中国民航大学学报 ›› 2019, Vol. 37 ›› Issue (4): 15-19.

• 民用航空 • 上一篇    下一篇

机场跑道航空器拦阻系统动力学分析#br#

尹涛,冉振华,王有杰
  

  1. (天津航天瑞莱科技有限公司北京分公司,北京100076)
  • 出版日期:2019-08-23 发布日期:2020-04-01
  • 作者简介:尹涛(1988—),男,辽宁鞍山人,工程师,硕士,研究方向为结构动力学分析和系统集成.

Dynamic analysis on engineered material arresting system#br#

YIN Tao, RAN Zhenhua, WANG Youjie#br#   

  1. (Beijing Subbranch, Tianjin Aerospace Reliability Technology Co Ltd, Beijing 100076, China)
  • Online:2019-08-23 Published:2020-04-01

摘要: 建立了机场跑道拦阻系统(EMAS)的动力学模型。其中,阻滞材料对飞机的作用被处理为作用在起落架上的集中力,与阻滞系数和阻滞面积相关。推导了力学模型的数学描述,给出阻滞系数的实验拟合方法,基于实验数据分析某泡沫阻滞材料的阻滞系数,并与经验公式所得结果进行比较。使用该材料的相关参数,利用数值方法计算了B737-700 飞机在指定参数和铺设条件下的阻滞过程,算例验证了该方法的合理性,进一步分析了跑道铺设、飞机初始速度等参数对阻滞效果的影响。为机场跑道拦阻系统的动力学建模与分析提供了一种新的思路和方法。

关键词: 机场跑道拦阻系统, 动力学分析, 阻滞力模型

Abstract: EMAS dynamic model is constructed considering force of arresting materials on aircraft as focused force on landing gear which is related to arresting ratio and contact area. The mathematical description of this model is derived based on Lagrange equations; the arresting ratio is determined through experimental result fitting, which is compared with empirical formulae. Arresting process of B737-700 under certain laying conditions is calculated by numerical approach using relative material parameters, proving the rationality of the approach, analyzing the effect of runway laying and aircraft initial speed on arresting performance and providing a novel way for the dynamic simulation and analysis of runway arresting system.

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