Damping Identification in an Aeroelastic System with Structural Non-Linearities

机译：具有结构非线性的气动弹性系统中的阻尼识别

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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.

机译：提出了一种基于能量的方法，从对单频谐波激励的响应的时间历史中识别阻尼参数。该方法旨在实际应用于实际结构，并且能够识别粘性阻尼，库仑摩擦以及最终在气动弹性系统中的其他形式的非线性阻尼模型的值。所需的输入只是加速度计信号和所施加的力。将显示出，如果系统正在经历极限循环振荡，则识别过程不需要外力，并且也无需粗体。

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来源
《Third Asia-Pacific International Symposium on Aerospace Technology》|2011年|1-10|共10页
会议地点 Melbourne(AU)
作者
Gareth A. Vio; G. Dimitriadis;
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作者单位

School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney,Sydney NSW 2006, Australia;

Department of Engineering, University of Liege, B52/3 Chemin des Chevreuils 1, 4000 Liege, Belgium;

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会议组织
原文格式 PDF
正文语种 eng
中图分类航空;航天（宇宙航行）;
关键词
System identification; aeroelasticity; non-linear damping; non-linear structure;

机译：系统辨识气动弹性非线性阻尼非线性结构;

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Damping Identification in an Aeroelastic System with Structural Non-Linearities

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