WEAR-ABILITY STATES QUANTIFICATION EVALUATION OF BEARING BASED ON SIGNALS OF THREE-DIMENSIONAL VIBRATION IMPACTS

摘要

The three-channel vibration acceleration signals were used to draw three-dimensional vibration impulse tracks with eight kind’s colors in each quadrant of three-dimensional coordinate system, which were visualized, audio-visual, and easy-distinguish. According to figure1, some indexes were refined, scilicet, quadrant volume vectors and quadrant areas vectors and its entropy refined from the XOY coordinate system. The vibration impulse situation of bearing seat in a cycle can be described integrated by the volume vectors including three indexes information, the phase, and the radius of impulse track. Quadrant area vector and it’s entropy in XOY coordinate system which include two indexed information of the phase and the radius of impulse track, offer the character of distributing uniformity in XOY plane. The diagnosis nicety rate was improved by comprehensive utilization of the three indexes. At last, through many experiments, the validity of the method and the refined indexes used to fix quantify evaluating of bearing abrasion status were validated.