Simulation Study on Vibration Control of Variable Stiffness Structure with Shape Memory Alloy

被引：0
作者：
Hong J. [1 ,2 ]
Zheng H.-Q. [1 ]
Yang X. [1 ]
机构：
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] Collaborative Innovation Center of Advanced Aero-Engine, Beijing
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2018年 / 39卷 / 06期
关键词：
Constitutive model; Nonlinear vibration; Shape memory alloy; Simulation research; Variable stiffness vibration control;
D O I：
10.13675/j.cnki.tjjs.2018.06.021
中图分类号：
学科分类号：
摘要：
In order to realize the dynamic analysis of the complex structure with shape memory alloy (SMA)Ti50Ni41Cu9 and obtain the mechanism and control law of variable stiffness vibration abatement, the constitutive equation of SMA is established based on the Kelvin-Voigt model.And through compiling the material constitutive program with the ABAQUS, an effective dynamic simulation method is developed to realize the nonlinear steady state and transient dynamic simulation of the SMA structure under the influence of multiple parameters.The calculation results show that the macroscopic constitutive model of SMA can better reflect the dynamic characteristics of the material and the user-defined material mechanical behavior (UMAT) subroutine is in good agreement with the experimental data.The variable stiffness control can effectively reduce the steady-state response caused by constant-frequency excitation, such as a more than 40% decrease of amplitude for cantilever plate and the control rate of the SMA is independent of the final response, but it will cause the non-linear characteristic of the system and affect the time required for the control process.For the transient vibration response through the main frequency, the faster the temperature change rate, the smaller the peak response of the system because spontaneous frequency band induced by rapid temperature change has significant dispersion effect on vibration energy of the main frequency, to some extent, which can inhibit the maximum response peak. © 2018, Editorial Department of Journal of Propulsion Technology. All right reserved.
引用
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页码：1369 / 1378
页数：9
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