wuyou33/adaespgl

Source codes for paper "Enhanced sparse period-group lasso for bearing fault diagnosis"

AdaESPGL

This repository contains the implementation details of our paper: [IEEE Transactions on Industrial Electronics] "Enhanced sparse period-group lasso for bearing fault diagnosis" by Zhibin Zhao.

About

Bearing faults are one of the most common inducements for machine failures. Therefore, it is very important to perform bearing fault diagnosis reliably and rapidly. However, it is fundamental but difficult to extract impulses buried in heavy background noise for bearing fault diagnosis. In this paper, a novel adaptive enhanced sparse periodgroup lasso (AdaESPGL) algorithm for bearing fault diagnosis is proposed. The algorithm is based on the proposed enhanced sparse group lasso penalty, which promotes the sparsity within and across groups of the impulsive feature of bearing faults. Moreover, a periodic prior is embedded and updated dynamically through each iteration of the optimization procedure. Additionally, we formed a deterministic rule about how to set the parameters adaptively. The main advantage over conventional sparse representation methods is that AdaESPGL is parameter free (forming a deterministic rule) and rapid (extracting the impulsive information directly from the time domain). Finally, the performance of AdaESPGL is verified through a series of numerical simulations and the diagnosis of a motor bearing. Results demonstrate its superiority in extracting periodic impulses in comparison to other state-of-the-art methods.

Dependencies

• Matlab R2016b

Pakages

This repository is organized as:

• funs contains the main functions of the algorithm.
• util contains the extra functions of the test.
• Results contains the results of the algorithm. In our implementation, Matlab R2016b is used to perform all the experiments.

Implementation:

Flow the steps presented below:

• Clone this repository.

git clone https://github.com/ZhaoZhibin/AdaESPGL.git
open it with matlab

• Test Simulation: Check the parameters setting of simulation in Config.m and run Test_simulaton.m.

Citation

If you feel our AdaESPGL is useful for your research, please consider citing our paper:

@article{zhao2018enhanced,
  title={Enhanced sparse period-group lasso for bearing fault diagnosis},
  author={Zhao, Zhibin and Wu, Shuming and Qiao, Baijie and Wang, Shibin and Chen, Xuefeng},
  journal={IEEE Transactions on Industrial Electronics},
  volume={66},
  number={3},
  pages={2143--2153},
  year={2018},
  publisher={IEEE}
}

Contact

• [email protected]