| 圆弧型线指尖密封结构的形成方法和迟滞性能分析 |
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| 引用本文： | 白花蕾.圆弧型线指尖密封结构的形成方法和迟滞性能分析[J].航空发动机,2014,40(3):49-51. |
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| 作者姓名： | 白花蕾 |
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| 作者单位： | 中航工业沈阳发动机设计研究所，沈阳 110015 |
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| 摘 要： | 对圆弧型线指尖密封结构的形成方式进行了分析和研究,在此基础上采用有限元技术对圆弧型线指尖密封结构的迟滞性能进行了计算分析。计算结果表明:在相同的展开角范围内,2种圆弧型线指尖密封结构的迟滞性能要优于对数螺线指尖密封结构的迟滞性能,圆弧型线弧长较短的指尖密封结构的迟滞性表现更优。
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| 关 键 词： | 指尖密封 圆弧型线 迟滞性能 航空发动机 对数螺线 |
Analysis of Hysteresis and Forming Method for Finger Seal with Arc Shape Curve |
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| Authors: | BAI Hua-lei |
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| Institution: | BAI Hua-lei (AVIC Shenyang Engine Design and Research Institute, Shenyang 110015, China) |
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| Abstract: | The forming method for finger seal with arc shape curve was analyzed and studied, and the hysteresis effect of finger seal with arc shape curve was computational analyzed by FEM(Finite Element Method). The result indicates that the hysteresis effects of two kinds of finger seal with arc shape curve are better than finger seal with logarithmic curvature in the range of the same opening angel. The shorter arc length indicate better hysteresis. |
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| Keywords: | finger seal arcs of circles shape-curve hysteresis aeroengine logarithmic curvature |
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