Damping Identification in an Aeroelastic System with Structural Non-Linearities

摘要：

An energy-based method is proposed to identify damping parameters from time histories of responses to sets of single-frequency harmonic excitation. The method is intended to be practically applicable to real structures and is able to identify the value of viscous damping, Coulomb friction and eventually other forms of non-linear damping models in aeroelastic systems. The inputs required are simply the accelerometer signals and the forces applied. It will be shown that if the system is undergoing Limit Cycle Oscillations, no external force is required for the identification process.and not bold.

关键词： System identification aeroelasticity non-linear damping non-linear structure

作者: Gareth A. Vio G. Dimitriadis

作者单位: School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney,Sydney NSW 2006, A Department of Engineering, University of Liege, B52/3 Chemin des Chevreuils 1, 4000 Liege, Belgium

会议类型: 国际会议

会议名称: 2011年亚太航空航天技术学术会议(APISAT 2011)

会议地点: 澳大利亚

会议语种:英文

页码: 1-10

在线出版日期: 2011-02-28（万方平台首次上网日期，不代表论文的发表时间）