关于化故障的研究 轴向活塞的诊断 基于粗略的设置属性加权的卷积神经网络
Min Liu1, Zhiqi Liu1, Jinyuan Cui1,2
1College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China.
Sensors (Basel, Switzerland)
|November 13, 2025
概括
这项研究引入了一种新的智能方法,用于使用粗略设置的属性加权卷积神经网络 (RSAW-CNN) 诊断活塞腔. RSAW-CNN的准确度超过99.2%,为故障诊断提供了可靠和可解释的解决方案.
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:
- 活塞中的洞穴会导致重大运行问题,如振动,噪音和部件损坏.
- 现有的诊断方法缺乏准确性,当前的深度学习方法往往无法解释.
- 对于活塞来说,需要准确,可解释和可靠的故障诊断技术.
研究的目的:
- 为活塞提出智能故障诊断方法,解决传统和深度学习方法的局限性.
- 为了提高在经历空洞化后的活塞中故障诊断的解释性和准确性.
- 开发一个强大的诊断系统,利用粗略的集合理论和卷积神经网络 (CNN).
主要方法:
- 开发了一个计算流体动力学 (CFD) 模型来模拟活塞空化.
- 粗略的集合理论被应用到属性减少和错误决策表的构建上.
- 设计了一个属性加权卷积神经网络 (RSAW-CNN),包含特征重要性的权重矩阵,并提取了可解释性的决策规则.
主要成果:
- 拟议的RSAW-CNN方法实现了超过99.2%的平均诊断准确率.
- 与传统方法和其他深度学习模型 (例如,BPNN,ResNet,CNN,SENet) 相比,观察到显著的准确性改善.
- 该方法通过提取的决策规则证明了强大的解释性.
结论:
- RSAW-CNN方法提供了一个非常准确和可靠的解决方案,用于诊断活塞中的空洞化.
- 粗略集合理论的整合增强了用于故障诊断的深度学习模型的可解释性.
- 这种智能方法为液压系统的预测性维护提供了有希望的进步.
相关概念视频
Design Example: Creating a Hydraulic Model of a Dam Spillway
653
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
653
Node Analysis for AC Circuits
622
Consider an angioplasty system featuring a catheter equipped with a turbine, a critical tool for removing plaque deposits from coronary arteries. This intricate medical device operates using a circuit model reminiscent of a dual-node RLC circuit powered by a current-controlled voltage source.
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
To unravel the complexities of this system, nodal analysis is employed, a powerful technique founded on Kirchhoff's current law (KCL), which remains valid for phasors. AC circuits can effectively be...
622
Newtonian Fluid: Problem Solving
839
Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...
839
Turbulent Flow: Problem Solving
374
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
374
Uniform Depth Channel Flow: Problem Solving
422
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
422
Fault Types
391
When analyzing a single line-to-ground fault from phase A to ground at a three-phase bus, it is important to consider the fault impedance. This impedance is zero for a bolted fault, equal to the arc impedance for an arcing fault, and represents the total fault impedance for a transmission-line insulator flashover. To derive sequence and phase currents, fault conditions are translated from the phase domain to the sequence domain.
For line-to-line faults occurring between phases B and C, the...
For line-to-line faults occurring between phases B and C, the...
391


