Dynamic analysis of double-row self-aligning ball bearings due to applied loads, internal clearance, surface waviness and number of balls

A coupling vibration model of multi-stage pump rotor system based on FEM

“…∑ρ is curvature sum; Q is contact load; E1 and E2 are elastic moduli of rolling balls and races, respectively; μ1 and μ2 are Poisson's ratio for rolling balls and races, respectively, k is ellipticity; K and L are first and second kind of complete elliptic integrals, respectively. The curvature sum ∑ρ is determined by raceway groove curvature radius factor and geometric structure of the ball bearing and it can be got by Zhou et al [14], thus the sum contact deformations can be calculated as:  is contact deformation and the subscript 'i' and 'o' denote inner race and outer race, respectively. From Fig.…”

Multi-body modelling of rolling element bearings and performance evaluation with localised damage

“…Kogan et al [20] combined the model of an angular contact ball bearing to obtain a model for a duplex angular contact ball bearing. Another model for a double-row ball bearing was offered by Zhuo et al [46]. The authors proposed a three DOF model for self-aligning bearings; they studied the effect of the applied loads, the internal clearance, the waviness and the number of balls on the dynamic response of the REB.…”

“…Other dynamic models are related to other configurations of single-row ball bearings, such as angular-contact ball bearings [5,15,26,42]. There are a few models for double-row ball bearings in the research literature [20,46]. There are some models for roller bearings; these generally focus on cylindrical roller bearings [22,28,36], with a few some models proposed for tapered roller bearings [17].…”

Influence of raceway waviness on the level of vibration in rolling-element bearings

“…One of the factor affecting the vibrations generated by rolling bearings is surface geometry of their races, described by waviness deviation. Analyzing the literature, it can be concluded that a lot of research related to the study of impact of waviness deviation on the vibration amplitude, is based only on simulation [3]. There is a limited number of works focused on experimental research that use rolling elements-bearing commonly available on the market [4].…”