[1]李志远,黄亦翔,刘成良,等.基于经验模态分解与深度森林的液压泵健康评估[J].机械与电子,2020,(05):3-8.
 LI Zhiyuan,HUANG Yixiang,LIU Chengliang,et al.Health Assessment of Hydraulic Pump Based on Empirical Mode Decomposition and Deep Forest[J].Machinery & Electronics,2020,(05):3-8.
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基于经验模态分解与深度森林的液压泵健康评估()
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机械与电子[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2020年05期
页码:
3-8
栏目:
设计与研究
出版日期:
2020-05-22

文章信息/Info

Title:
Health A ssessment of Hydraulic Pump Based on Empirical Mode Decomposition and Deep Forest
文章编号:
1001-2257(2020)05-0003-06
作者:
李志远黄亦翔刘成良李彦明贡 亮
上海交通大学机械系统与振动国家重点实验室,上海 200240
Author(s):
LI Zhiyuan HUANG Yixiang LIU Chengliang LI Yanming GONG Liang
State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
关键词:
液压泵经验模态分解深度森林健康评估
Keywords:
hydraulic pump empirical mode decomposition deep forest health assessment
分类号:
TH137.51;TP181
文献标志码:
A
摘要:
提出了一种基于经验模态分解和深度森林的方法,用于分析液压泵出口压力,从而进行健康状态评估。通过试验系统采集了不同工作时间下液压泵的出口压力信号,利用经验模态分解的方法对其进行分解,分别得到一组本征模态函数,提取其特征;结合原始信号典型时域特征,最终构成信号的特征向量。采用深度森林的方法进行不同健康状态的分类。实验结果表明,所提方法的分类结果准确率可达97%,采用经验模态分解和深度森林结合的方法可以有效提高液压泵健康状态评估的准确率。
Abstract:
A method based on empirical mode decomposition (EMD) and deep forest was proposed to analyze the pressure at the pump outlet to evaluate the health status. The pressure signals of hydraulic pump outlets under different working hours are collected by the test system, and they are decomposed by the EMD method to obtain a set of intrinsic mode function (IMF). The features of the IMFs are extracted and combined with the typical time-domain features of the original signal to form the feature vectors of the signal. Deep forest method is used to classify different health states. The experimental results show that the accuracy of the classification results of the proposed method can reach 97%, and the combination of EMD and deep forest can effectively improve the accuracy of the health assessment of the hydraulic pump.

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备注/Memo

备注/Memo:
收稿日期:2019- 12- 23
基金项目:国家重点研发计划(2017YFB1302004);2019—2021广东省重点领域科技研发计划项目(2019B090922001)
作者简介:李志远 (1994-),男,河南周口人,硕士研究生,研究方向为设备故障诊断与健康评估;黄亦翔 (1980-),男,上海人,硕士研究生导师,助理研究员,研究方向为工业大数据分析、设备故障诊断与寿命预测等。
更新日期/Last Update: 2020-05-22