一种基于机器学习和智能预处理的低复杂度滚动轴承诊断技术
Ada Fort1, Elia Landi1, Marco Mugnaini1
1Department of Information Engineering and Mathematics, University of Siena, 53100 Siena, Italy.
Sensors (Basel, Switzerland)
|September 9, 2023
概括
这项研究引入了使用振动和速度数据的强大的滚动轴承诊断系统. 机器学习方法达到98%以上的准确性,为各种工业应用证明了出色的概括性.
科学领域:
- 机械工程 机械工程
- 人工智能的人工智能
- 信号处理 信号处理
背景情况:
- 滚动轴承是旋转机械的关键部件,它们的故障会导致大量停机时间和成本.
- 有效的状态监测和诊断系统对于预测性维护和操作可靠性至关重要.
- 现有的诊断系统经常在不同的操作条件和不同的采购设置下扎.
研究的目的:
- 开发一个准确而强大的滚动轴承诊断系统.
- 创建一个可以在嵌入式电子设备上部署的系统,其计算需求较低.
- 设计一个故障诊断系统,对机器工作条件,轴承模型和采集系统的依赖最小.
主要方法:
- 同时测量振动和机器旋转速度.
- 时间域方法的组合用于故障检测和机器学习用于故障位置.
- 开发一种用于神经网络分类器的新型预处理算法,以提高其稳定性.
- 使用特设测试台模拟数据进行训练.
主要成果:
- 使用模拟数据实现了整体分类器准确度大于98%.
- 在各种工作条件,设置和噪音水平中,表现出强大的概括能力,准确度超过97%.
- 通过使用来自不同场景的真实世界的振动数据验证了系统独特的概括能力.
结论:
- 拟议的滚动轴承诊断系统具有高度准确性和稳定性.
- 该系统的低复杂性和资源需求使其适合嵌入式应用.
- 经过证明的概括能力使其在各种工业场景中具有广泛的适用性.
相关概念视频
Bearings: Problem Solving
305
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...
305
Pivot Bearings
1.4K
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...
1.4K
Collar Bearings
1.3K
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.
1.3K
Rolling Resistance: Problem Solving
370
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
370
Journal Bearings
703
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...
703
Bearing Stress
924
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...
924


