Research on Parameters Optimization of Rectangular Pole Teeth for Magnetic Fluid Seals  

作　　者：Lu Wang Zhili Zhang Decai Li Zhiqi Liang Nannan Di Liu Li 

机构地区：[1]School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044,China [2]State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Journal of Mechanical Engineering》2024年第6期365-381,共17页中国机械工程学报(英文版)

基　　金：Supported by National Natural Science Foundation of China(Grant No.51927810)。

摘　　要：To optimize the magnetic fluid seal design,the single-factor method is usually used to study the e ect of the rectangular pole teeth structure parameters on the sealing capacity of the magnetic fluid seal by current research,and the design formula is obtained.However,the supporting data is too few to make the results universalizable.In this paper,to obtain a wider range of applicable design formulas,a large number of modeling and simulation experiments are conducted using the co-simulation analysis experimental method of MATLAB and COMSOL.The influence of structure parameters of rectangular pole teeth and the coupling e ects of the structure parameters on the sealing capacity of sealing devices has been studied under di erent lengths of pole piece(L_(p))and seal gap(L_(g)).The results explain the influences of tooth height(L_(h)),tooth width(L_(t)),groove width(Ls),and their coupling e ects on the theoretical sealing capacity of magnetic fluid seals,and more widely applicable design formulas for pole teeth structure parameters are given.The design formulas can help to obtain good design parameters directly or reduce the optimization range when the magnetic fluid seals need to be optimized to meet the miniaturization and lightweightrequirements of magnetic fluid sealing devices or improve the sealing capacity under the same seal size.

关 键 词：Magnetic fluid SEAL Sealing capacity Parameter optimization 

分 类 号：TG1[金属学及工艺—金属学]