激光加工多孔端面机械密封静压分析Analysis of the Hydrostatic Effect of a Partial Laser Surface Textured Mechanical Seal
潘晓梅,蔡永宁,骆建国,胡滨,彭旭东
PAN Xiao-mei1,3,CAI Yong-ning1,3,LUO Jian-guo2
摘要(Abstract)：
建立了在部分密封端面上加工微孔的激光加工多孔端面机械密封理论分析模型,用有限元法求解雷诺方程,获得了不同微孔结构参数下端面的无量纲膜压分布,以获得最大端面静压为目标,提出了微孔结构参数的最优值,指出开孔区长度比最优值约为0.6,面积密度最优值大约为0.5。研究表明在部分密封端面上加工微孔可有效增大端面静压。
A theoretical analysis model is developed for a partial laser surface textured mechanical seal(LST-MS).The dimensionless hydrostatic pressure distribution on the seal face with different micro-pore geometry parameters is obtained from a numerical solution of the Reynolds equation solved by finite element method.The optimum values of the micro-pore geometry parameters are presented based on the biggest hydrostatic pressure.The parametric study demonstrates that substantial hydrostatic pressure can be produced on the seal face with partial micro-pores.
关键词(KeyWords)：
多孔密封;激光加工;有限元法;静压效应
micro-pore mechanical seal;laser texturing;finite element method;hydrostatic effect
基金项目(Foundation): 国家自然科学基金项目(50575152);; 教育部科学技术研究重点基金项目(03107);; 宁波市科技项目(2006B100030)
作者(Author):
潘晓梅,蔡永宁,骆建国,胡滨,彭旭东
PAN Xiao-mei1,3,CAI Yong-ning1,3,LUO Jian-guo2
参考文献(References)：
- [1]Etsion I,Burstein L.A model for mechanical sealswith regular microsurface structure[J].TribologyTrans.1996,39(3):677-683.
- [2]Etsion I,Halperin G.Increasing mechanical seals lifewith laser-textured seal faces[A].Proc of 15th ICFS[C].London,Professional Engineering PublishingLimited.1997,3-10.
- [3]于新奇,刘红美,蔡仁良.激光加工多孔端面非接触机械密封的性能研究[J].流体机械,2005,33(1):20-24.
- [4]杜东波,骆建国,胡滨,等.激光加工多孔端面机械密封的理论研究[J].流体机械,2006,34(5):12-14.
- [5]Etsion I,Halperin G.A laser surface textured hydro-static mechanical seal.Sealing Technology[J].2003,(3):6-10.
- [6]彭旭东,冯向忠,胡丹梅,等.非接触式气体润滑密封变形的数值分析[J].摩擦学学报,2004,24(6):536-540.