论文部分内容阅读
分析了高超声速飞行器机翼关键部件的损伤演化及飞行器飞行动态对损伤的影响。在建立了高超声速飞行器机翼关键部件损伤动力学模型、飞行器动力学模型以及对机翼关键部件载荷应力分析的基础之上,依次分析了飞行器飞行高度、速度、迎角以及控制舵面偏角等飞行器变量对机翼关键部件损伤动态特性的影响,以确定影响损伤的关键变量。仿真结果表明,相对于其他变量,飞行器迎角对机翼关键部件损伤的影响是最大的。基于此结果可得出当飞行器进行高超声速飞行时,从保证飞行安全与延长使用寿命的角度来看,应尽量限制飞行迎角大小。所得结论为实际工程中结构可靠性设计提供了有价值的参考。
The damage evolution of the key components of the hypersonic vehicle wing and the flight dynamics of the aircraft are analyzed. Based on the establishment of the damage dynamics model of the key components of the hypersonic vehicle wing, the dynamics model of the aircraft and the stress analysis of the critical components of the wing, the flight altitude, velocity, angle of attack and the control angle And other aircraft variables on the dynamic characteristics of the critical parts of the wing damage to determine the key variables that affect the damage. The simulation results show that, compared with other variables, the angle of attack of the aircraft has the greatest impact on the damage of the key components of the wing. Based on this result, it can be concluded that the size of the flight angle of attack should be limited from the perspective of ensuring the flight safety and prolonging the service life when the aircraft is performing hypersonic flight. The conclusions obtained provide valuable references for structural reliability design in practical engineering.