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Т.В. Бурнышева, О.А. Штейнбрехер
16
Инженерный журнал: наука и инновации
# 9·2017
Rational designing the hatch edging thickness
when constructing the spacecraft compartment
© T.V. Burnysheva, O.A. Shteynbrekher
Kemerovo State University, Novokuznetsk Institute Branch,
Novokuznetsk, 654041, Russia
In this paper we investigate the ways to improve the strength of the anisogrid composite
lattice structures used in constructing spacecraft. We suggest a solution to the problem of
rational designing the lattice shells with the regular rib structure imperfection. When
choosing the thickness of the stepped edging of the lattice shell cutout we recommend to
pay due consideration to the stress concentration reduction in the structural components
near the cutout outer edging. It is shown that the solution should be sought with account
for the edging mass from the tolerance region limited by the approximating functions of
the stress concentration coefficients in the shell structural components. We obtained the
values of the edging thickness that allow reducing the stress concentration in the struc-
tural components.
Keywords:
anisogrid lattice structures, stress concentration, rational designing the
spacecraft, spacecraft
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