Fulfilled R&D projects

Finite element modeling and modal analysis of the gas turbine unit turbocompressor

Industry:
Programs in use ANSYS

Vibration analysis of the gas turbine turbocompressor is carried out. Modal FE analysis is performed with use of ANSYS 5.6 in order to offset from resonance frequencies.

Main components of the turbocompressor that are included into 3D FE model are: compressor casing, combustion chamber casing, stiffening ribs, rotor containing 15 stages of compressor and 4 stages of gas turbine.

3D FE model contains 210312 DOF, elements SOLID95, COMBIN14, SHELL93 and BEAM4.

ANSYS FE model ANSYS FE model
First natural mode shape of the gas turbine turbocompressor 

​First natural mode shape of
the gas turbine turbocompressor
First natural mode shape of the gas turbine turbocompressor. 

First natural mode shape of
the gas turbine turbocompressor.
Fragment. Left bearing
Second natural mode shape of the gas turbine turbocompressor 

Second natural mode shape of
the gas turbine turbocompressor
First natural mode shape of the gas turbine turbocompressor. 

First natural mode shape of
the gas turbine turbocompressor.
Fragment. Right bearing

 

Tenth natural mode shape shape of the gas turbine turbocompressor 
Tenth natural mode shape shape of
the gas turbine turbocompressor

Other materials on topic:
Turbomachinery