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Adaptive cuckoo search-extreme learning machine based prognosis for electric scooter system under intermittent fault
Journal article   Open access   Peer reviewed

Adaptive cuckoo search-extreme learning machine based prognosis for electric scooter system under intermittent fault

M. Yu, C. Xiao, H. Wang, W. Jiang and R. Zhu
Actuators, Vol.10(11), Article 283
2021
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Abstract

In this paper, an adaptive Cuckoo search extreme learning machine (ACS-ELM)-based prognosis method is developed for an electric scooter system with intermittent faults. Firstly, bond-graph-based fault detection and isolation is carried out to find possible faulty components in the electric scooter system. Secondly, submodels are decomposed from the global model using structural model decomposition, followed by adaptive Cuckoo search (ACS)-based distributed fault estimation with less computational burden. Then, as the intermittent fault gradually deteriorates in magnitude, and possesses the characteristics of discontinuity and stochasticity, a set of fault features that can describe the intermittent fault’s evolutionary trend are captured with the aid of tumbling window. With the obtained dataset, which represents the fault features, the ACS-ELM is developed to model the intermittent fault degradation trend and predict the remaining useful life of the intermittently faulty component when the physical degradation model is unavailable. In the ACS-ELM, the ACS is employed to optimize the input weights and hidden layer biases of an extreme learning machine, to improve the algorithm performance. Finally, the proposed methodologies are validated by a series of simulation and experiment results based on the electric scooter system.

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Domestic collaboration
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Citation topics
7 Engineering & Materials Science
7.215 Friction & Vibration
7.215.818 Rotating Machinery Diagnostics
Web Of Science research areas
Engineering, Mechanical
Instruments & Instrumentation
ESI research areas
Engineering
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