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- Title
Application of Cascaded Stochastic Resonance to Performance Evaluation of Aero-engine.
- Authors
Zhang Ying; Liao Heng-Yu; Zhao Ge
- Abstract
Analysis of the rotor system vibration can provide some bases for health evaluation, as an important part of the aero-engine health management. To promote the extraction accuracy of vibration information, cascaded bistable system was introduced into the investigation of the aero-engine high and low pressure rotors. The cascaded stochastic resonance proves to be the preprocessor for health evaluation, which weakens the high-frequency dithering of the waveform merged by noise and outlines the basic shape. The application to the four double-spool engines of an airplane has indicated the cascaded stochastic resonance technique is effective to reflecting the real vibration features of the aero-engine rotor systems, helping to estimate the condition of different aero-engines and sort them, especially while the vibration signals were mixed up easily with similar values.
- Subjects
AIRPLANE motors; ENGINE maintenance &; repair; STOCHASTIC resonance
- Publication
Metallurgical & Mining Industry, 2016, Issue 1, p109
- ISSN
2076-0507
- Publication type
Article