The results of gas dynamic and strength improvement of turbocharger TK-32 axial turbine

Abstract


The results of strength and gas dynamic improvement of turbocharger TK-32 axial turbine are presented. Turbocharger is used as unit boost for diesel locomotive. The aim of this work was to ensure turbine work capacity when rotor speed is increased by 10% without efficiency reduction. The strain-stress state analysis indicated the region of high stresses on rotor blade body. These stresses exceed allowable values when rotor speed was increased.

The variant of peripheral rotor blade section displacement, allowing to reduce the level of stresses by 20%, was found. Gas dynamic calculation showed that variant of rotor blade modernization results in an increase of efficiency by 0.4%.


About the authors

D. A. Kolmakova

Samara State Aerospace University

Author for correspondence.
Email: kolmakova.daria@gmail.com

Russian Federation

Magistrand of the Theory of Engine for Flying Vehicle Department

References

  1. Попов, Г.М. Расчётное изучение структуры потока вблизи втулочного сечения в лопаточном венце осевой турбины [Текст] / Г.М. Попов, О.В. Батурин // Вестн. СГАУ, - 2009. – № 3 (19). – Ч.2. – С. 365-368.

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