An image recognition method for gear fault diagnosis in the manufacturing line of short filament fibres

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Authors

Jin, Shoufeng
Fan, Di
Malekian, Reza
Duan, Zhihe
Li, Zhixiong

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Publisher

British Institute of Non-destructive Testing

Abstract

The manufacturing line is a fundamental element in short filament fibre production, in which the gearbox is the key mechanical part. Any faults in the gearbox will greatly affect the quality o f the short filament fibres. However, due to the harsh working environment, the gearbox is vulnerable to failure. Due to the complexity o f the manufacturing line, effective and efficient feature extraction o f gear faults is still a challenge. To this end, a new fault diagnosis method based on image recognition is proposed in this paper for gear fault detection in fibre manufacturing lines. In this method, wavelet packet bispectrum analysis (WPBA) is proposed to process the gear vibration signals. The bispectrum texture is obtained and then analysed by an image fusion algorithm for texture feature extraction. The grey-level co-occurrence matrix is used in the image fusion and the extracted texture features are four parameters o f the grey-level co-occurrence matrix. Finally, a support vector machine (SVM) is adapted to recognise the gear fault type and location. Experimental data acquired from a real-world manufacturing line o f short filament fibres are used to evaluate the performance o f the proposed image-based gear fault detection method. The analysis results demonstrate that the newly proposed method is capable o f accurate gear fault detection in fibre manufacturing lines.

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Keywords

Filament fibre, Manufacturing line, Gear fault diagnosis, Wavelet packet bispectrum analysis, Image fusion

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Citation

Jin, S., Fan, D., Malekian, R. et al. 2018, 'An image recognition method for gear fault diagnosis in the manufacturing line of short filament fibres', Insight - Non-Destructive Testing and Condition Monitoring, vol. 60, no. 5, pp. 270-275.