Vague故障诊断方法在振动故障诊断中的应用

摘要

A transforming formula from fuzzy data hij to vague data hij : Ki(hj)=hij=[tij,1-fij] = [(hij)2l,(hij)1/2] is presented.And a similarity measure formula between two vague sets H and G : Mm(H,G) =1/n ∑ n I=1 3-∣fim)hi - fim) gi∣ - ∣c{m)hi - c{m) gi∣ - ∣dlm) hi - dlm)gi∣ 3+∣ flm)hi - flm))gi∣ + ∣clm)hi - c{mgi) ∣+∣ dlm)hi-dlm)gi∣is presented.To diagnose the vibration faulty of turbo generator by application of the vague method of faults diagnosis,the effect is ideal.%提出模糊数据hij化成Vague数据hij的转化公式:k1(hj)=hj=[tij,1-fij]=[(hij)2,(hij)1/2],以及Vague集H和G之间的相似度量公式:Mm(H,G)=(1/n)nΣi=1 {3-|f(m)hi-f(m)gi|-|c(m)hi-c(m)gi|-|d(m)hi-d(m)gi|}/{3+|f(m)hi-f(m)gi|+|c(m)hi-c(m)gi|+|d(m)hi-d(m)gi|}.应用Vague故障诊断方法,进行汽轮发电机组的振动故障诊断,其效果是理想的.