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Guntanur, R and Patel, A and Biradar, V and Kumar, P (2021) COUPLED THERMAL-STRUCTURAL ANALYSIS of GENERATOR for sCO2 TURBOMACHINERY. In: ASME 2021 Gas Turbine India Conference, GTINDIA 2021, 2-03 Dec 2021, Virtual, Online.

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Official URL: https://doi.org/10.1115/GTINDIA2021-76451


This paper presents the coupled thermal and structural analysis of the rotating components of the generator using ABAQUS finite element solver. The interference between shaft and rotor is optimized to have a positive contact pressure and also minimize the stresses in the laminate at all operating speeds. Thermal analysis is performed to simulate the temperature distribution arising from the heat losses of generator. The flow path of the coolant is designed through the shaft to minimise the temperature rise of the generator. The resulting changes in the contact pressure between laminated disc and shaft is computed using sequentially coupled thermal and structural analysis. The thermal stresses of rotor are computed estimated and the design is optimized for transmitting torque at different operating speeds. © 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: ABAQUS; Structural analysis; Thermoanalysis, Centrifugal loads; Contact pressures; Coupled thermal and structural; Coupled thermal-structural; Generator; Interference fit; Operating speed; Sco2 turbomachinery; Thermal and structural analysis; Thermal-structural analysis, Thermal stress
Department/Centre: Division of Interdisciplinary Sciences > Interdisciplinary Centre for Energy Research
Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 24 Jan 2022 06:12
Last Modified: 24 Jan 2022 06:12
URI: http://eprints.iisc.ac.in/id/eprint/71049

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