FORECASTING THE ESTIMATED LIFE OF GTE PARTS BASED ON THE IMPACT OF ANALYTICAL AND OPERATIONAL FACTORS

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Abstract

This paper considers a life analysis method applying to GTE parts and based on low-cycle fatigue endurance of parts with due account of analytical and operational factors. Using life analysis for a disk of the first stage of a low-pressure compressor as an example, it is shown that the current strength factors underestimate calculated cyclic lives over 4 times.

About the authors

Aleksandr V. Pakhomenkov

PJSC «UEC-Saturn»

Author for correspondence.
Email: aleksandr.pakhomenkov@uec-saturn.ru
Lenin Ave., 163., Rybinsk, 152903, Russian Federation

Stanislav A. Bukatyy

Samara National Research University

Email: aleksandr.pakhomenkov@uec-saturn.ru
Moskovskoe shosse, 34, Samara, 443086, Russian Federation

References

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  11. Matveenko, G. P., Porter, A. M., Starozhilov, G. I. and Khokhrin, A. L., JSC"Nauchno-proizvodstvennoe ob"edinenie "Saturn" (2003), Sposob ekspluatatsii dvigatelya [The method of operation of the engine], RU, Pat. №2211442. (in Russian)
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  14. PowerJet (2017), Tekhnicheskaya protsedura № SaM146-PWJ-TEC-PRO-ENG-00070-03 «Metodika proverki sroka sluzhby, ukazannogo v tekhnicheskoy kharakteristike» [Technical procedure No. SaM146-PWJ-TEC-PRO-ENG-00070-03 "Method for checking the service life specified in the technical specifications"], RU. (in Russian)
  15. Pakhomenkov, A.V., Azimov R. A and Bukatyy, S. A. (2017) "Raschetnoe opredelenie resursa osnovnykh detaley gazoturbinnykh dvigateley pri malotsiklovom nagruzhenii" [Calculated determination of the resource of the main parts of gas turbine engines under low-cycle loading], Izvestiya vuzov. Aviatsionnaya tekhnika, Kazan, RU, no. 3, pp. 3-8. (in Russian)
  16. Bukatyy, S. A., Pakhomenkov, A.V., Solntsev, G. A and Bukatyy, A. S. (2018), "Prognozirovanie malotsiklovoy dolgovechnosti detaley gazoturbinnogo dvigatelya metodom ekvivalentnykh ispytaniy obraztsov s kontsentratorom napryazheniy pri rastyazhenii-szhatii "[Forecasting of low-cycle durability of gas turbine engine parts by the method of equivalent tests of samples with a stress concentrator under tension-compression], Bulletin of the Samara University. Aerospace engineering, technology and mechanical engineering, Samara, RU, Vol. 17, No. 2, pp. 37-46. (in Russian)

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