航空学报 > 1990, Vol. 11 Issue (11): 573-577

鸟撞载荷下Y12飞机前风挡非线性动力响应分析

文坚   

  1. 飞机结构强度研究所
  • 收稿日期:1989-10-25 修回日期:1990-05-10 出版日期:1990-11-25 发布日期:1990-11-25

THE NONLINEAR DYNAMIC RESPONSE ANALYSIS OF THE FRONT WINDSHIELD OF Y12 UNDER“BIRD-IMPACT”LOADS

Wen Jian   

  1. Aircraft Structure Strength Research Institute
  • Received:1989-10-25 Revised:1990-05-10 Online:1990-11-25 Published:1990-11-25

摘要: 本文利用VEP系统对Y12飞机6mm和8mm厚的前风挡上三点,在0.91kg鸟以56~61m/s撞击下的非线性动力响应进行了数值分析,并与实验结果进行了比较,其中二点情况与实验符合很好。

关键词: 鸟撞, 非线性动力响应, 有限元分析程序

Abstract: The finite element analysis program system VEP is used to carry out the numerical analysis of nonlinear dynamic response of the aircraft Y12's front windshield at the three points B, C, and D under bird impact condition. The weight of the bird is 0.91 kg and the velocity is 56-61 m/s. The caculated results are compared with the experimental results and it is found that the results are in good agreement except at the point D.

Key words: bird impact, nonlinear dynamic response, finite eleme-nt analysis program VEP