A framework for backbone experimental tracking : Piezoelectric actuators, stop-sine signal and Kalman filtering

被引：12

作者：

Peyret, Nicolas ^{[1
]}

Dion, Jean-Luc ^{[1
]}

Chevallier, Gael ^{[2
]}

机构：

[1] Lab QUARTZ EA7393 SUPMECA PARIS, 3 Rue Fernand Hainaut, F-93407 St Ouen, France

[2] CNRS UFC ENSMM UTBM, UMR 6174, FEMTO ST Inst, 24 Chemin Epitaphe, F-25000 Besancon, France

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2016年 / 78卷

关键词：

Piezoelectric excitation; Non-linear vibrations; Kalman filter; ENERGY-DISSIPATION; JOINTED STRUCTURES; FREQUENCY TRACKER; IDENTIFICATION; DESIGN; VIBRATION; SLIP;

D O I：

10.1016/j.ymssp.2015.09.020

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper deals with the use of piezoelectric patches for nonlinear dynamic identification. The patches are glued on the structure to identify amplitude-dependent damping and natural frequency; their positions are defined in order to perform the excitation concentrated on the first bending mode. Their locations on the structure allow to perform "stop sines" tests, as, unlike electrodynamic shakers, piezos are embedded on structures and do not modify the studied structure after the excitation signal is switched off Although, despite the piezo and the stop-sine, the signal is still modulated by other frequency components or polluted by random signals, a post processing with the extended Kalman Filter allows a very good determination of the modal damping and the natural frequency, especially when they depends on the free vibration amplitude. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：28 / 42

页数：15

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