W形金属密封环工作状态下综合性能优化设计
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摘要
为满足航空航天领域严苛工况下的密封要求,对W形金属密封环综合性能进行研究,提出从回弹性能、密封性能、稳定性能3个方面对W形金属密封环工作状态下的综合性能进行优化;建立W形环静态工况计算模型和准静态压缩回弹计算模型,分别计算塑形变形区域占比、最大接触应力和回弹率来描述其稳定性、密封性和回弹性;建立一套W形金属密封环的优化方法,应用分层求解和加权平均构造目标函数的方法,在给定工作条件下完成可行域内W形环最优综合性能设计的求解。优化结果与国外某公司产品契合度较高,验证了整个优化方法的正确性。
To meet the sealing requirements in extremely working conditions in aerospace field,the overall performance of W-sealing ring was studied. A method was proposed to optimize the overall performance of W-sealing ring under working condition from springback,sealing and stability performance,and the static calculation model under working conditions and the quasi-static compression springback model were built to calculate the proportion of plastic deformation region,the maximum contact stress and the springback rate to describe the stability,the sealing and springback performances. The optimization method of W-sealing ring was built,which uses stratified solution method and weighted mean to build structural objective function,and can complete the solution of the overall performance of W-ring in the range of working conditions. The result matches a foreign company's product well,which proves correctness of the method.
To meet the sealing requirements in extremely working conditions in aerospace field,the overall performance of W-sealing ring was studied. A method was proposed to optimize the overall performance of W-sealing ring under working condition from springback,sealing and stability performance,and the static calculation model under working conditions and the quasi-static compression springback model were built to calculate the proportion of plastic deformation region,the maximum contact stress and the springback rate to describe the stability,the sealing and springback performances. The optimization method of W-sealing ring was built,which uses stratified solution method and weighted mean to build structural objective function,and can complete the solution of the overall performance of W-ring in the range of working conditions. The result matches a foreign company's product well,which proves correctness of the method.
引文
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[9]索双富,邢敏杰,薛庆,等.W形金属密封环轴向刚度影响因素研究[J].润滑与密封,2016,41(2):14-17.SUO S F,XING M J,XUE Q,et al.Research on effect factors of axial stiffness of metallic W-ring[J].Lubrication Engineering,2016,41(2):14-17.
[10]王晨希,杨义勇,索双富,等.W形金属密封环回弹与密封性能研究[J].润滑与密封,2016,41(1):50-54.WANG C X,YANG Y Y,SUO S F,et al.Reserarch on compression-resilience and sealing performance of metallic W-ring[J].Lubrication Engineering,2016,41(1):50-54.
[11]姜旸,索双富,魏云峰,等.W形金属密封环工作状态下的力学状态与回弹性能研究[J].润滑与密封,2018,43(3):31-36.JIANG Y,SUO S F,WEI Y F,et al.Research onworking state stress and compression recovery performance of metallic W-sealing ring[J].Lubrication Engineering,2018,43(3):31-36.
[12]邢敏杰.航空发动机中W形金属密封环密封性能及泄漏研究[D].北京:北京理工大学,2015.
[2]HWANG M,POPE A N,SHUCKTIS B.Advanced seals for engine secondary flowpath[J].Journal of Propulsionand Power,1996,12(4):794-799.
[3]海因茨K米勒,伯纳德S纳乌.流体密封技术:原理与应用[M].北京:机械工业出版社,2002.
[4]张文良,王雪,刘继文,等.弹性金属密封技术[J].液压气动与密封,2009(3):4-7.ZHANG W L,WANG X,LIU J W,et al.Elastic metal seal technology[J].Hydraulics Pneumatics&Seals,2009(3):4-7.
[5]LI W,MAYS S.Springback analysis of metallic O-ring seals using the non-linear finite element method[C]//Proceedings of18th international conference on fluid sealing.Belgium:BHRA,2005:217-222.
[6]YOKOYAMA K.Effect of contact pressure and thermal degradation on the seal ability of O-ring[J].JSAE Review,1998,19:123-128.
[7]励行根,蔡仁良,杭建伟,等.反应堆压力容器“C”形密封环的研制[J].压力容器,2013(5):74-79.LI X G,CAI R L,HANG J W,et al.Manufacture of C-type ring for reaction pressure vessels[J].Pressure Vessel Technology,2013(5):74-79.
[8]龚雪婷,蔡纪宁,张秋翔,等.金属W形密封环的弹塑性接触有限元分析[J].润滑与密封,2011,35(11):82-85.GONG X T,CAI J N,ZHANG Q X,et al.Elastoplastic contact finite element analysis of metal W-sealing ring[J].Lubrication Engineering,2011,35(11):82-85.
[9]索双富,邢敏杰,薛庆,等.W形金属密封环轴向刚度影响因素研究[J].润滑与密封,2016,41(2):14-17.SUO S F,XING M J,XUE Q,et al.Research on effect factors of axial stiffness of metallic W-ring[J].Lubrication Engineering,2016,41(2):14-17.
[10]王晨希,杨义勇,索双富,等.W形金属密封环回弹与密封性能研究[J].润滑与密封,2016,41(1):50-54.WANG C X,YANG Y Y,SUO S F,et al.Reserarch on compression-resilience and sealing performance of metallic W-ring[J].Lubrication Engineering,2016,41(1):50-54.
[11]姜旸,索双富,魏云峰,等.W形金属密封环工作状态下的力学状态与回弹性能研究[J].润滑与密封,2018,43(3):31-36.JIANG Y,SUO S F,WEI Y F,et al.Research onworking state stress and compression recovery performance of metallic W-sealing ring[J].Lubrication Engineering,2018,43(3):31-36.
[12]邢敏杰.航空发动机中W形金属密封环密封性能及泄漏研究[D].北京:北京理工大学,2015.