Font Size: a A A

Numerical Contact Analyses With Friction Of Hybrid-Ceramic Deep Groove Ball Bearings Based On ABAQUS

Posted on:2008-10-24Degree:MasterType:Thesis
Country:ChinaCandidate:Y H FengFull Text:PDF
GTID:2132360245492101Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
The ceramic ball bearings derived from conventional steel bearings. However, there is substantial difference between ceramic material and steel material. It is wrong to copy the steel bearings formula directly for the design of ceramic ball bearings. Accordingly, it is important and urgent to do effective research on the design theory and methods for ceramic ball bearings.Contact analysis, that is the calculation of contact stress and deformation, is the base of hybrid ceramic ball bearings .Nonlinear finite element analysis was proposed in this paper to solve the contact problem for hybrid-ceramic ball bearings. Contact function and contact algorithm of ABAQUS finite element method software was introduced in this paper.First, this paper took the raceway-spherical surface contact model for example, contact stress and deformation were computed in the static status using ABAQUS software. The results obtained by finite element analysis were consistent with the experiment results, which proved that the setting of relevant parameters, the meshing of geometry and the defining of boundary were reasonable and correct. The static analysis established a fine base for more complex contact analysis on the hybrid ceramic ball bearings.Based on the above static analysis work, this paper also researched the methods on how to make the multi-body move, how to apply load and gravity with ABAQUS.The models of hybrid ceramic deep groove ball bearings under running conditions were analyzed successfully, taking in to account of the influence of the gravity and the friction when the bearing under running status. The analytic results obtained by the emulation experimentation accorded with results of the academic qualitative analysis, which showed that the modelling methods adopted in this paper and the FEM were feasible and reliable. The exploration of dynamic analysis in this paper has profound significance for further complicated running conditions of ceramic bearings.
Keywords/Search Tags:Hybrid-ceramic ball bearings, Contact problem, FEA (Finite Element Analysis), Friction, ABAQUS
PDF Full Text Request
Related items