基于模糊聚类识别燃烧故障的循环内转速波动分析  

In-cylinder Combustion Exception Based on Intra-cycle Speed Fluctuation and Fuzzy Clustering Theory

作　　者：吴燕萍[1] 陈红岩[2] 

机构地区：[1]浙江大学教务处,杭州310058 [2]中国计量学院机电工程学院,杭州310018

出　　处：《农机化研究》2007年第1期205-207,共3页Journal of Agricultural Mechanization Research

基　　金：国家自然基金资助项目(69974034)

摘　　要：利用不同发动机故障症状引起不同的缸内压力的特点,划分了几种发动机气缸不同的工作状态。同时,在自行研制的实时转速波动监测系统的基础上,对SY492Q-4型汽油机进行了循环内转速波动样本指标的测试,运用模糊聚类故障诊断的方法对多缸故障的症状进行了有效的识别。结果表明。According to different combustion faults leading to different pressures in gasoline engine, a new method of diagnosing in-cylinder combustion exception with intra-cycle speed fluctuation and fuzzy cluster theory was developed in this paper. And a self-researched condition monitor was used to acquire on-line test data of intra-cycle speed fluctuation according to which reconstructed its combusting pressures. Experiments in gasoline engine SY492Q-4 have showed that fault diagnosis by fuzzy cluster theory is reliable within the range 2000rpm of rotation speed.

关 键 词：能源与动力工程 内燃机 分析 故障诊断 循环内转速波动 模糊聚类 

分 类 号：TK418[动力工程及工程热物理—动力机械及工程]