Deep Reinforcement Learning-Guided Adaptive Feature Extraction with Transformer Classification for Variable Speed Bearing Fault Diagnosis
编号:78访问权限:仅限参会人更新:2025-06-26 15:37:47浏览:125次口头报告
报告开始:暂无开始时间(Asia/Shanghai)
报告时间:暂无持续时间
所在会场:[暂无会议] [暂无会议段]
暂无文件
提示
无权点播视频
提示
没有权限查看文件
提示
文件转码中
摘要
The inherent non-stationarity of vibration signals from variable-speed rotating machinery poses significant challenges for traditional bearing fault diagnosis methods. This paper proposes a novel framework that synergistically integrates Deep Deterministic Policy Gradient (DDPG) optimization with an Adaptive Multi-scale Feature Extraction Network (AMFEN), self-attention mechanism and Transformer-based classification to address these challenges. The proposed methodology employs DDPG to adaptively optimize Vold-Kalman filter parameters for robust signal decomposition, eliminating the need for manual parameter tuning. Subsequently, 5 parallel AMFEN strategies extract complementary features from multiple domains, capturing comprehensive fault characteristics. A self-attention mechanism then intelligently selects the most discriminative features, reducing the dimensionality from 320 to 48 while preserving diagnostic information. Finally, a Transformer model performs fault classification, leveraging its superior capability in capturing feature dependencies and temporal patterns. Experimental validation on BGCF dataest demonstrates the framework's superior performance, achieving 97% diagnostic accuracy under variable speed conditions.
发表评论