韩宁, 李国富, 任潞. Application of Improved HPO Optimized VMD and GRU Method in Tool Wear State Recognition[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(11): 1912-1918.
韩宁, 李国富, 任潞. Application of Improved HPO Optimized VMD and GRU Method in Tool Wear State Recognition[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(11): 1912-1918. DOI: 10.13433/j.cnki.1003-8728.20230357.
In order to improve the accuracy of the tool wear state identification during machining
a recognition model based on improved Hunter-prey optimizer (HPO)
variational mode decomposition (VMD) and gated recurrent unit (GRU) neural network is proposed in this paper. Firstly
the HPO improved by Tent chaos and Levy flight strategy was used to optimize VMD to determine the best combination of the decomposition layers and the penalty factor. Then
the features of the original current signal and the decomposed signal are extracted and the kernel principal component analysis (KPCA) method is used to reduce the feature dimension. Finally
the dimensionality reduction features were input into the Gated Recurrent Unit (GRU) neural network model to realize the recognition of tool wear states. The experimental results show that the recognition model proposed in this paper has higher recognition accuracy and efficiency than other models