Stress-strain state analysis of the design of full-turning vertical empennage for aero-spacecraft

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In this work, the most rational schemes to designing the skin of a full-turning vertical empennage element (stabilator) have been studied. Skin designing schemes were chosen according to aero-spacecraft operating conditions in the re-entry trajectory. During designing process, the requirements for reusable structures of tourist-class aero-spacecrafts were taken into account, such as: maximum simplicity and endurance of the product. To determine the mechanical loads acting on the keel during its movement in the air, a numerical simulation of the aerodynamic flow-around the stabilator profile at 5 arbitrary points on the flight path was carried out. The parameters used for the analysis are: flight velocity, density and viscosity of the air. Of the 5 obtained fields of dynamic pressure acting on the stabilator, the field that creates the largest distributed load was used as the boundary condition for the analysis of the stress-strain state of the structure. The problem of mechanical loading of the stabilator was solved separately for each of the previously studied structural schemes of the skin. Based on the obtained calculation results the optimal skin structural scheme was chosen by comparing the displacements on the line connecting ribs.

About the authors

Andrey A. Chistyakov

Bauman Moscow State Technical University (National Research University of Technology)

Author for correspondence.
5 2-ya Baumanskaya St, bldg 1, Moscow, 105005, Russian Federation

Master Student of the Department SM-13 Rocket and Space Composite Structures, BMSTU

Valery P. Timoshenko

Bauman Moscow State Technical University (National Research University of Technology)

5 2-ya Baumanskaya St, bldg 1, Moscow, 105005, Russian Federation

Professor of the Department SM-13 Rocket and Space Composite Structures, BMSTU; Dr. Sc.


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Copyright (c) 2021 Chistyakov A.A., Timoshenko V.P.

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