{"title":"Damage Identification in Truss Structures Using Finite Element Model Updating and Imperialist Competitive Algorithm","authors":"H. Ghaffarzadeh, F. Raeisi","doi":"10.14525/JJCE.10.1.3542","DOIUrl":null,"url":null,"abstract":"In this paper, Finite Element Model (FEM) updating based on a new heuristic algorithmis proposed for damage identification in truss structures. This method updates the dynamic properties of the damaged and undamaged state of a structure to identify the presence, location and magnitude of the damage in structural members. Imperialist Competitive Algorithm (ICA), which is one of the most efficient heuristic methods, is used to minimize the objective function which is based on dynamic properties of the structure. Damage in structures is caused by the reduction in stiffness of specific members, especially in Young's modulus. The capability and efficiency of this method to identify damage using frequencies and mode shapes are demonstrated by means of several numerical examples. Results show the superiority and effectiveness of the proposed method.","PeriodicalId":51814,"journal":{"name":"Jordan Journal of Civil Engineering","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2016-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Jordan Journal of Civil Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14525/JJCE.10.1.3542","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 9
Abstract
In this paper, Finite Element Model (FEM) updating based on a new heuristic algorithmis proposed for damage identification in truss structures. This method updates the dynamic properties of the damaged and undamaged state of a structure to identify the presence, location and magnitude of the damage in structural members. Imperialist Competitive Algorithm (ICA), which is one of the most efficient heuristic methods, is used to minimize the objective function which is based on dynamic properties of the structure. Damage in structures is caused by the reduction in stiffness of specific members, especially in Young's modulus. The capability and efficiency of this method to identify damage using frequencies and mode shapes are demonstrated by means of several numerical examples. Results show the superiority and effectiveness of the proposed method.
期刊介绍:
I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.