摘要
分别利用实验方法和有限元分析方法研究了斜支板和波纹板前缘结构的抗鸟撞性能进行分析计算,验证了数值模拟方法在复杂结构的抗鸟撞性能分析中应用的可行性。通过与实验结果对比,验证了斜支板结构模型的正确性,肯定了其具有良好的抗鸟撞特性;波纹板结构初始模型的计算结果与实验结果存在较大差异,主要原因是未考虑蒙皮与波纹板的连接强度,造成了波纹板结构抗鸟撞失效。针对波纹板模型进行了改进,最终得到与实验结果相符的有限元模型。
This article used experimental method and finite element method （FEM） to study bird impact resistance for two types of aircraft wing leading-edge structure, in which the slanting supporting plate structure and corrugated panel structure were included. And the feasibility of the numerical simulation method to analyzing bird impact performance of complex structures has been verified. The simulation model of slanting supporting plate structure was validated by comparison with the experimental results, and its good bird impact resistance was demonstrated; however, the simulation results with the initial model of corrugated panel structure did not match the experimental ones without considering the joint strength between the skin and corrugated panel. The corrected simulation model of cor- rugated panel was finally built up.
出处
《机械科学与技术》
CSCD
北大核心
2011年第10期1757-1760,共4页
Mechanical Science and Technology for Aerospace Engineering
关键词
抗鸟撞
斜支板结构
波纹板结构
数值仿真
实验
LS—DYNA
anti-bird impact
slanting supporting plate structure
corrugated panel structure
simulation
experiment
