| 柱面气膜密封界面结构与性能分析 |
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| 引用本文： | 马纲,栗秀花,沈心敏,胡广阳. 柱面气膜密封界面结构与性能分析[J]. 航空动力学报, 2011, 26(11): 2610-2616 |
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| 作者姓名： | 马纲 栗秀花 沈心敏 胡广阳 |
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| 作者单位： | 1. 北京航空航天大学机械工程及自动化学院,北京,100191
2. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015 |
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| 基金项目： | 航空基金(20080451012); 国家自然科学基金(51075018) |
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| 摘 要： | 选择并针对柱面气膜密封中六种典型的螺旋槽派生界面结构,基于有限元数值分析方法进行了气膜力学特性及密封特性的定量计算和分析比较;建立了不同界面型式的密封特性与可压缩数、膜厚的关系曲线;研究分析了不同界面结构密封特性变化特点和应用中的优劣势,为密封系统研究和设计选型提供了理论基础及指导.分析中的每种密封界面结构参数均为依据有关文献选取的优化或近似优化数据,采用的计算分析方法可拓展应用到其他结构中.
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| 关 键 词： | 柱面气膜密封 界面结构 有限元法 气膜特性 定量分析 |
| 收稿时间： | 2010-12-15 |
| 修稿时间： | 2011-07-11 |
Analysis of performance and interface structure of cylinder gas film seal |
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| MA Gang,LI Xiu-hu,SHEN Xin-ming and HU Guang-yang. Analysis of performance and interface structure of cylinder gas film seal[J]. Journal of Aerospace Power, 2011, 26(11): 2610-2616 |
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| Authors: | MA Gang LI Xiu-hu SHEN Xin-ming HU Guang-yang |
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| Affiliation: | MA Gang1,LI Xiu-hua1,SHEN Xin-ming1,HU Guang-yang2 (1.School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,Beijing 100191 China,2.Shenyang Aeroengine Research Institute,Aviation industry Corporation of China,Shenyang 110015,China) |
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| Abstract: | The type of interface structure obviously influences the performance and design of cylinder gas seal.The paper selected six typical interface structures derived from spiral groove,and performed quantitative analysis of mechanical properties and sealing performance of the gas-film based on finite element numerical analysis method;the relationship between sealing performance of different interfaces and compressibility number(and film thickness) was established;the sealing properties of different interface types and possible advantages and disadvantages of their application were analyzed,providing a basis for selection and design guidance of cylinder gas seal.The structural parameters of these interfaces are selected based on optimal or approximately optimal data of related literature. |
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| Keywords: | cylinder gas film seal interface structure finite element method |
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