Impact response and energy absorption of metallic buffer with entangled wire mesh damper

作     者：Chao Zheng Jun Wu Mangong Zhang Xin Xue Chao Zheng;Jun Wu;Mangong Zhang;Xin Xue

作者机构：Institute of Metal Rubber&Vibration NoiseSchool of Mechanical Engineering and AutomationFuzhou UniversityFuzhou 350116China Wuhan Second Ship Design and Research InstituteWuhan 430205China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2024年第35卷第5期

页      面：137-150页

核心收录：

学科分类：08[工学] 081203[工学-计算机应用技术] 0806[工学-冶金工程] 0807[工学-动力工程及工程热物理] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0835[工学-软件工程] 0701[理学-数学] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the financial support by the National Natural Science Foundation of China(No.12272094) the Natural Science Foundation of Fujian Province of China(No.2022J01541) Natural Science Foundation of Hubei Province of China(No.2022CFB441) 

主　　题：Metallic buffer Hat-shaped EWMD Drop impact Energy absorption characteristics Mechanical behavior 

摘      要：An innovative metallic buffer consisting of series-connected hat-shaped entangled wire mesh damper(EWMD)and parallel springs are proposed in this work to enhance the reliability of engineering *** impact response and the energy dissipation mechanism of hat-shaped EWMD under different quasi-static compression deformations(2-7 mm)and impact heights(100-200 mm)are investigated using experimental and numerical *** results demonstrate distinct stages in the quasi-static mechanical characteristics of hat-shaped EWMD,including stiffness softening,negative stiffness,and stiffness *** loss factor gradually increases with increasing compression deformation before entering the stiffness hardening *** impact loads,the hat-shaped EWMD exhibits optimal impact energy absorption when it enters the negative stiffness stage(150 mm),resulting in the best impact isolation effect of metallic ***,the impact energy absorption significantly decreases when hat-shaped EWMD enters the stiffness hardening ***,quasi-static compression analysis after experiencing different impact loads reveals the disappearance of the negative stiffness ***,with increasing impact loads,the stiffness hardening point progressively shifts to an earlier stage.