小展弦比翼面颤振分析方法研究

Flutter Analysis of Low Aspect Ratio Wing Surface

给出了一种适用于小展弦比翼面初步设计的颤振分析方法。根据小展弦比翼面结构特征,运用简化的理想模态和活塞理论建立颤振分析模型,分析了翼面结构参数对颤振特性的影响。并以某型翼面为例验证了本方法的实用性,与NASTRAN计算结果进行了比较分析。

This article gives one kind of preliminary design flutter analysis method which can be applied to the low aspect ratio wing surface. According to the low aspect ratio wing surface structural features, the simplified ideal modality and Piston theory are adopted to establish the flutter analysis model, and the flutter characteristics influenced by the wing surface design parameter are analyzed too. A certain model of wing surface as an example verifies the feasibility of this method compared with the Nastran computed result.