Abstract
The article describes the relevance of the application of condition monitoring for turbomachinery in the field of predictive maintenance and presents modern methods of vibration diagnostics that are used by leading companies. This paper discusses the aerodynamic vibration model capable for quantitative diagnostics of blades and vanes, including basic provisions, its validation, and verification of diagnostic techniques based on the model. The model considering the aerodynamic vibration generated by a single compressor (turbine) stage is introduced and a detailed description of the used approach is given. To confirm the main provisions of the aerodynamic vibration model and to verify the model-based diagnostic technique, an experimental study was performed on a test rig. A test unit of a compressor stage of an aircraft engine was used for the experiment. As the seeded faults for diagnostic techniques verification, the blade damages in series of tests were used. To validate the practical applicability of the model, a model-based diagnostic technique was developed based on data from an experimental study with seeded faults. The technique demonstrated effectiveness in identification of blade damages and its quantitative estimation.
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This research was funded by the European Regional Development Fund Project No. 5.1.1.2.i.0/1/22/A/CFLA/001 “Investigation of the application of predictive diagnostics technology for aircraft power plant”.
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Mironov, A., Doronkin, P. (2024). Verification of Vibration Diagnostic Technique for Flow Path of Turbomachines. In: Kabashkin, I., Yatskiv, I., Prentkovskis, O. (eds) Reliability and Statistics in Transportation and Communication. RelStat 2023. Lecture Notes in Networks and Systems, vol 913. Springer, Cham. https://doi.org/10.1007/978-3-031-53598-7_20
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