Rational designing the hatch edging thickness when constructing the spacecraft compartment
Authors: Burnysheva T.V., Shteynbrekher O.A.
Published in issue: #9(69)/2017
DOI: 10.18698/2308-6033-2017-9-1671
Category: Aviation and Rocket-Space Engineering | Chapter: Design, construction and production of aircraft
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 structural components.
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