Effects of material parameters on dynamic characteristics of fluid-elastomeric damper

被引：0

作者：

Feng L. ^{[1
,2
]}

Kang L. ^{[3
]}

Lai L. ^{[1
,2
]}

Chen G. ^{[1
,2
]}

Zhao X. ^{[1
,2
]}

Su Z. ^{[2
]}

Liu J. ^{[1
,2
]}

机构：

[1] Beijing Institute of Aeronautical Materials Co., Ltd., Beijing

[2] Key Lab of Materials, Application Research for Vibration & Noise Reduction, AECC, Beijng

[3] Unit 32381, the Chinese People' s Liberation Army, Beijng

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 03期

关键词：

damping stiffness; elastic stiffness; fluid-elastomeric damper; load-displacement curve; loss factor;

D O I：

10.13465/j.cnki.jvs.2024.03.001

中图分类号：

学科分类号：

摘要：

Here, to investigate effects of material performance parameters on dynamic characteristics of fluid-elastomeric damper, electro-hydraulic servo dynamic testing machine was used to study changes of load-displacement curve, elastic stiffness, damping stiffness and loss factor of fluid-elastomeric damper with rubber hardness and damping liquid viscosity. The test results showed that over 9 1 . 5 % of elastic stiffness of fluid-elastomeric damper is provided by rubber part, and elastic stiffness increases with increase in rubber hardness; more than 84. 8% of damping stiffness of fluid-elastomeric damper is provided by damping fluid, damping stiffness and loss factor increase with increase in damping fluid viscosity and decrease with increase in shear amplitude; the larger the damping fluid viscosity, the larger the decrease in damping stiffness and loss factor; when damping fluid viscosity increases from 2 000 mm / s to 10 000 mm / s, damping stiffness of fluid-elastomeric damper increases from 2 420 N/mm to 5 163 N / m m; when shear amplitude increases from 0. 2 mm to 1. 5 mm, damping stiffness decreases by 18. 5 % and 40. 1%, respectively; the above conclusions can provide a basis for choosing materials for fluid-elastomeric damper. © 2024 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：1 / 6

页数：5

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