Jig-Shape Optimization of a Low-Boom Supersonic Aircraft

Pak, Chan-gi

关键词: SHAPE OPTIMIZATION;    SUPERSONIC AIRCRAFT;    SUPERSONIC CRUISE AIRCRAFT RESEARCH;    AIRCRAFT DESIGN;    BODY-WING AND TAIL CONFIGURATIONS;    STRUCTURAL DESIGN;    BENDING MOMENTS;    SONIC BOOMS;    DIRECT NUMERICAL SIMULATION;    COMPUTATIONAL GRIDS;    GOODNESS OF FIT;    JET AIRCRAFT NOISE;    SUPERSONIC FLIGHT;    NASTRAN;    COMPUTATIONAL FLUID DYNAMICS;    NASA PROGRAMS;   

RP-ID  :  AFRC-E-DAA-TN49552

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A simple approach for optimizing the jig-shape is proposed in this study. This simple approach is based on an unconstrained optimization problem and applied to a low-boom supersonic aircraft. In this study, the jig-shape optimization is performed using the two-step approach. First, starting design variables are computed using the least squares surface fitting technique. Next, the jig-shape is further tuned using a numerical optimization procedure based on in-house object-oriented optimization tool.