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首页> 外文期刊>Chinese journal of aeronautics >Conceptual Design Optimization of Fighter Trainer Aircraft with Double-delta Wing Configuration
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Conceptual Design Optimization of Fighter Trainer Aircraft with Double-delta Wing Configuration

机译：双三角翼配置的战斗机教练机概念设计优化

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摘要

Compared with a delta wing aircraft, the double-delta wing configuration has better aerodynamic performance at high angles of attack. An operational analysis was introduced as a method for evaluating training effectiveness of trainer aircraft. Approaches to the engineering estimation of aerodynamic characteristics for aircraft with a double-delta wing configuration were studied, and the procedures for determining aircraft performance indices formulated. Taking training effectiveness as the objective function and geometric parameters of the wing platform as design variables, through a numerical multivariate optimization arithmetic, the conceptual design optimization for a certain fighter trainer aircraft with double-delta wing configuration was carried out under the constraints of tactical and technical requirements and interrelated geometry. Agreement of a calculation example with engineering practice indicates that the optimal design has higher training effectiveness than the baseline design, and in addition, improves the structural force-bearing conditions.
机译：与三角翼飞机相比，双三角翼配置在大迎角下具有更好的空气动力学性能。引入了运行分析作为评估教练机训练效果的一种方法。研究了具有双三角翼构型的飞机的空气动力学特性的工程估算方法，并制定了确定飞机性能指标的程序。以训练效能为目标函数，以机翼平台的几何参数为设计变量，通过数值多元优化算法，对某双三角机翼战斗机教练机在战术和约束条件下进行了概念设计优化。技术要求和相关的几何形状。计算示例与工程实践的一致性表明，最佳设计的培训效果比基线设计更高，并且改善了结构承载力条件。

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