Improving Delay-Margin of Noncollocated Vibration Control of Piezo-Actuated Flexible Beams via a Fractional-Order Controller

被引：8

作者：

Sangpet, Teerawat ^{[1
]}

Kuntanapreeda, Suwat ^{[1
]}

Schmidt, Ruediger ^{[2
]}

机构：

[1] King Mongkuts Univ Technol North Bangkok, Dept Mech & Aerosp Engn, Bangkok 10800, Thailand

[2] Rhein Westfal TH Aachen, Inst Gen Mech, D-52056 Aachen, Germany

来源：

SHOCK AND VIBRATION | 2014年 / 2014卷

关键词：

Vibration control;

D O I：

10.1155/2014/809173

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Noncollocated control of flexible structures results in nonminimum-phase systems because the separation between the actuator and the sensor creates an input-output delay. The delay can deteriorate stability of closed-loop systems. This paper presents a simple approach to improve the delay-margin of the noncollocated vibration control of piezo-actuated flexible beams using a fractionalorder controller. Results of real life experiments illustrate efficiency of the controller and show that the fractional-order controller has better stability robustness than the integer-order controller.

引用

页数：8

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