Coupled multidisciplinary optimization of a twin-shaft turbine of a promising turboshaft en- gine

Authors

  • Popov Grigory Mikhailovich Samara National Research University
  • Zubanov Vasily Mikhailovich Samara National Research University
  • Melnikov Sergey Alexandrovich Samara National Research University
  • Shcherban Anastasia Ivanovna Samara National Research University

Keywords:

axial turbine, parameterization, multidisciplinary optimization, strength, efficiency

Abstract

The paper presents the results of the linked multidisciplinary optimisation of a singlestage turbine of a compressor and a single-stage free turbine of a promising turboshaft engine. In the process of optimisation, gas dynamic, strength, design and technological constraints were taken into account. Calculation of gas dynamic parameters was performed using 3D CFD modelling. Calculation of strength parameters was performed using 3D CSM modelling. Analysis of geometrical parameters of blade profiles was performed using programmes developed in-house. The geometrical parameters of the blade profiles were used as varied parameters. The total number of varying parameters was 194. As a result of solving the optimisation task, a turbine variant was found with the compressor turbine efficiency 0.32 % higher than that of the original turbine, as well as with the efficiency of the free turbine 0.7 % higher than that of the original one. At the same time the fulfilment of all constraints is ensured. doi 10.54708/19926502_2024_28310572

Author Biographies

Popov Grigory Mikhailovich, Samara National Research University

Candidate of Science (Engineering), Associate Professor of the Department of Aircraft Engine Theory; Samara National Research University, Samara, Russian Federation

Zubanov Vasily Mikhailovich, Samara National Research University

Candidate of Science (Engineering), Associate Professor of the Department of Aircraft Engine Theory; Samara National Research University, Samara, Russian Federation

Melnikov Sergey Alexandrovich, Samara National Research University

Postgraduate student of the Department of Aircraft Engine Theory; Samara National Research University, Samara, Russian Federation

Shcherban Anastasia Ivanovna, Samara National Research University

Engineer of the Department of Aircraft Engine Theory; Samara National Research University, Samara, Russian Federation.

Published

2025-08-01

Issue

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