欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
在某机翼颤振模型基础上,建立了挂架和外挂结构动力学模型,并组装成机翼/外挂颤振计算模型。与光机翼情况对比,对应基准设计参数状态的机翼/外挂颤振速度降低了近50%。为研究机翼/外挂颤振特性受设计参数的影响,分别改变机翼油箱燃油状态、挂架刚度、外挂弦向悬挂位置和外挂展向悬挂位置,获得了设计参数对该机翼/外挂模型颤振特性的影响规律,给出了提高机翼/外挂颤振特性的改进建议。
英文摘要：
The aim of the present work is focused on wing-store flutter problem, which is dependence on four types of design parameters. The structural dynamics models of pylon and store are first established and combined with a wing model to build the wing-store flutter model. Compared with the clean wing model, the flutter speed computed from the wing-store model decreases up to approximately 50%. Four types of special design parameters are investigated for their influence on the wing-store flutter characteristics, namely, the wing fuel tank state, pylon stiffness, chord-wise and span-wise station of the store. Only one of these design parameters is changed in the parametric study each time. Finally, influence of these parameters on the wing-store flutter characteristics is evaluated and some advices are proposed to improve the wing-store flutter characteristics.
同期刊论文项目
同项目期刊论文
期刊信息
位置：