TFDFNet:在杂和复杂的工业环境下用于轴承的双分支故障诊断模型
1School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China.
Scientific reports
|October 9, 2025
概括
一个新的深度学习模型,时间频率和时间序列双分支融合网络 (TFDFNet),增强了旋转机械故障诊断. TFDFNet在噪音条件下实现了高精度,提高了工业安全,减少了停机时间.
科学领域:
- 工程 工程师 工程师 工程师
- 人工智能的人工智能
- 信号处理 信号处理
背景情况:
- 旋转机械的故障会导致大量的工业停机时间和安全风险.
- 准确的故障诊断至关重要,但由于弱,噪音信号具有挑战性.
- 现有的方法与复杂的,现实世界的工业环境作斗争.
研究的目的:
- 引入一种新的深度学习模型,TFDFNet,用于在旋转机械中进行可靠的故障诊断.
- 在杂和复杂的条件下提高故障分类准确性.
- 提高智能故障诊断系统的可靠性.
主要方法:
- 开发了一个双分支深度学习网络 (TFDFNet),集成时间频率和时间序列数据.
- 使用Swin变压器用于时间频率图像特征提取.
- 采用一个有门的注意力区块 (GABlock) 来从序列数据中学习时间模式.
- 使用交叉注意力机制的融合特征.
主要成果:
- 在轴承故障数据集 (CWRU和太华) 中,TFDFNet取得了卓越的准确性.
- 在CWRU上达到高达100%的准确性,在太华上达到99.44%,即使有严重的噪音.
- 始终表现优于基线卷积神经网络 (CNN) 模型.
结论:
- TFDFNet在智能故障诊断方面表现出卓越的性能和稳定性.
- 该模型的处理噪声的能力使其适合于现实世界的工业应用.
- TFDFNet为减少停机时间和提高工业系统安全提供了实际潜力.
相关概念视频
Bearings: Problem Solving
476
Understanding the calculations and concepts related to double-collar bearings is essential for engineers and designers to optimize the performance of these components in various applications. By analyzing the bearing under different conditions, one can ensure that it can withstand the forces and moments experienced during operation. This knowledge enables better decision-making when designing and selecting bearings for specific purposes and configurations. Consider a double-collar bearing with...
476
Journal Bearings
1.1K
Journal bearings are mechanical components that support and provide lateral stability to rotating shafts and axles. They are crucial in reducing friction, wear, and vibration in machinery such as engines, turbines, and pumps. The principle behind journal bearings is forming a thin lubricant film between the bearing surface and the rotating shaft, which minimizes direct contact and reduces frictional forces.
To better understand the concept of journal bearings, consider a rope winch with dry or...
To better understand the concept of journal bearings, consider a rope winch with dry or...
1.1K
Pivot Bearings
2.1K
In mechanical systems, bearings are crucial in facilitating relative motion between two components while minimizing friction and wear. They help distribute various loads (radial, axial or a combination of both loads) across machinery parts, ensuring smooth and efficient operation.
A pivot bearing is a specialized type of bearing designed to support axial loads on a rotating shaft. The bearing surface, or the pivot, is positioned at the end of a shaft to support the axial thrust. The pivot may...
A pivot bearing is a specialized type of bearing designed to support axial loads on a rotating shaft. The bearing surface, or the pivot, is positioned at the end of a shaft to support the axial thrust. The pivot may...
2.1K
Stresses in a Shaft
830
The shaft PQ is subjected to a twisting force when equal and opposite torques are applied on either side. A section that cuts perpendicular to the shaft's axis at any arbitrary point R is examined to understand this. When the free-body diagram of the QR segment is analyzed, it reveals the shearing forces exerted by the PR portion onto the QR segment as the shaft experiences twisting.
Applying equilibrium conditions to the QR segment establishes that the internal shearing forces within the...
Applying equilibrium conditions to the QR segment establishes that the internal shearing forces within the...
830
Collar Bearings
1.6K
Collar bearings are essential in various machines designed to support axial loads on rotating shafts. Depending on the specific application and requirements, they can be found with single or multiple collars.
1.6K
Bearing Stress
1.9K
Bearing stress refers to the contact pressure between two separate bodies. To visualize this, imagine a bolt thrust through a plate. The bolt applies a force to the plate, which exerts an equal but opposite force back onto the bolt. This force isn't just a singular entity but a compilation of numerous smaller forces distributed across the contact surface between the bolt and the plate.
Due to the intricacy of these microforces, an average value, known as bearing stress, is often used by...
Due to the intricacy of these microforces, an average value, known as bearing stress, is often used by...
1.9K


