测试条件对液弹阻尼器动态特性的影响  

Influence of Test Conditions on Dynamic Characteristics of Fluid-Elastomeric Damper

作　　者：冯林兆 赖亮庆 陈高升 王文博 雷宇 苏正涛 FENG Linzhao;LAI Liangqing;CHEN Gaosheng;WANG Wenbo;LEI Yu;SU Zhengtao(BAIMTEC MATERIAL Co.,Ltd,Beijing 100095,China;Key Lab of Materials and Application Research for Vibration&Noise Reduction,AECC,Beijing 100095,China)

机构地区：[1]北京航空材料研究院股份有限公司,北京100095 [2]中国航发减振降噪材料及应用技术重点实验室,北京100095

出　　处：《橡胶工业》2024年第6期463-468,共6页China Rubber Industry

基　　金：中国航发创新专项资金项目(JK65211115)。

摘　　要：研究测试条件对液弹阻尼器动态特性的影响规律。结果表明:阻尼液耗散的能量占液弹阻尼器耗散能量的86.3%以上,随剪切振幅和剪切频率的增大,液弹阻尼器的耗能能力显著提高;液弹阻尼器的弹性刚度和阻尼刚度随剪切振幅的增大而减小,随剪切频率的增大而增大;当剪切振幅由0.2 mm增大到1.5 mm时,液弹阻尼器的阻尼刚度减小42.7%,当剪切频率由0.5 Hz增大到4 Hz时,液弹阻尼器的阻尼刚度由2 213 N·mm^(-1)增大到5 802 N·mm^(-1)。The influence of test conditions on the dynamic characteristics of the fluid-elastomeric damper was investigated.The test results showed that the energy loss of the damping fluid accounted for more than 86.3%of the energy loss of the fluid-elastomeric damper,and the energy loss capacity of the fluid-elastomeric damper increased significantly with the increase of the shear amplitude and frequency.The elastic stiffness and damping stiffness of the fluid-elastomeric damper decreased with the increase of the shear amplitude and increased with the increase of the shear frequency.When the shear amplitude increased from 0.2 mm to 1.5 mm,the damping stiffness of the fluid-elastomeric decreased by 42.7%.When the shear frequency increased from 0.5 Hz to 4 Hz,the damping stiffness of the fluid-elastomeric damper increased from 2213 N·mm^(-1) to 5802 N·mm^(-1).

关 键 词：液弹阻尼器 载荷-位移曲线 弹性刚度 阻尼刚度 损耗因子 

分 类 号：TQ336.42[化学工程—橡胶工业]