一个基于随机共振的新型深度残余网络,用于滚动轴承系统故障诊断
Xuqun Zhang1, Yumei Ma1, Zhenkuan Pan1
1College of Computer Science & Technology, Qingdao University, Qingdao 266071, China.
ISA transactions
|April 6, 2024
概括
这项研究通过将随机共振 (SR) 与尖端神经网络 (SNN) 集成来增强滚动轴承故障诊断. 这种方法有效地提高了在噪音条件下的准确性,确保了更安全的机械设备操作.
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:
- 滚动轴承是机械系统中的关键部件,需要可靠的状态监控以确保安全运行.
- 由于收集的信号中的噪音,对轴承的故障诊断具有挑战性,阻碍了准确的识别.
- 现有的方法在高强度噪音环境中难以提取特征.
研究的目的:
- 引入随机共振 (SR) 作为一个特征增强技术在一个尖端神经网络 (SNN) 框架内.
- 提高滚动轴承故障诊断的分类准确性,特别是在不同噪声条件下.
- 提高故障检测系统在杂环境中的稳定性和适应性.
主要方法:
- 随机共振 (SR) 被集成到一个尖端神经网络 (SNN) 架构中.
- 结合方法应用于不同噪声强度的滚动轴承故障信号.
- 实验使用Case Western Reserve University (CWRU) 携带的数据集进行验证.
主要成果:
- 拟议的方法在CWRU数据集上实现了99.9%的分类准确性.
- 在高噪音环境中 (SNR = -8 dB),该系统的准确性超过92%.
- 随机共振增强尖端神经网络 (SRDN) 显示出显著的稳定性和适应性.
结论:
- 集成SR与SNNs提供了一个有效的解决方案,以提高滚动轴承故障诊断.
- 在噪音条件下,SRDN方法显著提高了信号噪声比 (SNR) 和分类性能.
- 这种方法为在具有挑战性的工业环境中进行条件监测提供了强大且可适应的工具.
更多相关视频
08:27Author Spotlight: Efficient Image Recognition Using Directional Gradient Histogram Technique and Support Vector Machines
Published on: January 5, 2024
1.1K
00:06Stochastic Noise Application for the Assessment of Medial Vestibular Nucleus Neuron Sensitivity In Vitro
Published on: August 28, 2019
5.1K
相关概念视频
Bearings: Problem Solving
282
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...
282
Rolling Resistance: Problem Solving
324
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...
324
Rolling Resistance
288
When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down...
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down...
288
Residual Stresses in Circular Shafts
170
In materials that exhibit elastic and plastic behavior, known as elastoplastic materials, residual stresses can accumulate when these materials experience plastic deformation. This deformation arises from either high levels of shearing stress or significant strains. Residual stresses are internal stresses that persist within a material after removing the external force causing deformation. This phenomenon is demonstrated when observing the behavior of a shaft under torque; notably, the...
170
Journal Bearings
664
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...
664
Pivot Bearings
1.3K
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...
1.3K
