One of the important factors in gear dynamic analysis is accurate estimation of the mesh stiffness. To accurately model the mesh stiffness characteristics, the Pseudo-Interference Stiffness Estimation (PISE) method is proposed. PISE draws upon the finite element analysis method. It also analyzes the non-linear, geometric based characteristics of the local contact region. Consequently, PISE is used to model the elastic deformation at the mesh regions and estimate the corresponding stiffnesses in the elastic region.
In this paper, as an example, PISE is applied to the two cylinders’ contact problem. Thus the PISE solution is compared with exact analytical solution which is readily available in literature. Subsequently, PISE is used to model the contact region and estimate the mesh stiffness of a gear system.