EFFICIENCYOFCOOLINGANDGASTURBINEBLADESDURABILITY

Authors

  • Б. С. Карпінос
  • В. М. Куліш

DOI:

https://doi.org/10.18372/2310-5461.25.8220

Keywords:

cooled turbine blades, turbine

Abstract

Results of numerical modeling of unsteady thermal and thermostress problems of gas turbine blade model states are represented in this work.It was shown, that efficiency of dangerous blade zones modelling by means of controlled local heat transfer conditions on the surfaces of the model.There were established dependences between local temperatures and thermal stresses for the simultaneous random change of heat transfer boundary conditions for the model or for the blade. It is shown, the influence of this relationship on each thermal source can be represented by simple linear dependence with corresponding poles.An optimization method of thermocycle durability of gas turbine elements was proposed, which is based on the relation between the efficiency of blades cooling and their thermal stress stateand onthe experimental results of blade material thermal fatigue for the different temperatures.

References

Карпінос Б. С. Адоптація пакету SolidWorks — COSMOSWorks для розв’язку задач моделювання термонапружених станів охолоджуваних лопаток газових турбін / Б. С. Карпінос, В. М. Куліш // Наукоємні технології. — 2012. — №2(14). — С. 22–26.

Копелев С. З. Охлаждаемые лопатки газовых турбин. Тепловой расчет и профилирование / С. З. Копелев. — М. : Наука, 1983. —146 с.

Репухов В. М. Тепловая защита стенки вдувом га-за / В. М. Репухов. — К. : Наук. думка, 1977. — 216 с.

Биргер И. А. Термопрочнсть деталей машин / И. А Биргер; под ред. И. А. Биргера, Б. Ф. Шорра. — М. : Машиностроение, 1975. — 456 с.

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Published

2015-03-20

How to Cite

Карпінос, Б. С., & Куліш, В. М. (2015). EFFICIENCYOFCOOLINGANDGASTURBINEBLADESDURABILITY. Science-Based Technologies, 25(1), 21–26. https://doi.org/10.18372/2310-5461.25.8220

Issue

Vol. 25 No. 1 (2015)

Section

Air transport operations

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