Open AccessAnalysis of Geared Turbofan Engine Transmission on Operational and Breakdown Overloads
Author(s) -
M. J Temis,
A. Egorov
Publication year - 2015
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-67095
Subject(s) - turbofan , finite element method , rotor (electric) , stiffness , beam (structure) , reduction (mathematics) , structural engineering , engineering , mechanical engineering , automotive engineering , geometry , mathematics
Investigation of double-circuit geared turbofan engine (GTF) transmission dynamics for flight cycle loads was carried out. Flight cycle loads taking into account overloads at evolutions. Comparative analysis for response of engine models without load reduction device and with load reduction device fracture on fan blade fracture is performed. As basic GTF assembly the assembly presented in most of opensources is taken. For investigation the beam and solid models were developed. Both models contain of fan rotor, gear and low pressure rotor. Special finite element are used in beam model for simulation of stiffness characteristics of complex geometry rotor elements. Stiffness characteristics of beam model are verified with assistance of solid model.