Application of Improved HPO Optimized VMD and GRU Method in Tool Wear State Recognition

韩宁; 李国富; 任潞

doi:10.13433/j.cnki.1003-8728.20230357

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Application of Improved HPO Optimized VMD and GRU Method in Tool Wear State Recognition

更新时间：2026-04-23

- Application of Improved HPO Optimized VMD and GRU Method in Tool Wear State Recognition
- Mechanical Science and Technology for Aerospace Engineering Vol. 44, Issue 11, Pages: 1912-1918(2025)
- 作者机构：
  
  宁波大学机构机械工程与力学学院,浙江,宁波,315211
- 作者简介：
- 基金信息：
- DOI：10.13433/j.cnki.1003-8728.20230357
  CLC：
- Published：2025
- 稿件说明：
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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：

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.

摘要

为提高车刀在加工过程中的磨损状态识别精度，提出了一种基于改进猎人猎物算法(Hunter-prey optimizer

HPO)、变分模态分解（Variational mode decomposition

VMD）及门控循环单元(Gated Recurrent Unit

GRU)的识别模型。首先，采用Tent混沌和Levy飞行策略改进的猎人猎物算法优化VMD确定分解层数和惩罚因子的最佳组合。其次，对原始电流信号及分解后的信号进行特征提取，并通过核主成分分析法（Kernel principal component analysis

KPCA）进行特征降维。最后，将降维后的特征输入GRU神经网络模型实现刀具磨损状态的识别。实验结果表明，所提出的识别模型与其他模型相比具有更高的识别精度和效率，且具有较高的泛用性。

Abstract

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

and has higher universality.

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Related Institution

School of Automation and Information Engineering, Xi'an University of Technology

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Inner Mongolia First Machinery Group Co., Ltd., Precision Equipment Maintenance and Installation Company

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