磁流体密封装置磁场强度有限元仿真分析及研究
吕涛涛，王玲*，陈应飞，殷国富
（四川大学 机械工程学院，四川 成都 610065）
摘要：磁流体密封装置中的密封间隙、极齿结构参数、极齿级数等对密封能力均有影响。本文首先分析磁流体密封原理，结合企业所给磁流体密封装置参数建立模型，应用Maxwell分析软件对模型进行分析计算，得出磁流体密封结构中磁场强度及其分布情况。分析讨论磁流体密封结构中极齿结构参数、极齿数量、密封间隙对磁场强度的影响，并总结其中的规律。分析结果表明：一定范围内，磁场强度随着极齿磁极角度数的增加先增大后减小；极齿级数越多，磁场强度越大；密封间隙越大，磁场强度越小。本文提供了使用Maxwell仿真分析软件进行磁场分析计算的参考。
关键词：磁流体；密封；磁场；Maxwell；仿真分析
中图分类号：TP391 文献标志码：A doi：10.3969/j.issn.1006-0316.2020.10.007
文章编号：1006－0316 (2020) 10－0041－07
Finite Element Simulation of Magnetic Field Intensity of Magnetic Fluid Seals
LV Taotao，WANG Ling，CHEN Yingfei，YIN Guofu
( School of Mechanical Engineering, Sichuan University, Chengdu 610065, China )
Abstract：The sealing gap, pole tooth structure parameter, the series of pole tooth and other factors have influence on sealing capacity. This paper firstly analyzes the principle of magnetic fluid sealing structure. Then a model is built combining the magnetic fluid seals parameter provided by the corporation. The model is analyzed with Maxwell. In this way we get the intensity and the distribution of magnetic field in magnetic fluid sealing structure. We also discuss the influence of sealing gap, pole tooth structure parameter, the number of pole tooth on the strength of magnetic field and summarize the rules of it. The analysis result indicates, within bounds, that the strength of magnetic field will firstly increase and then decrease by the increasing of pole angle, that the strength of magnetic field will increase by the increasing of the number of pole tooth, and that the strength of magnetic field will decrease by the increasing of sealing gap. This paper provides a reference to simulation analysis of the magnetic field with Maxwell.
Key words：magnetic fluid；sealing；magnetic field；Maxwell；simulated analysis
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收稿日期：2019－05－18
作者简介：吕涛涛（1994－），男，湖北黄冈人，硕士研究生，主要研究方向为产品数字化设计与制造；殷国富（1956－），男，四川西充人，教授、博士生导师，主要研究方向为产品数字化设计与制造。*通讯作者：王玲（1971－），女，四川成都人，博士，副教授，主要研究方向为产品数字化设计与制造，E-mail：wanglynn-01@163.com。
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