ADAMS Dynamics Simulating and Analysis of Vibration Signal for Deep-Groove Ball Bearings

Abstract

This paper presents the dynamics-simulation and research of vibration characteristic on deep-groove ball bearing. It introduces an analysis of the vibration frequency in different damage of bearing and spectrum analysis of the fault signal on bearing to draw response on vibration characteristics in bearing, so as to provide a simple method on research of dynamic fault characteristic of bearing. This work shows some kind, characteristics signal and frequency of fault on bearing. The normal model and other two models which have raceway crack in inside track and out ring are set up by using ADAMS software to analyse the dynamic of them, the test program that vibration signal of three models are obtained by acceleration sensors to instead of that of real condition is simulated. In addition, the test signal of vibration is given in time domain respectively, and the vibration characteristic is identification by using spectrum analysis method, so that it can provides technical support for diagnosis of fault bearing. In the study of fault diagnosis, several experimental results provide that the uncertainty of fault diagnosis and interference of other complicated factors are avoided effectively in real environment. The result of simulated analysis is consistent with the theory calculation. This method is more effective, convenient and expansibility than a research of practical fault-diagnosis.

Research on the influence of thermal expansion of steel shaft on dynamic characteristics of full ceramic bearing-rotor system

“…Bovet and Zamponi 21 studied the dynamic law of ball bearings under large torque loads and proposed a modeling method to predict the internal dynamic characteristics of bearing structures, paying special attention to the stress of shafts and bearing inner rings. Yang et al 22 analyzed vibration frequencies under different damage conditions and carried out spectrum analysis on bearing fault signals, and proposed a simple bearing dynamic fault feature method. Razpotnik et al 23 proposed a new analytical model of bearing stiffness to overcome the problem of unstable bearing system response in the transient region by using smooth processing.…”