【摘要】 通过对玉米粉／玉米油电流变体（ＥＲ）的力学参数测试，研究了电场强度（Ｅ）、温度（Ｔ）和应变频率（ｆ）对ＥＲ储能模量（Ｇ′）、耗散模量（Ｇ＂）及粘度系数（η′、η＂）的影响。实验结果表明：Ｇ′随Ｅ和ｆ的增大而增大；Ｇ＂随Ｅ的增大而增大，而随ｆ的变化具有峰值特征，最大值发生在１５～３０Ｈｚ之间；η′、η＂随Ｅ和ｆ的变化与Ｇ′、Ｇ＂的变化趋势相同；而温度的升高均使Ｇ′、Ｇ＂、η′和η＂值降低。更多还原

【Abstract】 The main parameters (electric field E , temperature T and oscillation frequency f ) affecting the storage modulus (G′) , loss modulus (G") , and viscosities (η′, η") are discussed in this paper after measuring the moduli and viscosities of corn starch/corn oil ER Fluid. Both G′ and G" increase with increasing E. G′ increases with increasing oscillation frequency while G" rises nonlinearly, which has a peak in the range of 15～30 Hz. η′ and η" change with E in the same way as G′ and G" respectively. G′, G", η′ and η" decrease with rising temperature.更多还原