Design and empirical evaluation of a magneto-rheological fluid-based seal with rectangular and trapezoidal pole head

IF 2.4 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Intelligent Material Systems and Structures Pub Date : 2024-03-18 DOI:10.1177/1045389x241232720

Vo Van Cuong, Le Hai Zy Zy, Seung-Bok Choi, Quoc Hung Nguyen, Vu Van Bo

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引用次数: 0

Abstract

The focus of this study is on the design and experimental validation of MRF self-sealing (also known as MRF seal) utilizing permanent magnets. The MRF seal has been built to readily replace traditional seal (lip-seal) for rotation shaft sealing. Following a review of studies on MRF seals, two configurations of MRF seal featuring an axial permanent magnet and two distinct pole head forms, rectangular and trapezoidal, are presented. The two MRF seals are then subjected to a magnetic analysis using the finite element method (ANSYS APDL). The Bingham plastic model of MRF and the assumption of linear velocity profile of MRF in the sealing gap are employed to construct mathematical models of crucial seal characteristics such as maximum static working pressure and frictional torque. The seals are optimized employing the optimization toolbox integrated in the ANSYS APDL to obtain the optimal geometric dimensions of the MRF seals. Finally, prototypes of the two MRF seals are fabricated and testing work is conducted to validate and compare them with the simulated results.

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带矩形和梯形磁极头的磁流变流体密封的设计和经验评估

本研究的重点是利用永磁体进行 MRF 自密封（又称 MRF 密封）的设计和实验验证。MRF 密封件可随时取代用于旋转轴密封的传统密封件（唇形密封件）。在回顾了有关 MRF 密封件的研究之后，介绍了两种 MRF 密封件的配置，其特点是轴向永久磁铁和两种不同的磁极头形式（矩形和梯形）。然后使用有限元方法（ANSYS APDL）对这两种 MRF 密封进行了磁性分析。利用 MRF 的宾汉塑性模型和 MRF 在密封间隙中的线性速度曲线假设，构建了最大静态工作压力和摩擦扭矩等关键密封特性的数学模型。利用 ANSYS APDL 中集成的优化工具箱对密封件进行优化，以获得 MRF 密封件的最佳几何尺寸。最后，制作了两个 MRF 密封件的原型，并进行了测试工作，以验证和比较它们与模拟结果。

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来源期刊

Journal of Intelligent Material Systems and Structures 工程技术-材料科学：综合

CiteScore

5.40

自引率

11.10%

发文量

126

审稿时长

4.7 months

期刊介绍： The Journal of Intelligent Materials Systems and Structures is an international peer-reviewed journal that publishes the highest quality original research reporting the results of experimental or theoretical work on any aspect of intelligent materials systems and/or structures research also called smart structure, smart materials, active materials, adaptive structures and adaptive materials.