文档介绍：1 1
3
1 1 1 1 1 1
1
2
2
2010年 6月润滑与密封 June 2010
第 35卷第 6期 LUBR ICATION ENGINEER ING Vol 35 No 6
DO I: 10 3969 / j issn 0254 - 0150 2010 06 025
模糊诊断技术在天然气压缩机故障诊断中的应用
3 2 2
1
赵旭东张来斌段礼祥
(中国石油大学(北京) 机电工程学院北京 102249)
1 2 1 1
摘要: 针对某天然气压气站的大型离心压缩机故障诊断的要求, 提出一种基于模糊理论的故障诊断模型。该模型
基于征兆对于故障的肯定及否定程度, 提出修正模糊关系矩阵, 能够适应复杂故障的诊断。实践证明这种诊断模型应用
在压缩机故障诊断上是可行的。
关键词: 离心压缩机; 模糊理论; 故障诊断
中图分类号: TH165 3 文献标识码: A 文章编号: 0254 - 0150 (2010) 6 - 104 - 4
Application of Fuzzy D iagnosis Techn ique on Fault D iagnosis of
pressors in Natural Gas Station
Zhao Xudo ng Zhang La ib in D uan L ixia ng
(College of Mechanical and Electrical Engineering, China University of Petroleum (Beijing) , Beijing 102249, China)
Abstract:A mathematic model of fault diagnosis based on the fuzzy theory was established for the large
p ressors in natural gas station. According to the positive and negative effect of symp tom s to faults, the revised fuzzy relation
matrix was introduced to suit p lex fault diagnosis. The p roposed model was p roved to be p racticable on fault diagno
sis for p ressor.
Keywords: p ressor; fuzzy theory; fault diagnosis
目前国内输气管线增压站(如陕西榆林、府谷 um } , 征兆集合为 V = { v1 , v2 , ⋯, vn } , 建立由故
增压站) 采用的离心式压缩机组大多从国外进口, 障征兆到故障原因的模糊关系矩阵 R,
价格昂贵, 其投资占压气站投资的 50%以上。虽然 r11 , r12 , ⋯, r1n
离心式压缩机的故障类型较多, 但往往以机组异常振 R = ⋯⋯⋯⋯(1)
动的形式表现出来目前诊断异常振动常用的方法有
, rm 1 , rm 2 , ⋯, rm