Author:
Popov G M,Zubanov V M,Baturin O V,Scherban A I
Abstract
Abstract
The paper presents the results of the linked multidisciplinary optimisation of a single-stage 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 in-house developed programmes. 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.