{"title":"A new strategy for restraining seismic response of highway bridges","authors":"Ma Yong-quan, Qiu Hong-xing","doi":"10.1109/ICAETR.2014.7012934","DOIUrl":null,"url":null,"abstract":"In order to solve the difficult problem that traditional fuzzy logic control (FLC) strategy shows dissatisfactory control effect when facing different control objectives and load actions, this paper proposes a variable universe-based self-adaptive fuzzy control strategy (VAFC) theory. This strategy improves the performance of the FLC strategy by adjusting the universe of FLC input and output variables online, and designs the self-adaptive law of output universe based on Lyapunov function. This paper introduces modified clipped-optimal (MCO) into VAFC active control strategy and puts forward VAFC/MCO semi-active control strategy. In this paper, seismic responses of three-span continuous girder bridge under the control of VAFC/MCO, FLC/MCO and LQG/MCO are analyzed respectively, and the results show that the VAFC/MCO strategy has more significant seismic reduction effects than the FLC/MCO and LQG/MCO strategies do.","PeriodicalId":196504,"journal":{"name":"2014 International Conference on Advances in Engineering & Technology Research (ICAETR - 2014)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 International Conference on Advances in Engineering & Technology Research (ICAETR - 2014)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICAETR.2014.7012934","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In order to solve the difficult problem that traditional fuzzy logic control (FLC) strategy shows dissatisfactory control effect when facing different control objectives and load actions, this paper proposes a variable universe-based self-adaptive fuzzy control strategy (VAFC) theory. This strategy improves the performance of the FLC strategy by adjusting the universe of FLC input and output variables online, and designs the self-adaptive law of output universe based on Lyapunov function. This paper introduces modified clipped-optimal (MCO) into VAFC active control strategy and puts forward VAFC/MCO semi-active control strategy. In this paper, seismic responses of three-span continuous girder bridge under the control of VAFC/MCO, FLC/MCO and LQG/MCO are analyzed respectively, and the results show that the VAFC/MCO strategy has more significant seismic reduction effects than the FLC/MCO and LQG/MCO strategies do.