Publication Date:
2019-07-20
Description:
The goals of this work are to 1) develop an optimization algorithm that can simultaneously handle a large number of sizing variables and topological layout variables for an aeroelastic wingbox optimization problem and 2) utilize this algorithm to ascertain the benefits of curvilinear wingbox components. The algorithm used here is a nested optimization, where the outer level optimizes the rib and skin stiffener layouts with a surrogate-based optimizer, and the inner level sizes all of the components via gradient-based optimization. Two optimizations are performed: one restricted to straight rib and stiffener components only, the other allowing curved members. A moderate 1.18% structural mass reduction is obtained through the use of curvilinear members.
Keywords:
Aircraft Design, Testing and Performance
Type:
NF1676L-27424
,
AIAA SciTech Forum 2018; Jan 08, 2018 - Jan 12, 2018; Kissimmee, FL; United States
Format:
application/pdf
