Parametrically excited vibration control of a SMA beam under fluctuating temperature

被引：0

作者：

Wang L. ^{[1
,3
]}

Cui L. ^{[2
]}

Han Z. ^{[1
]}

Wu Y. ^{[3
]}

机构：

[1] College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan

[2] Center of Informatization Management and Development, Taiyuan University of Technology, Taiyuan

[3] State key Lab for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 07期

关键词：

Chaos; Nonlinear vibration control; Parametric excitation; Shape memory alloy (SMA) beam;

D O I：

10.13465/j.cnki.jvs.2022.07.017

中图分类号：

学科分类号：

摘要：

Here, the polynomial constitutive model of shape memory alloy (SMA) was introduced to describe thermodynamic behavior of materials, and the nonlinear dynamic governing equation of SMA beam under transverse periodic force disturbance was derived to study parametrically excited vibration control of SMA beam in fluctuating temperature field. Numerical analysis showed that temperature greatly affects elastic modulus and vibration characteristics of SMA beam; the maximum Lyapunov exponent method can be used to obtain the critical temperature, when temperature fluctuates near the critical temperature, parametrically excited vibration control of SMA beam can be realized. Finally, effects of external excitation amplitude and frequency on the critical temperature were discussed to expand practical application of the proposed method. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：135 / 138and181

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