Control Method to Single Degree or Three Degrees of Freedom for Hybrid Testing

하이브리드 실험을 위한 1 또는 3자유도에 대한 제어 기법

  • 이재진 (한국철도기술연구원, 고속철도연구본부) ;
  • 강대흥 (한국철도기술연구원, 고속철도연구본부) ;
  • 김성일 (특허청, 건설기술심사과)
  • Published : 2011.10.20


This paper will present hybrid tests to a one bay-one story steel frame structure under ground excitation. A structure used in this paper for hybrid test, to evaluate performance and behavior, is divided into two models; one is numerical model with one column element, and a truss or a beam element, the other is physical substructural model with one beam-column element. All tests considered one or three degrees of freedom to implement real-time hybrid test, and two control algorithms to control hardware are used; one using MATLAB/Simulink, the other using OpenSees, OpenFresco and xPCTarget. In addition, for real-time data communication between numerical and physical substructural models SCRAMNet was used. The results of hybrid tests were compared with one of numerical analysis of numerical model with fiber force-based beam-column elements using OpenSees. Real-time hybrid tests were implemented for the validation of control system with simple structure, and then it will be extended to hybrid test for higher nonlinear or complex structure later on.