Damage Location Assurance Criterion (CMDLAC) and genetic algorithm (GA) is proposed. Based on the damage scalar model and combined with the eigen- sensitivity analysis, the CMDLAC based on the changes of frequencies and mode shapes between the undamaged and damaged states was proposed. The damage identification problem is transformed to the constrained optimization problem. Applying the genetic algorithm, the damage localization was realized through solving the objective function formulated by the CMDLAC. In the condition of the incompleteness of measured degrees of freedom (DOFs) and the measurement noise, the result of damage numerical simulation of truss model has verified the proposed method. It shows that the CMDLAC has the ability of localizing the damage and resisting noise and it is suitable to engineering practical maneuverability.
Tian-Li Huang Wei-Xin Ren Meng-Lin Lou
School of Civil Engineering and Architecture, Central South University, Changsha 410075, P.R. China School of Civil Engineering and Architecture, Central South University, Changsha 410075, P.R. China State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092
国际会议
长沙
英文
468-475
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）