摘要
运用理论分析、数值模拟、模型实爆试验相结合的方法,对客机舱门门边结构和受力状态进行分析,得到了描述舱门门边受力部位的力学模型。针对门边受力部位承受爆炸冲击载荷下的状态,运用ABAQUS有限元软件的Explicit模块进行数值模拟,分析了门边加固的必要性和加固难点,提出了舱门门边的加固措施,并对实爆试验与数值模拟结果进行了对比。研究结果表明:原型客机舱门门边不能承受爆炸冲击力,必须加固;加固所用的减压板平均厚度应为5mm,加强板平均厚度为6mm,加固件总质量为3.98kg,加固措施有效。
A combination method of theoretical analysis, numerical simulation and model explosion test was used, the structure and stress state of airliner cabin door edge were analyzed, and the mechanical model was set up to describe the forced location of cabin door edge. Aimed at the forced location of door edge subjected to explosion impact loading, numerical simulation was put up by using the Explicit module of finite element software ABAQUS. The necessity and difficulties of door edge reinforcement were analyzed, reinforcement measures were proposed, and the results of explosion test and numerical simulation were compared. Analysis result shows that airliner cabin door edge cann＇t bear explosion impact loading, and must be reinforced. The mean thickness of pressure-reducing plates is 5 mm, the mean thickness of reinforcement plates is 6 mm, the total weight of reinforced members is 3.98 kg, and reinforcement measure is effective. 1 tab, 12 figs, 11 refs.
出处
《交通运输工程学报》
EI
CSCD
北大核心
2011年第6期50-55,共6页
Journal of Traffic and Transportation Engineering
基金
航空科学基金项目(2010ZE52057)
江苏省博士后科研资助计划项目(1101087C)
中国人民解放军理工大学预研基金项目(2010-3541D)
关键词
客机舱门
冲击荷载
数值模拟
加固措施
爆炸试验
airliner cabin door
impact loading
numerical simulation
reinforcement measure
explosion test
