The Application of the QICA in the Operational Model Identification and Fault Diagnosis of Gearbox
Ru Zhang · Machinery Design and Manufacture · 2015
Operational model analysis of mechanical structure and vibrant fault diagnosis are the most essential and indispensable techniques in engineering application. Through the gearbox vibration experiment based on the LMS testing system,this paper applies Quantum Independent Component Analysis(QICA)to the experiments of operational model analysis on gearbox as well as fault diagnosis based on the research object of gearbox. Through analysis of the two kinds of experiments,the application results shows that this optimization algorithm excludes the influence of noises as well as hybrid frequency and surmounts the difficulties of distinguishing fault characteristic parameters,it successfully identified modal natural frequency;QICA makes the weak fault information enhanced obviously,and with the combination of PNN to achieve the purpose of fault diagnosis,making more reliable to diagnose the fault.