Three-step damage identification method based on dynamic characteristics
作者： Guoshuai Sun , Chunguang Liu , Shibo Zhang , Ertong Hao
DOI: 10.1007/S12209-014-2115-Z
关键词: Parameter identification problem 、 Identification (information) 、 Stiffness 、 Engineering 、 Modal 、 Cantilever 、 Reliability (statistics) 、 Earthquake shaking table 、 Curvature 、 Structural engineering
摘要: A three-step damage identification method based on dynamic characteristics is proposed to improve the structure reliability and security avoid serious accident. In method, frequency difference of modal curvature (DMC) are used as indexes. Firstly, detection occurrence addressed by or square change. Then location inside measured DMC. Finally, with stiffness reduction rate a factor, amount estimated optimization algorithm. The has been validated conducting simulation cantilever beam shaking table test submerged bridge. results show that in this paper can effectively solve problem theory engineering practice.
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