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基于分形理论的汽轮发电机组故障诊断
引用本文:侯荣涛,孙丽媛,任立义,杨文平.基于分形理论的汽轮发电机组故障诊断[J].辽宁工程技术大学学报(自然科学版),2003,22(1):77-79.
作者姓名:侯荣涛  孙丽媛  任立义  杨文平
作者单位:1. 东北大学机械工程学院,辽宁,沈阳,110024;唐山学院机械系,河北,唐山,063000
2. 河北理工学院机械系,河北,唐山,063000
3. 东北大学机械工程学院,辽宁,沈阳,110024
4. 唐山学院机械系,河北,唐山,063000
基金项目:唐山市博硕基金项目(0114201-1)
摘    要:分析了汽轮机发电机组的几种常见故障及其表现形式,利用传统的频谱分析方法对某汽轮发电机组进行了状态分析,并研究了该发电机组在不同运行状态下的关联维数,给出了利用分形理论对汽轮机发电机组故障实施故障诊断的判据,利用数字量信息-关联维数作为诊断标准有利于计算机对设备的运行状态进行识别与判断,为机械设备的在线监测与故障诊断提供了可靠的工具,该方法为复杂机械的线监测与故障提供了新的思路。

关 键 词:分形理论  汽轮发电机组  故障诊断  频谱分析方法  关联维数  在线监测
文章编号:1008-0562(2003)01-0077-03
修稿时间:2002年4月25日

Fault diagnosis of the generator set based on fractal theory
HOU Rong-tao,SUN Li-yuan,REN Li-yi,YANG Wen-ping.Fault diagnosis of the generator set based on fractal theory[J].Journal of Liaoning Technical University (Natural Science Edition),2003,22(1):77-79.
Authors:HOU Rong-tao  SUN Li-yuan  REN Li-yi  YANG Wen-ping
Abstract:Studied ordinary faults of steam-electric generator sets and their appearance forms. Using thetraditional method of the frequency picture, the running state of some steam-electric generator set is analyzed. Thecorrelation dimensions of the steam-electric generator set in different state was studied, meanwhile the criterion for the steam-electric generator set fault diagnosis was given. Using the digital information is useful foridentifying and judging the running state of the steam-electric generator set by computer, and provides a credible means for complex machinery fault diagnosis and monitoring on line. The method gives a new idea for complex machinery fault diagnosis and monitoring.
Keywords:fractal theory  steam-electric generating set  fault diagnosis
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