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主要研究了不同翼梢装置对飞机气动、结构特性的影响。对几种带翼梢装置机翼的气动特性N-S计算结果进行对比分析,揭示了不同翼梢装置的减阻机理及对飞机气动性能的影响。采用MSC Patren,MSC Flds建立基本翼及几种带翼梢装置机翼的动力学有限元模型和非定常空气动力网格,应用MSC Nastran求解序列SOL103对其进行固有模态分析,利用求解序列SOL 145进行颤振分析,通过对比分析得到翼梢装置对机翼的振动和颤振特性影响。
Mainly studied the different wing tip device on the aerodynamic, structural characteristics. Comparing and analyzing the aerodynamic characteristics N-S of several wingtip devices, the drag reducing mechanism of different wingtip devices and its influence on aerodynamic performance are revealed. Using MSC Patren and MSC Flds, the dynamic finite element model and unsteady aerodynamic grids of the basic wing and several wingtipped wings were established. The MSC Nastran solution sequence SOL103 was used to carry out the natural modal analysis. By using the solution sequence SOL 145 flutter analysis, through the comparative analysis of the wing tip device wing vibration and flutter characteristics.