流体机械2016，Vol.44Issue(6)：29-33,5.DOI:10.3969/j.issn.1005-0329.2016.06.006
混合齿密封动力特性的分析与比较
Analysis and Comparison of Dynamic Characteristics for a Kind of Compound Seal
摘要
Abstract
A horizontal blade is added on the vertical side of the traditional staggered seal.Seal performance and stability is im-proved by this compound axial/radial seal.The three dimensional CFD calculation model was set up to analyze seal performance of the staggered seal and the compound seal.The cross stiffness coefficient and the effective damping coefficient were calculated and compared.The cross stiffness coefficient of the compound seal is smaller than that of the staggered seal.The effective damping coefficient at the low frequency zone is higher than that of the staggered seal.Stability of the compound seal is higher than that of the staggered seal and its leakage ration is lower than that of the staggered seal.关键词
密封/横齿/动力特性/有效阻尼Key words
seal/lateral tooth/dynamic characteristics/effective damping coefficient分类
机械制造引用本文复制引用
张明杰,杨建刚,许万军..混合齿密封动力特性的分析与比较[J].流体机械,2016,44(6):29-33,5.基金项目
国家自然科学基金资助项目 （）
