2 / 2025-03-06 20:35:44
Unsupervised Domain-Adaptive Fault Diagnosis of Bearings Driven by Dynamic Simulation Data
dynamics simulation, fault diagnosis, joint distributional adaptation, deep adaptive transfer learning
全文待审
Chaoge Wang / Shanghai Maritime University
Xiaofeng Liang / Shanghai Maritime University
Yuming Wang / Shanghai Maritime University
Xinyu Tian / Shanghai Maritime Universit
Xiaojing Tang / Shanghai Maritime University

In practical engineering scenarios for rolling bearing fault diagnosis, physical sensing limitations often result in incomplete or insufficient real-world data acquisition, posing significant challenges to accurate fault identification. To address this issue, this study proposes an intelligent fault diagnosis method for rolling bearings based on kinetics simulation data. First, a geometric model of the bearing is constructed using SolidWorks and imported into Adams to establish a dynamic simulation model, generating comprehensive simulation datasets. Subsequently, a Deep Adaptive Representation Transfer (DART) learning framework is developed, where simulation data serves as the source domain and limited measured data as the target domain. An Improved Joint Distribution Adaptation (IJDA) mechanism is innovatively introduced to align marginal and conditional distributions between domains, significantly enhancing domain adaptability. Additionally, the I-Softmax loss function is incorporated to improve feature separability. Experimental validation on a rolling bearing test rig demonstrates that the proposed DART method achieves high diagnostic accuracy even with limited target domain samples, confirming its feasibility and practical advantages under physical sensing constraints.

重要日期
  • 会议日期

    08月01日

    2025

    08月04日

    2025

主办单位
中国机械工程学会设备智能运维分会
承办单位
新疆大学
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