TY JOUR TI Technological characteristics of the formation of functionally oriented properties for the elements and structure of helicopter shaft turbine engine based on a system of conditions KW gas turbine engine KW structure of elements KW engineering support KW functionally oriented properties KW parameters patterns KW system of conditions KW servicing JO Science intensive technologies in mechanical engineering AU Mikhaylov, D.A. AU Khandozhko, A.V. AU Mikhailov, A.N. AU Sheiko, E.A. PY 2026 IS 2026 PB Bryansk State Technical University