纳米磁性流体密封性能的有限元分析  

Finite element analysis of the sealing capability of nanometer magnetic fluid seal

作　　者：周三平[1] 樊玉光[1] 

机构地区：[1]西安石油大学机械工程学院

出　　处：《石油机械》2006年第9期4-6,4,共3页China Petroleum Machinery

基　　金：陕西省教育厅专项科研计划项目(04JK203)。

摘　　要：密封能力的确定是纳米磁性流体密封在工业应用中首先要解决的问题。针对这一问题,简要分析了影响磁性流体密封性能的磁极结构参数,在正交试验分析的基础上,确定了3个轴径共计96个有限元磁极模型,然后采用有限元方法进行数值计算,得出各个模型的密封压差。通过显著性分析和回归分析,得出计算密封压差的回归公式,并经过实验验证了有限元结果的正确性和回归公式的可靠性。Calculation of sealing capability of the nanometer magnetic fluid seal is a prime problem in its industry application. With the magnetic pole structure parameters simply analyzed,96 finite element magnetic pole models of 3 shaft diameters were determined on the basis of orthogonal analysis. The sealing pressure differences of the mentioned models were then calculated respectively through finite element analysis. With significance analysis and regression analysis,regression empirical formula of magnetic fluid seal of differential pressure was obtained,and through the sealing experiment,the reliability of the FEA results and the regression empirical formulas was validated.

关 键 词：纳米磁性流体 密封性能 有限元分析 正交试验 

分 类 号：TH136[机械工程—机械制造及自动化]