航空学报 > 1994, Vol. 15 Issue (1): 23-26

对我国以往常用前起落架载荷谱存在问题的探索

王裕昌   

  1. 西安73-14信箱,西安,710089
  • 收稿日期:1993-04-15 修回日期:1993-07-06 出版日期:1994-01-25 发布日期:1994-01-25

INDENTIFICATION OF NONLINEAR PROPERTIES OF AN AIRCRAFT LANDING GEAR SHOCK STRUT

Zhang Zengchang, Zhang Jiangjan   

  1. Institute of Vibration Engineering Research,Nanjing University of Aeronautics and Astronautics,Naniing,210016;Box 73-14 of Xi'an Xi'an 710089
  • Received:1993-04-15 Revised:1993-07-06 Online:1994-01-25 Published:1994-01-25

摘要: 通过对轰六前起落架主、辅减摆器使用载荷谱的实测、疲劳试验实施方法和试验结果的介绍与分析,初步探索了我国以往常用前起落架载荷谱中存在的问题以及疲劳试验结果与前起落架外场实际破坏不符的原因。并对今后编制前起落架载荷谱和确定前起落架疲劳试验加载方法提出了改进意见。

关键词: 载荷试验, 疲劳试验, 前轮阻尼器

Abstract: In this paper some problems existing in often used nose gear load spectra and the rea- son why fatigue test results are not in accordance with that of actual failure in practical service of nose gears are discussed by service load spectra measurements of main and accessory shimmy damper of the nose gear for H6 airplane,and through the introduction and analysis of fatigue test method and its results.Suggestion is given for improvement of future nose gear load spectra compilation and its fatigue test loading method determination.

Key words: loading tests, fatigue tests, nose wheels dampers

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