Web14 de abr. de 2024 · Severity identification and size estimation is a crucial part of the quantitative diagnosis for ball bearing faults. In this paper, novel fault severity classification rules and the size estimation model based on vibration mechanism for ball bearings are proposed for more accurate estimation of the fault size. A nonlinear dynamic model, with … WebAiming at a Top Gas Recovery Turbine Unit (TRT) with double support rotor and the extending disk end, theoretical and experimental analysis about influence of cylindrical bearing and four-lobe bearing on vibration of TRT rotor system are conducted in this paper. The results indicate that vibration of the rotor supported by cylindrical bearing is …
Improved Fault Diagnosis of Ball Bearings Based on the Global …
WebA vibration analysis of a rigid shaft-ball bearing system is presented. In order to approximate the nonlinear load-deformation characteristics of the ball/race contacts, an approximation by means of the Taylor series is studied. The response of an imperfect model system in both time and frequency domains is studied. WebAbstract. Computer simulation is used to analyze the radial vibration of ball bearings in order to overcome the experimental and theoretical difficulties : the experimental difficulties are due to the complicated interaction of the dominant factors while the theoretical difficulties are due to the nonlinear spring behaviour and time-dependent ... pho north east md
Vibration Measurement Methods for the Detection of Defects in …
WebAbstract. Computer simulation is used to analyze the radial vibration of ball bearings in order to overcome the experimental and theoretical difficulties; the experimental difficulty is due to the complicated interaction of the predominant factors, and the theoretical difficulty is due to the nonlinear spring behaviour and time-dependent ... Web18 de dez. de 2024 · 3 Synchronous vibration prediction method for high speed ball bearing turbomachinery. Three steps are integrated on the method. A “ball bearing-squeeze film damper” model allows to predict the isotropic stiffness and damping coefficients as function of the eccentricity; they are integrated on a rotordynamics code … Web10 de abr. de 2024 · This article presents a dynamic model of ball bearings with a localised defect on the outer raceway to analyse the effect of damping variation on the vibration … pho north london