航空学报 > 1990, Vol. 11 Issue (11): 647-649

起落架落震试验的数字模拟方法

倪学仁   

  1. 西安飞机公司
  • 收稿日期:1989-10-25 修回日期:1990-04-15 出版日期:1990-11-25 发布日期:1990-11-25

A NUMERICAL METHOD FOR SIMULATING DROP TEST OF LANDING GEARS

Ni Xueren   

  1. Xian Aircraft Company
  • Received:1989-10-25 Revised:1990-04-15 Online:1990-11-25 Published:1990-11-25

摘要: <正> 在计算飞机起飞、着陆和滑行等地面运动的静、动态载荷时,除了需要飞机结构和气动参数外,起落架减震器的性能参数更占有重要地位。而这些性能参数中尤以决定油液阻尼力的流最系数为重要。长期以来,国内主要靠查手册、凭经验确定这个系数,如果能较准确地确定流量系数,对载荷计算是很有意义的事。

关键词: 动力响应, 起落架设计, 落震试验

Abstract: This paper recommends that some uncertain parameters, such as discharge coefficient of a landing gear, can be evaluated by numerical method which simulates the drop test process of the land ng gear. This method can also be employed in the design stage of a landing gear for parameter optimization.

Key words: dynamic response, design of landing gears, drop test