TOOTH HARMONICS IN THE VIBRATION DIAGNOSTICS OF GEAR TOOTH WEAR IN A GAS TURBINE ENGINE


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Abstract

Vibration diagnostics in the most effective non-destructive method for testing technical condition of rotor machines. A widely used diagnostic indicator of gear defects is the intensity of the n-dimensional vector from a series of tooth harmonics. For planetary gearboxes of aircraft engines, the higher harmonics intensity is often commensurate with the vibration noise intensity, which reduces the effectiveness of its application. On the example of the tooth flank wear in NK-12 engine differential gearbox, we have demonstrated the possibility of diagnosing this defect based on the intensity of tooth subharmonics.

About the authors

A. E. Sundukov

Turbina SK, LLC

Author for correspondence.
Email: sunduckov@mail.ru
Russian Federation, Finskaya st. 96, of.1, Samara, 443011, Russian Federation

E. V. Shakhmatov

Samara National Research University (Samara University)

Email: shakhm@ssau.ru
Russian Federation, 34, Moskovskoye shosse, Samara, 443086, Russian Federation

References

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Copyright (c) 2022 Sundukov A.E., Shakhmatov E.V.

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Journal of Dynamics and Vibroacoustics

ISSN 2409-4579 (Online)

Publisher and Founder: Samara National Research University, 34, Moskovskoye shosse, Samara, 443086, Russian Federation.

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Editor-in-chief:  Academician of the RAS
E. V. Shakhmatov 

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