10.14489/td.2025.02.pp.053-058

2025, 02 Februar

DOI: 10.14489/td.2025.02.pp.053-058

Saitkulov V. G., Teplyakov A. A., Ziganshin R. V.
THE INFLUENCE OF THE WELDED JOINT AREA OF THE BLADE ON THE NATURAL FREQUENCIES OF THE BLADE FEATHER OF A GAS TURBINE ENGINE
(pp. 53-58)

Abstract. The paper studies the possibility of using the acoustic method of non-destructive testing to assess the quality of the welded joint of the blades to the disk of a turbomachine. Blades, which are an important element of turbines, are subject to intense temperature and mechanical loads, which requires careful quality control at all stages of their production. The study considers the natural frequencies of the blades as an indicator of the quality of the weld. Finite element modeling and experimental studies were carried out, which confirmed the dependence of the natural frequencies of the blade on the area of the welded joint. The results show that the acoustic method can be effectively used to detect defects in welded joints of turbine blades, ensuring high reliability of testing.

Keywords: acoustic testing, non-destructive testing, natural frequencies, blade, turbomachine disk, laser welding, gas turbine engine, turbomachine.

+ - About the Authors Click to collapse

V. G. Saitkulov, A. A. Teplyakov, R. V. Ziganshin (Federal State Budgetary Educational Institution of Higher Education “Kazan National Research Technical University named after A. N. Tupolev – KAI”, Kazan, 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.

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