DIAGNOSTICS METHOD FOR DAMAGES OF MACHINE PARTS

摘要

FIELD: machine building.SUBSTANCE: diagnostics method implies that vibration level in information points of the machine body within the informative frequency band is measured, trends of vibration variations in time are drawn up, the obtained values are compared to the rejection limits and the state of the machine parts is estimated on the basis of the comparison results. Change of the vibration trend within the whole service life of the machine is monitored, vibration jumps in time are sorted, trends of vibration overshooting amplitudes are drawn up as well as those of their ratios and increments, stages of machine part damages are stored in memory.EFFECT: prevention of machine breakdowns under continuous operation by improving the reliability of detecting the machine parts' degradation due to the registration of defects of vibration overshooting amplitudes at early stages that helps to draw a conclusion on the availability of fatigue breakdown process in the machine parts.2 cl, 7 dwg