Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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DYNAMIC BEHAVIOR ANALYSIS OF A LOW-PRESSURE TURBINE WHEEL OF AN AIRCRAFT ENGINE

Kukhtinskiy A.E. 1 Limonova V.M. 2 Maksimov P.V. 1
1 Perm national research polytechnic university
2 AVIADVIGATEL Stock Company
The problem of dynamic behavior analysis of a low-pressure turbine wheel of an aircraft engine is solved. Computation of natural frequencies and modes is carried out in CAE-software – ANSYS. The problem is solved in 3D formulation assuming all materials are elastic. Computation includes prestress effects. Cyclic symmetry analysis is performed to get results for the whole turbine wheel while computing only single disk sector with one blade. A set of programs is developed in MATLAB to analyse results obtained from ANSYS. Dispersion and resonant diagrams are plotted. Resonant modes are identified for ranges under consideration. Disk modes are detected and distribution of dynamic stresses is performed for these modes. It allows to get necessary data for future experimental research.