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苏-27系列飞机前起落架摆振分析

Shimmy analysis of nose landing gear of Su-27s series aircraft
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摘要 为了满足各自不同的漂浮性、地面操作和起降需求,对苏-27系列飞机前起落架进行了适应性更改设计。本文从摆振稳定性的角度,研究了各改型飞机的前起落架差异特征,并利用工程算法对系列飞机的几种典型前起落架进行了摆振分析,其研究结论可应用于其它飞机的前起落架设计和试验。 The nose landing gears of Su-27 series aircraft have been designed to meet various requirement covering flotation and all ground-based operations of whole family,from the baseline type to multi-role modified derivatives. In this paper,the different characteristics of nose landing gears of Su-27 series aircraft are reviewed with respect to shimmy stability,some engineering algorithms are applied to shimmy analysis. The general conclusion in this study will be a valuable guide in analyzing shimmy problem and test of other nose landing gear.
出处 《飞机设计》 2015年第5期23-27,共5页 Aircraft Design
关键词 摆振 前起落架 漂浮性 稳定距 当量阻尼系数 shimmy nose landing gear flotation caster length equivalent damping coefficient
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参考文献4

  • 1Gerhard Somieski.Shimmy analysis of a simple aircraft nose landing gear model using different mathematical methods[J]. Aerospace Science and Technology . 1997 (8)
  • 2Moreland W J.The story of shimmy. J.of The Aeronautical Sciences . 1954
  • 3Von Schlippe B,Dietrich R.Shimmy of a pneumatic wheel. NACA TM-1365 . 1954
  • 4Currey N S.Aircraft landing gear design. Principles and Practices . 1988

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