2016, 03 March | |
DOI: 10.14489/td.2016.03.pp.034-038
Posadov V.V. (jr.), Posadov V.V., Remizov A.E. Abstract. When operating a gas turbine engine, the aerodynamic and aeroelastic vibrations (rotating stall and flutter respectively) can occur in a compressor on some special conditions. This paper is based on a research of informative diagnostic parameters. The engine tests were performed on the test bench with a crosswind generator. During the tests the insensitivity of the fan blades to the flutter was analyzed in the wide range of operational modes. The limits of the gasdynamic stability were also determined. The algorithms of aerodynamic and aeroelastic vibrations diagnostics were developed based on the research. One of the algorithms uses damping parameters to perform diagnostics of aerodynamic and aeroelastic vibrations. Another is based on a parameter with high sensitivity to changes in the technical condition of the gas turbine engine parts. Keywords: gas turbine engine, fan, diagnostics, flutter, rotating stall, damping, coefficient of excess.
V. V. Posadov (jr.), V. V. Posadov JSC “NPO “Saturn”, Rybinsk, Russia. E-mail: vladimir.posadov@gmail.com A. E. Remizov
1. Posadov V. V., Posadov V. V., Eremin A. A., Remizov A. E. (2013). Study the nature of stall flutter of rotor of aircraft gas turbine engine compressor. Proceedings of the Internaional scientific and technical conference «Klimov’s readings – 2013». St. Petersburg, pp. 110-118.
This article is available in electronic format (PDF). The cost of a single article is 350 rubles. (including VAT 18%). 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 fill out the form below:
|