CAJ | 학술논문

为了研究磁流变液在圆筒剪切模型中的流变特性，建立了以圆筒剪切模型为基础的实验装置。首先，通过理论分析得到了磁流变液在圆筒剪切模型中的层间传力模型，切应力和剪切速率测量方法。其次，通过ANSYS对圆筒剪切模型中磁流变液的磁场强度进行了仿真模拟，并以实验测量验证，得到了磁场强度分布。最后以理论分析为基础，通过实验测量得到了切应力与剪切速率和磁场强度之间的关系，并得到了拟合公式。实验表明，磁流变液流切应力与磁场强度的比值为0.162kPa/mT，与剪切度率的比值为0.00026kPa·s，磁场强度的增强能够较大地提升磁流变液的工作能力。
위료연구자류변액재원통전절모형중적류변특성，건립료이원통전절모형위기출적실험장치。수선，통과이론분석득도료자류변액재원통전절모형중적층간전력모형，절응력화전절속솔측량방법。기차，통과ANSYS대원통전절모형중자류변액적자장강도진행료방진모의，병이실험측량험증，득도료자장강도분포。최후이이론분석위기출，통과실험측량득도료절응력여전절속솔화자장강도지간적관계，병득도료의합공식。실험표명，자류변액류절응력여자장강도적비치위0.162kPa/mT，여전절도솔적비치위0.00026kPa·s，자장강도적증강능구교대지제승자류변액적공작능력。
In order to study the rheological properties of the magnetorheological fluid in shear cylinder model, the experimental device for tact shear model-based has been established. Firstly, the interlayer transfer model, the shear stress and the rate of shearing strain measurement method are derived by theoretical analysis. Secondly, by simulating the MRF magnetic field of cylinder shear strength model with ANSYS, it has been proved that with the model the magnetic field intensity distribution can be obtained. Finally, according to the theoretical analysis, the relationship between shear stress and the rate of shearing strain, shear stress and magnetic field strength are measured, which induces the fitting formula. Experiments show that the magnetorheological fluid shear stress is 0.162kPa/mT times the magnetic field and shear velocity gradient 0.00026 kPa·s fold. The conclusion is drawn that increasing the magnetic field strength can greatly enhance the operational ability of MRF.