10.14489/td.2023.06.pp.050-055

2023, 06 June

DOI: 10.14489/td.2023.06.pp.050-055

Popov A. V., Krylov A. A., Vostrikov M. E.
MODELS FOR ASSESSING THE PRESENCE OF DEFECTS IN BEARING SUPPORTS OF AIRCRAFT GAS TURBINE ENGINES
(pp. 50-55)

Abstract. Increasing the level of reliability of aviation equipment is quite relevant, but at the same time a difficult task. Aircraft engines (AD) are removed from operation every year if they have not exhausted their established resources and service life. As a rule, the reasons for early termination of operation are defects and malfunctions of individual engine components, their mechanical damage, as well as human errors that lead to a malfunction of the engines. From the performed analysis of the causes of failures and damages of the engines of operational-tactical aviation aircraft, it can be concluded that in the vast majority of cases, the failures manifested themselves in increased vibration, which indicated the destruction of the bearing supports of the compressor and turbine rotors, the failure of which may lead to shutdown and damage to the gas turbine engine. Such consequences adversely affect flight safety and can lead to both the loss of the aircraft and the death of the crew. The specifics of the placement of the bearing supports of the GTE rotors greatly complicates their diagnostics in the framework of non-destructive testing. New models are proposed for assessing the presence of defects in the bearing supports of the rotors of aircraft gas turbine engines, based on the analysis of vibroacoustic signals in the frequency and time domains. A software and hardware complex has been created that allows diagnosing the technical condition of the bearing supports of the rotors of aircraft gas turbine engines.

Keywords: vibroacoustic diagnostics, gas turbine engine, defect, technical condition, bearings, aviation equipment.

+ - About the Authors Click to collapse

A. V. Popov, A. A. Krylov, M. E. Vostrikov (Military training and scientific center of the air force “Air force Academy named after Professor N. E. Zhukovsky and Yu. A. Gagarin”, Voronezh, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Popov A. V., Legkonogih D. S., Vostrikov M. E. (2023). A method for vibroacoustic diagnostics of bearing supports of rotors of gas turbine engines based on fractal analysis. Kontrol'. Diagnostika, Vol. 26 (1), pp. 14 – 21. [in Russian language]
2. Aksenov S. P., Zvonarev S. L., Zubko A. I., Netsvet V. A. (2018). Features of a doublecircuit gas turbine engine as an object of diagnosis. Nasosy. Turbiny. Sistemy, 26(1), pp. 16  24. [in Russian language]
3. Bigus G. A., Daniev Yu. F., Bystrova N. A., Galkin D. I. (2014). Diagnostics of technical devices. Moscow: Izdatel'stvo MGTU im. N. E. Baumana. [in Russian language]
4. Vibrometer diagnostic "VADIM". (1990). Operation manual RE No. 4277-028-00205435-01. Moscow: OOO Nauchno-proizvodstvennoe predpriyatie «Vi-Kont». [in Russian language]
5. Klyuev V. V. (Ed.), Balitskiy F. Ya., Barkov A. V., Barkova N. A. (2006). Non-destructive testing: reference book: in 8 volumes. Vol. 7: in 2 books. Book 2. Vibrodiagnostics. 2nd ed. Moscow: Mashinostroenie. [in Russian language]
6. Krylov A. A., Vostrikov M. E. (2022). Technique of vibroacoustic diagnostics of aircraft engine bearings. Vestnik RGATU, 61(2), pp. 7 – 10. [in Russian language]
7. Vostrikov M. E. Method for vibroacoustic diagnostics of the technical condition of the interrotor bearing of a two-shaft gas turbine engine. Ru Patent No. 2789570. Russian Federation. [in Russian language]

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

The cost of a single article is 500 rubles. (including VAT 20%). After you place an order within a few days, you will receive following documents to your specified e-mail: account on payment and receipt to pay in the bank.

After depositing your payment on our bank account we send you file of the article by e-mail.

To order articles please copy the article doi:

10.14489/td.2023.06.pp.050-055

and fill out the form