Frequency Response of Shear Stress of Electrorheological Suspension.
Frequency Response of Shear Stress of Electrorheological Suspension.
复制标题
电流变悬浮液剪切应力的频率响应。
DOI：
10.1299/kikaic.64.2960
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Norihiko Tanaka
中科院分区：
文献类型：
--
作者：
T. Tsukiji;Norihiko Tanaka
研究了恒定剪切速率下电流变液剪切应力对外加电场正弦波变化的频率响应。本研究中使用的电流变液由悬浮在硅油中的纤维素组成。使用单极和双极波电场，以及恒定电场。单极波电场的电场幅值分别为0.1和0.4kV/mm，直流分量为0.5kV/mm。而双极波电场的电场幅值分别为0.4和0.9千伏/毫米。电场的频率在0.1~100赫兹之间变化。测量了剪应力的平均值、幅值和相角。研究了剪应力与电激励频率的关系。此外，还利用该数学模型将电场作用下的剪应力的非定常行为近似为一阶响应。根据计算结果和实验结果解释了电学变化对剪切应力的影响。
The frequency response of shear stress of an electrorheological (ER) fluid to sine wave changes in the applied electric field is investigated for constant shear rates. The ER fluid used in the present study consists of cellulose suspended in silicone oil. Unipolar and bipolar waves electric fields, and constant ones are used. Amplitudes of the electric fields are 0.1 and 0.4 kV/mm and DC component is 0.5 kV/mm for unipolar wave electric fields. On the other hand, amplitudes of the electric fields are 0.4 and 0.9 kV/mm for bipolar wave electric fields. The frequency of the electric fields is changed from 0.1 to 100 Hz. The average values, the amplitudes and the phase angles of the shear stress are measured. Dependence of the shear stress on electrical excitation frequency is investigated. Furthermore the mathematical model is used to approximate the unsteady behavior of the shear stress by a first-order response under application of the electric fields. The effect of electrical change on the shear stress is explained from the calculated and experimental results.