Observability and identification of damage-healing hysteretic model

摘要：

　　Recent advances in the development of self-healing materials have highlighted the need for accurate modelling of the self-healing mechanism.To this end,the damage-healing hysteretic model is derived to describe the nonlinear behaviour of structures with self-healing material by introducing additional operators to the Bouc-Wen model.When the model is used as a representation of a real structure,it is important to precisely identify the model parameters to reduce the pertaining uncertainties.In this work,the nonlinear observability methods and the concept of non-smooth observability are utilized to analyze the observability of the model.The Unscented Kalman filter(UKF)and the recently suggested Discontinuous Unscented Kalman filter(DUKF)are implemented to identify the model,and the superior performance of the DUKF for parametric identification of non-smooth systems is highlighted.

作者: X.Shi M.N.Chatzis S.P.Triantafyllou M.S.Williams

作者单位: Department of Engineering Science,University of Oxford,Oxford,UK Department of Civil Engineering,University of Nottingham,Nottingham,UK

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 2215-2225

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）