基于密度聚类的复杂装备健康监测方法OACSTPCD
Method of health monitoring for complex equipment based on density clustering
针对复杂装备历史数据往往存在非球形的特征,提出了一种基于密度聚类的复杂装备健康监测模型.从历史数据中估计各个样本的局部密度和类间距离,并综合考虑两者的统计特性以确定数据的聚类中心,对于新采集的复杂装备健康状态监测数据,如果它与聚类中心密度可达,就认为该复杂装备处于健康状态,否则就处于非健康状态.通过数值仿真技术分析了一个实际的复杂装备数据集,以及利用散点图、盒图和平行坐标系等可视化技术来验证计算结果的可靠性,仿真结果表明提出的方法能够有效监测复杂装备的健康状态.
A density clustering-based health monitoring model for complex equipment is proposed for the complex equipment historical data which often has the characteristics of non-spherical shape.The local density and inter-class distance of each sample are estimated from the historical data,and the statistical properties of both are considered to determine the clustering center of the data.For the newly collected complex equipment health status monitoring data,if it is reachable with the density of the clustering center,the complex equipment is considered to be in a healthy state,otherwise it is in a non-healthy state.An actual complex equipment data set is analyzed by numerical simulation techniques,as well as visualization techniques such as scatter plots,box plots and parallel coordinate systems are used to verify the reliability of the calculated results,and the simulation results show that the proposed method can effectively monitor the health status of complex equipment.
余彦;蔡霖;张冲;冀弘帅
北京机械设备研究所, 北京 100854
密度聚类健康监测局部密度类间距离平行坐标系密度可达
density clusteringhealth monitoringlocal densitydistance among classesparallel coordinatedensity ar-rived
《指挥控制与仿真》 2024 (002)
69-77 / 9
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