Dynamic response of laminated aluminum plate under falling hammer impact

被引：0

作者：

Zhou Y. ^{[1
,2
]}

Zhao Z. ^{[1
,2
]}

Ren J. ^{[1
,2
]}

Bian P. ^{[3
]}

Lu T. ^{[1
,2
]}

机构：

[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing

[2] Mi It Key Laboratory of Multifunctional Lightweight Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing

[3] Application Engineering Center, China National Heavy Duty Truck Group Co.，Ltd., Jinan

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 15期

关键词：

dynamic response; falling hammer impact; finite element simulation; laminated aluminum plate;

D O I：

10.13465/j.cnki.jvs.2022.15.030

中图分类号：

学科分类号：

摘要：

As a new type of anti-impact structure, laminated metal plates receive more and more attentions at home and abroad. Here, firstly, through falling hammer impact tests, deformation of laminated aluminum plate and its effects on acceleration of impact object were studied, and similarities and differences between laminated aluminum plate and single- layer aluminum plate with the same area density were compared. Then, the dynamic nonlinear finite element method was used to simulate falling hammer impact tests of laminated aluminum plate, and the simulation results agreed well with actual test ones. The results showed that under the same impact load, compared with single-layer plate, multi-layer laminated plate can greatly reduce peak acceleration，have better cushioning effect on hammer head and better protect it ； the maximum displacement of laminated plate at impact point is larger than that of single-layer plate with the same area density，and the difference gradually increases with increase in total thickness or number of laminations ； interlayer friction coefficient of laminated plate significantly affects its back convex displacement ； when friction coefficient is very small or very large, its back convex displacement decreases. © 2022 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：233 / 243and286

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