METHODS OF OPTIMAL DESIGNING
OF CONSTRUCTIONS OF CONVENTIONAL
AND COMPOSITE MATERIALS SUBJECTED
TO WAVE AND STATIC ACTIONS 
V. N. Bakulina, E. L. Gusevb, and
V. G. Markovc

UDC 539.3

The problem of optimal designing of inhomogeneous 
constructions with a combination of properties prescribed in advance 
is considered. The varied parameters include all the parameters determining 
the structure of an optimal construction: the physical properties 
of the layers, the geometric thicknesses of the layers, and the number 
of layers. An efficient procedure of optimal designing has been developed. 
The problem of synthesis of the optimal geometry of a stiffened shell 
with simultaneous search for its optimal structural design has been 
solved. The mass of the stiffened shell is minimized with allowance 
for the restrictions of fracture mechanics and static strength and 
also the restrictions for the stiffness characteristics of the shell 
in bending and torsion. The method developed and the computational 
program can be used in designing stiffened shells.

aInstitute of Applied Mechanics, Russian Academy 
of Sciences, Moscow, Russia; email: pagentet@glasnet.ru; 
bYakutsk Scientific Center, Russian Academy of Sciences, 
Yakutsk, Russia; email: e.l.gusev@sci.yakutia.ru; 
cN. E. Zhukovskii Central Aerohydrodynamics 
Institute, Zhukovskii, Moscow Region, Russia. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 6, 
pp. 53-56, November-December, 2001. 
Original article submitted November 3, 2000

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