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

Shields, Elwood ; Li, Wu

PID  :  NTRS Document ID: 20110004013
RP-ID  :  NF1676L-10775

学科分类：声学和超声波

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A tool with an Excel visual interface is developed to generate equivalent-area (A(sub e)) targets that satisfy the volume constraints for a low-boom supersonic configuration. The new parametric Ae 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(sub e) target for given A(sub e) volume constraints. A case study is used to demonstrate how a generated low-boom Ae 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