文档介绍：27TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES
STRENGTH/AEROELASTICITY RESEARCH
AT MULTIDISCIPLINARY STRUCTURAL DESIGN
OF HIGH ASPECT RATIO WING
Vasily V. Chedrik*, Fanil Z. Ishmuratov*, Svetlana I. Kuzmina*, Mikhail Ch. Zichenkov*
* Central Aerohydrodynamic Institute (TsAGI), Zhukovsky, Russia
Keywords: high aspect ratio wing, aeroelasticity, MDO
Abstract twist are determined from the requirement of the
maximum of lift-to-drag ratio for cruise flight
The paper is devoted to application of
regime. Typical airplane structural design
methodology of preliminary aircraft design by
problem is finding of the structural variants
using multidisciplinary analysis and
having minimum mass under strength, stiffness,
optimization. The purpose of the design is
buckling, static aeroelasticity, and flutter
decrease of aircraft structural weight at
constraints.
satisfying strength and aeroelasticity
Nowadays, the aircraft design process in
requirements. Two-level approach is used for a
aerospace industry generally consists of a set of
structural design of an airplane wing which is
sequential developments by specialists of
made posite or metallic materials.
different groups: aerodynamics, structures,
The flowchart of multidisciplinary analysis
aeroelasticity, weights, etc. anization of
and optimization are discussed. Some results of
the design process allows carrying out
design optimization under multiple constraints
multidisciplinary analysis of possible solutions,
for wing of high aspect ratio are presented.
but due to plexity of the information
Variants of the wing structure both metallic and
exchange between specialists of the different
composite have been considered. Aeroelasticity
groups it requires large time expenses and
characteristics of high aspect ratio wing have
restricts number of considering variants. An
been confirmed in TsAGI wind tunnel t