Patel, A and Biradar, V and Kumar, P (2021) HARMONIC ANALYSIS of the HIGH SPEED DIRECT COUPLED SCO2 TURBOGENERATOR. In: ASME 2021 Gas Turbine India Conference, 2-3 Dec 2021, Virtual, Online.
Full text not available from this repository.Abstract
The rotordynamics and harmonic characteristics of the rotor assembly designed for 40-kW high-speed sCO2 directcoupled turbo-generator pair have been evaluated numerically using finite element solver ANSYS Mechanical. First, the shaft geometry and dimensions have been optimized using lumped mass-inertia-based AxSTREAM RotorDynamics module followed by the bearing selection analysis using SKF SimPro expert to ensure enough separation margin from the nearby critical speeds. Equivalent 2D geometry has been used with an FEA-based ANSYS general axisymmetric model to reduce the computation time. The effect of the damping on the forces transmitting to the bearings and shaft deflection at the critical speeds are analyzed by performing harmonic analysis under various damped and undamped conditions ( = 0, 0.005, 0.01, and 0.02). © 2021 by ASME.
| Item Type: | Conference Paper |
|---|---|
| Publication: | Proceedings of ASME 2021 Gas Turbine India Conference, GTINDIA 2021 |
| Publisher: | American Society of Mechanical Engineers (ASME) |
| Additional Information: | The copyright for this article belongs to American Society of Mechanical Engineers (ASME) |
| Keywords: | Finite element method; Speed; Turbogenerators, Critical speed; Direct coupled; Finite element analyse; Flexible rotors; Harmonic characteristics; High Speed; High-speed turbomachinery; Rotor assembly; Rotor dynamic analysis; Rotordynamic characteristics, Harmonic analysis |
| Department/Centre: | Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 27 Jan 2022 11:49 |
| Last Modified: | 27 Jan 2022 11:49 |
| URI: | http://eprints.iisc.ac.in/id/eprint/71053 |
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