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16 July 2002 Methods of detection of changes of complex machinery states
Anna Timofiejczuk
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Proceedings Volume 4733, Component and Systems Diagnostics, Prognostics, and Health Management II; (2002) https://doi.org/10.1117/12.475501
Event: AeroSense 2002, 2002, Orlando, FL, United States
Abstract
The paper deals with methods of interpretation of features of vibration signals, which make it possibly to detect changes of these features. Considered signals are mainly recorded during varying conditions of rotating machinery. Signal features are coded in matrices that are similar to image data. Matrix is considered as dynamic scene and signal features are treated as that scene objects. These methods make it possible to identify variability of features that are strictly related to changes of technical state of the machinery. Scene analysis may be carried out with the use of methods of image analysis. Examples of these methods are lines detection or syntactic description. There is also an example of application of technical state observers.
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Anna Timofiejczuk "Methods of detection of changes of complex machinery states", Proc. SPIE 4733, Component and Systems Diagnostics, Prognostics, and Health Management II, (16 July 2002); https://doi.org/10.1117/12.475501
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KEYWORDS
Diagnostics
Image analysis
Matrices
Signal detection
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