TOPOLOGICAL OPTIMIZATION OF LATTICE COMPOSITE STRUCTURES FOR SPACE APPLICATIONS
A.V. Azarov1,2,3, A.A. Skleznev3, A.N. Polilov2,3, O.Yu. Volkova4
1Skolkovo Institute of Science and Technology, Moscow, Russia
2Bauman Moscow State Technical University, Moscow, Russia
3AO Tsentr Perspektivnykh Razrabotok, Khotkovo, Russia
4Mechanical Engineering Research Institute, Russian Academy of Sciences, Moscow, Russia
Keywords: composite material, topological optimization, lattice and micro-lattice structure, space application, 3D printing
Abstract
Approaches to the topological optimization of lattice composite structures aimed at improving their weight efficiency for use in rocket and space technology are investigated. Traditional filament winding methods and advanced technologies such as continuous-fiber 3D printing are considered; these enable the creation of micro-lattice structures with thin ribs and biomimetic properties. The application of the SIMP method in continuum and discrete models is demonstrated for a cylindrical spacecraft body shell. A comparison of various lattice structure designs shows that the weight of these structures is 18.5% lower when using the SIMP method compared to the traditional approach.
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