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 。
The characteristic of transient yield surface in electrorheological clutch has been studied. It shows that the characteristics of clutch are dependent on the parameter β , which is in the yield stress formula of ERF, when extra electric field was applied suddenly. In the case of β >2, the yield surface generates from the inner cylinder. In the case of β <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.
基金
国家自然科学基金 (198340 2 0 )
清华大学基础研究基金 (JC2 0 0 0 0 37)资助项目~~
