| 李玉青, 罗一平，王莹，骆佼，仇俊.磁流变液沉降稳定性研究综述[J].轻工机械,2020,38(6):1-4 |
| 磁流变液沉降稳定性研究综述 |
| Research in Sedimentation Stability of Magnetorheological Fluids |
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| DOI：10.3969/j.issn.1005 2895.2020.06.001 |
| 中文关键词: 磁流变液 沉降稳定性 重力沉降理论 斯托克斯公式 |
| 英文关键词:MRF（magnetorheological fluid） sedimentation stability gravity sedimentation theory Stokes formula |
| 基金项目:上海市地方能力建设基金项目( 19030501100) 。 |
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| 摘要点击次数: 1567 |
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| 中文摘要: |
| 磁流变液(Magnetorheological Fluid，MRF)的沉降稳定性是磁流变领域的一个重要研究方面，同时也是反映磁流变液品质的一个重要指标，优良的稳定性对于磁流变液的保存和应用具有重要意义。笔者基于重力沉降理论导出了磁性颗粒的匀速沉降速度，结合基于斯托克斯公式的颗粒沉降速度公式，分析讨论了沉降稳定性的影响因素，包括颗粒直径和颗粒与基础液密度差等，并阐述了前人为提高其稳定性在颗粒、基础液及添加剂等方面所做的的工作；对目前磁流变液沉降稳定性常用的表征方法进行了系统论述。最后，笔者提出：探索更具代表性的表征方法并弄清楚其作用机理，以及探究更为有效的改善稳定性并以不牺牲其他性能为代价的方法将会成为日后研究工作的重点。 |
| 英文摘要: |
| The sedimentation stability of magnetorheological fluid (MRF) is an important research aspect in the field of magnetorheological science and an important indicator of the quality of MRF. Excellent stability is of great siginificance for the preservation and application of MRF. The uniform sedimentation velocity of magnetic particles was derived based on the gravity sedimentation theory. In combination with the Stokes formula, the influencing factors of sedimentation stability, including the particle diameter, the density difference between the particles and the basic fluid, were analyzed and discussed. The previous work to improve its stability in the aspect of particle, base liquid and additive were expounded and the current characterization methods commonly used for the sedimentation stability of MRF were systematically discussed. Finally, to explore more representative characterization methods and to understand their mechanism of action, and to explore more effective methods to improve stability at the cost of no other performance were proposed as the future research emphases. |
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