10.14489/td.2019.03.pp.034-037

2019, 03 March

DOI: 10.14489/td.2019.03.pp.034-037

Posadov V. Vl. (jr.), Bezrukov L. A., Posadov V. V., Bagrov S. V.
MONITORING OF ELASTIC AND MASS CHARACTERISTICS OF BLADES OF GAS TURBINE ENGINE AS AN APPROACH TO REDUCE VIBRATION STRAIN AND TO PROVIDE STABILITY TO FLUTTER
(pp. 34-37)

Abstract. This paper is about research of efficiency of design methods oriented to ensure stability of row of blades of gas turbine engine to flutter, reduction of vibration strain of blades. Reduction of flexure-torsion coupling of blades is achieved by buckling of airfoil and redistribution of its mass to converge center of mass and center of rigidity for each cross-section of the blade. Proposed methods and results of CAE research can be useful for specialists involved with design and strength tuning of gas turbine engines.

Keywords: monitoring of elastics and mass characteristics, gas turbine engine, blade, vibration strain, stability to flutter, frequency of oscillations, flexure-torsion coupling.

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V. V. (jr.) Posadov, L. A. Bezrukov, V. V. Posadov, S. V. Bagrov (JSC “UEC-Saturn”, Rybinsk, 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. , Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Posadov V. V. (jr.), Posadova V. V., Bagrov S. V. (2017). Control of the elastic mass characteristics of the blade of the gas turbine engine in order to increase resistance to flutter. Kontrol'. Diagnostika, (2), pp. 48-52. [in Russian language] DOI: 10.14489/td.2017.02.pp.048-052
2. Avgustinovich V. G., Shmotin Yu. N., Sipatov A. M. et al. (2005). Numerical simulation of non-stationary phenomena in gas turbine engines. Moscow: Mashinostroenie. [in Russian language]
3. Posadov V. V. (2015). Providing resistance to the flutter of working blades of an aircraft gas turbine engine. International Technology Forum “Innovations. Technology. Production”: a collection of materials of the scientific and technical conference dedicated to the 100th anniversary of the chief designer P. A. Kolesov, Vol. 2, pp. 14-18. Rybinsk: RGATU. [in Russian language].

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