| 柔性支承柱面气膜密封CFD数值分析 |
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| 引用本文： | 代迪,刘美红. 柔性支承柱面气膜密封CFD数值分析[J]. 电子科技, 2018, 31(4): 60 |
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| 作者姓名： | 代迪 刘美红 |
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| 作者单位： | 昆明理工大学 机电工程学院 |
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| 基金项目： | 国家自然科学基金（51165014）；昆明理工大学分析测试基金（2017M20152103036） |
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| 摘 要： | 针对柔性气膜密封技术在航空发动机中的应用需求，使用CFD数值分析技术分析柔性支承柱面气膜的密封性能。首先在Proe中建立柱面气膜的密封参数化模型，并分析了气膜密封原理；然后基于有限元分析的Linear Soid划分方法，使用ANSA网格划分软件来划分网格，得到柔性支承柱面的静压、速度和剪应力分布等数据，并分析柱面结构参数与操作参数对柔性支承柱面气膜密封性能的影响。实验结果表明，粘度、压差和转速等操作参数能明显影响柔性支承柱面气膜的密封性能。
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| 关 键 词： | 柔性柱面气膜 CFD 密封 操作参数 结构参数 剪应力 |
Combined Location Method of Beidou/GPS and Its Application in Transmission Line Inspection |
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| DAI Di,LIU Meihong. Combined Location Method of Beidou/GPS and Its Application in Transmission Line Inspection[J]. Electronic Science and Technology, 2018, 31(4): 60 |
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| Authors: | DAI Di LIU Meihong |
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| Affiliation: | School of Mechanical and Electrical Engineering,Kunming University of Science and Technology |
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| Abstract: | Aiming at the application requirements of flexible gas-seal technology in aeroengine, CFD numerical analysis technique is used to analyze the sealing performance of flexible support cylindrical gas-membrane. Firstly, the seal parametric model of cylindrical gas film was established and the gas film sealing principle was analyzed. Then, based on the finite element analysis method of Linear Soid, ANSA meshing software was used to divide the mesh to obtain a non-groove cylindrical gas film Static pressure, velocity and shear stress distribution data, and analysis of cylindrical structure parameters, groove parameters and operating parameters on the flexible support cylindrical membrane sealing performance. The experimental results show that the operating parameters such as viscosity, pressure difference and rotational speed can significantly affect the sealing performance of flexible support cylindrical gas film. |
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| Keywords: | flexible cylindrical gas film CFD seal operating parameters structural parameters shear stress |
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