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首页> 外文期刊>IEEE Transactions on Magnetics >Numerical and Experimental Studies of a Novel Converging Stepped Ferrofluid Seal
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Numerical and Experimental Studies of a Novel Converging Stepped Ferrofluid Seal

机译：新型会聚阶梯式铁磁密封的数值与实验研究

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摘要

To improve the pressure capability of ordinary ferrofluid seals with a large gap, a novel type of converging stepped ferrofluid seals was proposed. The leakage positions and the magnetic field distributions in the sealing gaps of the new device are studied computationally by means of the finite-element method. The theoretical pressure capabilities of the seal are calculated based on a new expression introduced for the particular new seal geometry and for different sealing gaps. Computational results for effects of the radial and axial sealing gaps on the pressure capabilities of the seal are compared to the experimental results obtained from measurements employing a prototype of the proposed new seal. A good agreement between theoretical and experimental results is obtained. It is found that the pressure capabilities of the new seal depend on the height of the radial sealing gap and on the width of the axial sealing gap.
机译：为了提高具有较大间隙的普通铁磁流体密封件的耐压能力，提出了一种新型的会聚阶梯式铁磁流体密封件。通过有限元方法对新装置密封间隙中的泄漏位置和磁场分布进行了研究。密封件的理论压力能力是基于针对特定的新密封件几何形状和不同密封间隙引入的新表达式来计算的。将径向和轴向密封间隙对密封件的压力性能的影响的计算结果与使用所提出的新密封件原型进行测量获得的实验结果进行了比较。理论和实验结果之间取得了良好的一致性。已经发现，新的密封件的压力能力取决于径向密封间隙的高度和轴向密封间隙的宽度。

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