FEATURES OF CAD/CAE SYSTEMS APPLICATION IN THE CONTEXT OF EXTENDING RESOURCE OF THE FLAME TUBE OF THE MAIN COMBUSTION CHAMBER OF THE TURBOJET ENGINE OF TACTICAL AVIATION AIRCRAFT

Abstract

The article conducted a modeling number of the working process in the flame tube of the main chamber of combustion of the turbojet engine of tactical aviation aircraft. The geometric model of the flame tube has been created and adapted for carrying out the interconnecting calculation of heat and stress-strain stations of the walls of the flame tube under the influence of operating factors at the numerical modeling of the working process. Quantitative-qualitative analysis of modeling results was carried out and the connection between peculiarities of working process flow and characteristic damage of the flame tubes discovered in operation was established. The possibility of using modern CAD/CAE systems to solve scientific tasks to ensure maximum use of resource opportunities of the main and especially responsible parts of turbojet engune on the basis of the assessment of their damage.
 The obtained results of work process numerical calculations, thermal state and VAT of the heat pipes walls of the main combustion chamber refuse:
 
 identify critical areas and perform optimal construction;
 the decision to establish or extend the heat pipes resource is substantiated based on the assessment of the degree of depletion of harmfulness in conditions where the developer and manufacturer do not fulfill their obligations in terms of author support;
 to provide recommendations to aircraft repair companies regarding the finalization of aircraft structures during the implementation of the overhaul, avoiding long-term experiments to determine their ultimate state.