摘要
航空轮胎爆裂所产生的高速轮胎碎片是在航空结构设计时候必须考虑的一种严重威胁,而碎片冲击的方式(冲击角度和速度)直接决定了冲击的危害程度。根据设计原则和适航要求,需要对轮胎碎片不同冲击条件下的冲击危害进行研究,进而避免航空结构在使用中遭受严重的冲击损坏。在实验验证的基础上,通过数值计算研究了航空铝合金薄板在多种冲击角度和速度下的动态响应,并对计算结果进行了对比分析。结果表明,该型铝合金薄板能抵抗最大角度为90°和最大速度为135 m·s^(-1)的轮胎碎片冲击。
The high-speed tire fragment released during aircraft tire blowout is a severe threat that must be considered in aircraft structure design. The damage degree is determined by impact pattern（angle and velocity）. According to the design principles and airworthiness regulations, it is necessary to study the impact hazard of tire fragment under different impact conditions, which can help avoid the aircraft structure suffering severe damage in service. Based on the validation of the experiment, the dynamic response of aluminium alloy thin plate under various impact angles and velocities were researched by numerical simulation, furthermore, the calculation results were compared. The results show that the aluminium alloy thin plate can bear the tire fragment impact with the maximum impact angle of 90° and the maximum impact velocity of 135 m·s^-1.
出处
《热加工工艺》
CSCD
北大核心
2017年第16期49-52,共4页
Hot Working Technology
基金
高等教育博士点基金项目(20136102120031)
国家自然科学基金项目(51305351)
关键词
航空轮胎碎片
铝合金薄板
冲击
动态响应
aircraft tire fragment
aluminium alloy thin plate
impact
dynamic response
