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首页> 外文期刊>Journal of the American Helicopter Society >Cross-Sectional Design of Composite Rotor Blades
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Cross-Sectional Design of Composite Rotor Blades

机译：复合转子叶片的截面设计

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An important step of rotor blade design is to design cross sections that possess specified stiffness and inertia properties. This paper describes an innovative methodology for design of composite rotor blade cross sections. The proposed methodology includes four parts: an improved optimization model, a parametric geometry generator with appropriate mesh, an efficient and reliable cross-sectional analysis program, and an efficient optimizer. The optimization model is improved by adding manufacturability constraints that are generally ignored in traditional design approaches. The optimization model also integrates mass and stiffness properties along with structural integrity. To solve the optimization problem with a mix of continuous and discrete variables resulting from manufacturability constraints, a hybrid optimization method is developed that can rapidly search for and find an optimum design. The design methodology is demonstrated by several examples. In addition, a sensitivity analysis is conducted by which design variables with little effect can be eliminated. Based on this approach, two models with a reduced number of design variables are created and the resulting simplified designs are evaluated.
机译：转子叶片设计的重要步骤是设计具有指定刚度和惯性特性的横截面。本文介绍了一种创新的复合材料转子叶片横截面设计方法。拟议的方法包括四个部分：改进的优化模型，具有适当网格的参数几何生成器，有效且可靠的横截面分析程序以及有效的优化器。通过添加在传统设计方法中通常会忽略的可制造性约束来改进优化模型。优化模型还集成了质量和刚度属性以及结构完整性。为了解决由可制造性约束导致的连续变量和离散变量的混合来解决优化问题，开发了一种混合优化方法，该方法可以快速搜索并找到最佳设计。几个示例演示了该设计方法。此外，进行了敏感性分析，可以消除影响很小的设计变量。基于此方法，创建了两个设计变量数量减少的模型，并评估了所得的简化设计。

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