摘要
分析和研究了电流变液 (ERF)在环型极板间流动的力学特性 ,建立了 ERF的阻尼力与控制电场之间关系的理论模型。在理论上将压降 ΔP分成流体粘性阻尼引起的和由控制电场引起的两部分 ;首次提出了屈服应力影响系数 k及其表达式 ,并提出了环型极板阻尼器压降的理论模型 ,该理论模型为 ERF可控阻尼器的力学计算及结构设计提供了理论基础 ;同时它也适用于磁流变液 (MRF)可控阻尼器的理论计算及结构设计 ,对
This paper focuses on analyzing and investigating the mechanical behavior of ERF semi active damper. Theoretical model is developed to describe the relationship between electric field and the resistance of ERF flowing through concentric annulus electrodes. In the analysis, the pressure drop along electrodes is assumed to be consist of two parts: one is related with viscosity and the other is with dynamic yield shear stress. The concept of yield stress influence factor is proposed in deriving the theoretical formula of calculating the pressure drop in the damper. The method suggested in this paper can also be utilised for the analysis of MRF damper.
出处
《振动工程学报》
EI
CSCD
北大核心
2002年第1期31-35,共5页
Journal of Vibration Engineering
关键词
电流变液
可控阻尼器
环形极板
理论模型
力学特性
electrorheological fluid
semi active damper
concentric annulus electrodes
theoretical modeling
