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Abstract:
ABSTRACT The invention relates to a planetary gearbox fault diagnosis method. First of all, the signal is decomposed and reconstructed by using the Salp Swarm Optimization algorithm to optimize the Variational Mode Decomposition algorithm (SSO-VMD). Then, the fault features are extracted from multiple domains, and the improved supervised self-organizing incremental learning neural network landmark point isometric mapping (ISSL-Isomap) manifold learning algorithm is used to reduce the dimensionality. Finally, the Artificial Bee Colony Optimization Support Vector Machine (ABC-SVM) classifier is used for diagnosis and recognition. The invention overcomes the problem of parameter selection in the VMD algorithm and solves the problem of information redundancy existing in multi-domain features. The experimental results of the planetary gearbox fault diagnosis show that the proposed method can effectively identify the types of faults and has great practical value. 1/7 FIGURES vibration acceleration signals SSO-VMD decomposition andi reconstruction timle-domint, frequency-domain scale-domain construct multi-dimensional fault features set se SSL-Isomap to perform dimensionality reduction low-dimensional features set of trainngsamnpless low-dlimei nsional features set of test saimples set train ABC-SVM classifier trained ABC-SVM classifier model diagnose fault type Figure 1 0 01 Normal 0 00 0.01 ' 0.00 0.05 010 0.15 0.20 times 0.05 1 Wear 0.00 IIII 0.0 .00 0.05 010 015 020 time/s Crack 0. 00 S 0.02----- 0 0.00 0.05 0.10 0.15 0.20 time/s 0. 0 2 - hI. -l...L.L.d uAJ a 16 uw L.. Brokenteeth 0.00 0.02 0.00 0.05 0.10 0.15 0.20 times Figure 2
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Patent Info :
Type: 实用新型
Patent No.: AU2021105779
Filing Date: 2021-08-18
Publication Date: 2021-10-21
Pub. No.: AU2021105779A4
公开国别: AU
Applicants: Fuzhou;University
Legal Status: 授权
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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