李宏坤   

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

MORE> Recommended Ph.D.Supervisor Recommended MA Supervisor Institutional Repository Personal Page
Language:English

Paper Publications

Title of Paper:基于时频图像特征提取的状态识别方法研究与应用

Hits:

Date of Publication:2010-07-25

Journal:振动与冲击

Included Journals:PKU、ISTIC、CSCD

Volume:29

Issue:7

Page Number:184-188

ISSN No.:1000-3835

Key Words:Hilbert时频谱;时频图像;支持向量机;同步平均

Abstract:介绍一种基于时频图像进行设备状态识别的新方法.论述了对振动信号应用Hilbert谱构建二维时频图像,研究时频图像三维重心与信息熵的特征提取方法构造特征向量,采用支持向量机进行设备的状态识别.并以滚动轴承不同状态的识别为例,验证方法的有效性.为提高滚动轴承振动信号特征提取的可靠性,采用多循环平均方法减小循环波动性影响.研究表明此方法能够提高设备故障诊断与状态识别的准确性.

Address: No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, P.R.C., 116024
Click:    MOBILE Version DALIAN UNIVERSITY OF TECHNOLOGY Login

Open time:..

The Last Update Time: ..