王帅星,嵇玉辰,王晓笋,巫世晶.运架一体机行走液压系统泄漏故障仿真与诊断[J].机床与液压,2021,49(2):158-162.
WANG Shuaixing,JI Yuchen,WANG Xiaosun,WU Shijing.Simulation and Diagnosis of Leakage Fault of Traveling Hydraulic System of YJ900 Transported Frame Integrated Grider Machine[J].Machine Tool & Hydraulics,2021,49(2):158-162 |
| 运架一体机行走液压系统泄漏故障仿真与诊断 |
| Simulation and Diagnosis of Leakage Fault of Traveling Hydraulic System of YJ900 Transported Frame Integrated Grider Machine |
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| DOI：10.3969/j.issn.1001-3881.2021.02.32 |
| 中文关键词: YJ900运架一体机 行走液压系统 故障诊断 BP神经网络 粒子群优化算法（PSO） |
| 英文关键词: YJ900 transported frame integrated grider machine Travelling hydraulic system Fault diagnosis BP neural network Particle swarm optimization （PSO）algorithm |
| 基金项目:工信部智能制造专项(2017GXB530026) |
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| 中文摘要: |
| 针对YJ900运架一体机行走液压系统容易发生的内泄漏故障问题，运用AMESim软件建立其液压仿真模型。模型中引入泵泄漏、马达泄漏以及泵和马达同时存在泄漏3种典型故障模式，并采集液压马达进出口数据作为样本。将数据样本分为训练样本和测试样本，将训练样本输入MATLAB搭建BP神经网络故障诊断模型，并用测试样本完成故障模型的测试。主要研究神经元个数以及训练样本数对故障诊断成功率的影响。利用粒子群优化算法(PSO)对BP神经网络进行初始权重和偏置的优化，从而显著提高了少训练样本下的故障诊断成功率 |
| 英文摘要: |
| Aiming at the problem of internal leakage fault easily occurred in the travelling hydraulic system of YJ900 transported frame integrated grider machine,AMESim was used to establish the hydraulic simulation model.Pump leakage,motor leakage and simultaneous leakage of the pump and motor were introduced into the model,the hydraulic motor inlet and outlet data were collected as samples.The data samples were divided into training samples and test samples.The training samples were input into the MATLAB to build a BP neural network fault diagnosis model and the test samples were employed to test the fault model.The influence of the number of neurons and the number of training samples on the success rate of fault diagnosis was studied.Particle swarm optimization (PSO) algorithm was used to optimize the initial weight and bias of BP neural network,by which the success rate of fault diagnosis under the condition of less training samples was significantly improved |
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