Vibration analysis model of fiber-metal laminated plates with microporous viscoelastic layer

被引：0

作者：

Jiang S. ^{[1
,2
]}

Wang Z. ^{[1
,2
]}

Yu C. ^{[1
,2
,3
]}

Ren X. ^{[1
,2
]}

Wang X. ^{[1
,2
]}

Han Q. ^{[1
,2
]}

Li H. ^{[1
,2
,4
]}

机构：

[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang

[2] Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education of China, Northeastern University, Shenyang

[3] State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang

[4] Key Laboratory of Impact Dynamics on Aero Engine, Shenyang

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 09期

关键词：

2D regular distributed micropores; Damping characteristics; Fiber-metal laminated plates (FMLP); Microporous viscoelastic layer; Vibration response;

D O I：

10.13465/j.cnki.jvs.2022.09.008

中图分类号：

学科分类号：

摘要：

Here, a vibration analysis model of a fiber-metal laminated plates (FMLP) with microporous viscoelastic layer was established. Based on the relation between elastic modulus and density of porous materials, the expression of elastic modulus of viscoelastic layer under 2D regular micropore distribution was derived. The classical laminated plate theory was used to represent the displacement field of metal layer and fiber layer. Meanwhile, to consider shear deformation of microporous viscoelastic layer, Reddy higher-order shear deformation theory was used to describe its displacement field. Further, based on Rayleigh-Ritz method, complex modulus method, strain energy method and the modal shape superposition method, the structural system's natural frequencies, damping characteristics and vibration responses in time domain and frequency domain under impulse excitation were solved. Finally, the self-fabricated fiber-metal laminated plates specimen bringing viscoelastic core with single layer micropores of diameter 0.5 mm and hole spacing 2 mm was taken as the study object to conduct test verification. The theoretical calculation results were compared with test ones. It was shown that the maximum calculation errors of the first 3 natural frequencies, damping ratios and response peak values are no more than 4.5%, 9.7% and 7.5%, respectively to verify the correctness of the proposed theoretical model. In addition, based on the established model, effects of variations of micropore geometric parameters on vibration characteristics of the structural system were also discussed. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：59 / 65

页数：6

共 24 条

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