螺旋变速箱缺陷检测与机器学习使用常规网状元件和侧带
Iulian Lupea1, Mihaiela Lupea2, Adrian Coroian1
1Faculty of Industrial Engineering, Robotics and Production Management, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
本研究介绍了一种高精度的方法,用于通过振动分析检测螺旋变速箱缺陷. 最好的模型通过分析与基本网格频率相关的光谱特征,实现了99.73%的准确性.
科学领域:
- 机械工程 机械工程
- 状态监控 状态监控
- 振动分析 振动分析
背景情况:
- 螺旋变速箱是许多工业应用中的关键部件.
- 变速箱故障会导致大量停机时间和经济损失.
- 有效的状态监测对于预测性维护至关重要.
研究的目的:
- 开发和验证用于使用原始振动信号检测螺旋变速箱缺陷的模型.
- 调查轮故障与光谱特征之间的关系.
- 为准确的缺陷分类确定最佳特征.
主要方法:
- 使用三轴加速度计在各种操作条件下 (旋转速度和负载水平) 获取振动信号.
- 模拟和分析了轮故障,包括插孔和磨损.
- 特征提取涉及分析特定频段的功率,峰值幅度以及时间和频率领域的统计措施.
- 有立方内核的支持矢量机 (SVM) 用于缺陷检测.
主要成果:
- 在轮故障和基本网格频率 (GMF),其波和振动频谱中的侧带之间观察到强烈的相关性.
- 性能最好的模型在所有加速度计轴上使用了六个GMF波和两个侧带对的带功率.
- 这种基于SVM的模型在缺陷检测方面实现了99.73%的测试准确率.
结论:
- 振动分析,特别是围绕GMF的光谱特征,是螺旋变速箱缺陷检测的高效方法.
- 拟议的功能集和SVM模型表现出卓越的性能,为状态监控提供了强大的解决方案.
- 开发的模型能够检测故障,无论运行速度和负载条件如何.
更多相关视频
相关概念视频
Transmission Shafts: Problem Solving
222
Designing a solid shaft that transmits power from a motor to a machine tool involves a series of calculations to ensure the shaft can withstand the stresses applied by bending moments and torques. First, calculate the torque exerted on the gear, considering the power transmitted by the shaft and its rotational speed. Following this, compute the tangential forces acting on the gears, which directly relate to the torque and the gear radius.
Next, use bending moment diagrams for the shaft to...
Next, use bending moment diagrams for the shaft to...
222
Design of Transmission Shafts
289
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by...
289
Deformation in a Circular Shaft
279
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
279
Design of Transmission Shafts - Stress Analysis
341
Designing a transmission shaft requires a thorough understanding of the stresses induced by bending moments and torques, especially in systems where power is transferred through gears. These forces create force-couple systems at the centers of the shaft's cross-sections, leading to both transverse and torsional loading. Although shearing stresses from transverse loads are typically smaller than those from torques and are often overlooked, the significant normal stresses from these loads...
341
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
Stresses in a Shaft
363
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...
363


