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Generation of Parametric Equivalent-Area Targets for Design of Low-Boom Supersonic Concepts

机译:用于设计低声速超音速概念的参数等效面积目标

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A tool with an Excel visual interface is developed to generate equivalent-area (A_e) targets that satisfy the volume constraints for a low-boom supersonic configuration. The new parametric A_e target explorer allows users to interactively study the tradeoffs between the aircraft volume constraints and the low-boom characteristics (e.g., loudness) of the ground signature. Moreover, numerical optimization can be used to generate the optimal A_e target for given A_e volume constraints. A case study is used to demonstrate how a generated low-boom A_e target can be matched by a supersonic configuration that includes a fuselage, wing, nacelle, pylon, aft pod, horizontal tail, and vertical tail. The low-boom configuration is verified by sonic-boom analysis with an off-body pressure distribution at three body lengths below the configuration.
机译:开发了具有Excel可视界面的工具来生成等效面积(A_e)目标,这些目标满足低臂超音速配置的体积约束。新的参数化A_e目标浏览器使用户可以交互地研究飞机体积约束与地面信号的低震荡特性(例如响度)之间的折衷。此外,对于给定的A_e体积约束,可以使用数值优化来生成最佳A_e目标。通过案例研究来演示如何通过包括机身,机翼,机舱,吊架,后吊舱,水平尾翼和垂直尾翼的超音速配置来匹配所产生的低动量A_e目标。低声速配置通过音速动臂分析得到验证,并在该配置以下三个体长处具有体外压力分布。

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