METHOD OF VIBRODIAGNOSTICS OF MECHANISM Russian patent published in 1995 - IPC

FIELD: vibromeasuring engineering. SUBSTANCE: spectrum of vibrations of mechanism is divided into N frequency fields and N groups of frequency components are filtered off; selected as m vibroparameter of mechanismm is total (integral) intensity of vibration spectrum components of m frequency field; after determination of respective approximating functiona, respective final difference of first order is determined in function of discrete time which is compared with preset threshold level and defect is determined in mechanism at preset moment of time; prediction for this defect is made; technical state of mechanismm is estimated according to values Δ_m(t_i) = σ2m

(t_i-σ2m(t_i-1) for each present and future moments of time. EFFECT: wide informativity and extended functional capabilities through prediction of spread of defect. 1 dwg