二维磁流变液的动力学特性
发布时间：2018-10-26 15:49
【摘要】：采用朗之万分子动力学,数值模拟研究了二维磁流变液系统的动力学特性.模拟结果表明,磁场会使系统出现链状结构,且随着磁场强度的增加,短链增长,束链出现,与实验结果一致;最大静摩擦力随着磁场强度的增加而减小,但随着无序点钉扎强度的增加而增大.此外,随着外加驱动力的提高,运动系统的链状结构更加明显,束链增多,表明粒子之间的关联会随着外加驱动力的增加而增强.点钉扎无序会破链状结构,破坏程度随着点钉扎强度的增加而增强.
[Abstract]:The dynamic characteristics of two-dimensional magneto-rheological fluid system were studied numerically by Langevin molecular dynamics. The simulation results show that the magnetic field will make the system appear chain structure, and with the increase of magnetic field intensity, the short chain will increase and the beam chain will appear, which is consistent with the experimental results. The maximum static friction force decreases with the increase of magnetic field intensity, but increases with the increase of pinning strength of disordered points. In addition, with the increase of the external driving force, the chain structure of the motion system is more obvious, and the bundle chain increases, which indicates that the correlation between particles will increase with the increase of the external driving force. The chain structure will be broken by point pinning disorder, and the damage degree will increase with the increase of pinning strength.
【作者单位】： 郑州大学物理工程学院;
【基金】：河南省科技厅自然科学基金资助项目(112300410151) 河南省教育厅自然科学基金资助项目(12A140012;13A140658)
【分类号】：O37
[Abstract]:The dynamic characteristics of two-dimensional magneto-rheological fluid system were studied numerically by Langevin molecular dynamics. The simulation results show that the magnetic field will make the system appear chain structure, and with the increase of magnetic field intensity, the short chain will increase and the beam chain will appear, which is consistent with the experimental results. The maximum static friction force decreases with the increase of magnetic field intensity, but increases with the increase of pinning strength of disordered points. In addition, with the increase of the external driving force, the chain structure of the motion system is more obvious, and the bundle chain increases, which indicates that the correlation between particles will increase with the increase of the external driving force. The chain structure will be broken by point pinning disorder, and the damage degree will increase with the increase of pinning strength.
【作者单位】： 郑州大学物理工程学院;
【基金】：河南省科技厅自然科学基金资助项目(112300410151) 河南省教育厅自然科学基金资助项目(12A140012;13A140658)
【分类号】：O37
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