Useful Information Reconstruction-based Vibration Acceleration Signal Integral Method for Faulty Rotating  Machinery

China Mechanical Engineering ›› 2015, Vol. 26 ›› Issue (18): 2511-2517.

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Useful Information Reconstruction-based Vibration Acceleration Signal Integral Method for Faulty Rotating Machinery

Zhu Yong1,2;Jiang Wanlu1,2;Zheng Zhi1,2;Hu Haosong1,2

1.Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control,Yanshan University, Qinhuangdao, Hebei, 066004
2.Key Laboratory of Advanced Forging & Stamping Technology and Science(Yanshan University),Ministry of Education of China, Qinhuangdao,Hebei,066004

Online:2015-09-25 Published:2015-09-23
Supported by:
National Natural Science Foundation of China（No. 51475405）;National Program on Key Basic Research Project (973 Program)（No. 2014CB046405）;Hebei Provincial Natural Science Foundation of China（No. E2013203161,E2013203114）

基于有效信息重构的故障旋转机械振动加速度信号积分方法

朱勇1,2;姜万录1,2;郑直1,2;胡浩松1,2

1.燕山大学河北省重型机械流体动力传输与控制重点实验室，秦皇岛，066004
2.先进锻压成形技术与科学教育部重点实验室（燕山大学），秦皇岛，066004

基金资助:
国家自然科学基金资助项目(51475405);国家重点基础研究发展计划(973计划)资助项目(2014CB046405);河北省自然科学基金资助项目(E2013203161,E2013203114);河北省研究生创新资助项目(00302-6370002)

Abstract

Abstract:

A faulty rotation machinery vibration acceleration signal integration method was proposed based on useful information reconstruction.Firstly,ensemble empirical mode decomposition(EEMD) was utilized to decompose the integral signals. Secondly, the values of kurtosis,mean square error and singular value were proposed to be combined into a feature vector, and further used to extract the effective feature for the decomposed signals.Then,the effective feature components were extracted by Euclidean distance search.Finally,the effective feature components were reconstructed by threshold limit,and the desired integral signals were obtained.The effectiveness and practicability of the method were testified by simulation analysis and measured data.Results indicate that this method is excellent at removing noise and reserving effective feature information,and possesses high precision and superiority.

Key words: vibration acceleration;time domain integral；frequency domain integral；frequency-time , domain mixed integral;useful information reconstruction

摘要：

提出一种基于有效信息重构的故障旋转机械振动加速度信号积分方法。该方法首先利用集总经验模态分解(EEMD)对积分信号进行分解,然后将峭度指标、均方差值和奇异值组合成特征向量对分解信号进行有效特征提取,并通过欧氏距离搜索提取分解信号中隐含的有效特征分量,最后通过阈值限定将有效特征分量进行叠加重构得到所需有效积分信号。仿真分析和实测数据结果表明，该方法在去除噪声和保留有效特征信息方面，比传统积分方法具有更高的精度和优越性。

关键词: 振动加速度, 时域积分, 频域积分, 频域-时域混合积分, 有效信息重构

CLC Number:

TH13
TP27

Zhu Yong, Jiang Wanlu, Zheng Zhi, Hu Haosong, . Useful Information Reconstruction-based Vibration Acceleration Signal Integral Method for Faulty Rotating Machinery[J]. China Mechanical Engineering, 2015, 26(18): 2511-2517.

朱勇, 姜万录, 郑直, 胡浩松, . 基于有效信息重构的故障旋转机械振动加速度信号积分方法[J]. 中国机械工程, 2015, 26(18): 2511-2517.

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Useful Information Reconstruction-based Vibration Acceleration Signal Integral Method for Faulty Rotating Machinery

基于有效信息重构的故障旋转机械振动加速度信号积分方法

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