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Transient Characteristics of the Yield Surface of Electrorheological Clutch
Peng Jie, Zhu Keqin, Xi Baoshu
Department of Engineering Mechanics, Tsinghua University, Beijing 100084
Abstract:
The characteristic of transient yield surface in electrorheological clutch has been studied. It shows that the characteristics of clutch are dependent on the parameterβ, which is in the yield stress formula of ERF, when extra electric field was applied suddenly. In the case ofβ>2, the yield surface generates from the inner cylinder. In the case ofβ<2, the yield surface generates from the outer cylinder. The direct numerical results deriving from the Crank-Nicoson finite difference method with the regulation parameter model are also presented.
Key words:  Electrorheological clutch, Transient response, Yield surface
FundProject:国家自然科学基金(19834020)和清华大学基础研究基金(JC2000037)资助项目.
电流变离合器内屈服面瞬态特性研究
彭杰, 朱克勤, 席葆树
清华大学工程力学系北京 100084
摘要:
研究同心圆筒型电流变离合器内流动屈服面的瞬态响应规律.结果表明:在突加电场情况下,电流变液屈服应力公式中的参数β对流动屈服面的动态特性规律有重要影响.初始时刻,屈服面在筒壁生成,在向间隙内移动的过程中;若β>2.0,屈服面总是先产生于内筒外壁;若β<2.0,屈服面总是先产生于外筒内壁.
关键词:  电流变离合器  瞬态响应  屈服面
DOI:10.1088/1674-0068/14/5/513-517
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