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提出一种面向设计的复合材料旋翼桨叶结构动力优化方法。采用典型剖面设计、变量连接、铺层变量连续化等方法，有效地处理了剖面内部形状、复合材料铺层、配重质量３类设计变量。在动力分析模型中考虑了剖面翘曲、耦合变形和陀螺力的影响，由三级数值计算模式实现固有频率灵敏度分析。约束条件包括了固有频率、结构重量、自转惯量等设计要求，优化求解采用基于序列二次规划的算法。上述方法真实反映了桨叶结构特征和实际工程设计要求。
A design-oriented dynamic optimization method of composite rotor blade structure is proposed. Three typical design variables such as profile shape, composite material lay-up and counterweight were effectively processed by typical cross-sectional design, variable connection and continuity of lay-up variables. In the dynamic analysis model, the effects of profile warping, coupling deformation and gyroscopic force are considered, and natural frequency sensitivity analysis is realized by the three-level numerical calculation mode. Constraints include the design requirements of natural frequency, structure weight, inertia moment and so on. The optimal solution is based on quadratic programming algorithm. The above method truly reflects the structural characteristics of the blade and the actual engineering design requirements.