Vibration effect analysis of roller dynamic unbalance on the cage of high-speed cylindrical roller bearing

Abnormal Wear Mechanism and Improvement of High‐Speed Cylindrical Roller Bearing

“…When bearing runs at a high speed, the dynamic unbalance mass of roller causes it to bear the additional dynamic load, which causes roller skew and tilt. As shown in Figure 4, suppose that the dynamic unbalance mass of roller O mj is located at an angle θ mj in the axial direction x rj and an angle φ mj in the radial direction y rj , the distance between O mj and o rj is e mj , F cvj and F cwj are the centrifugal forces generated by the jth roller's dynamic unbalance mass, and the calculated expressions can be found in the literature [16,17].…”

“…In addition, according to the analysis of the dynamic characteristics of cylindrical roller bearing, many scholars have also discussed many aspects: e dynamic characteristics of load distribution, oil film thickness, roller and cage slip, roller skew, and axial movement were calculated, and the nonlinear dynamic model of cylindrical roller bearing was established by Leblanc et al [14], considering the structural deformation of the ring and cage material, the force and torque produced by the roller raceway contact were analysed, and the nonlinear dynamic model of high-speed cylindrical roller bearing was established by Wang et al [15]. Yongcun et al [16,17] established a dynamics model of cylindrical roller bearing considering roller's dynamic unbalance mass and studied the effects of roller's dynamic unbalance mass on cage nonlinear dynamic characteristics, especially on cage vibration. Sun et al [18,19] established the nonlinear dynamic differential equations of cylindrical roller bearings with an elastic ring and studied the effect of the elastic ring on the slip ratio and stability of cage.…”

Dynamic Balance Method for Grading the Chain Drive Double Threshing Drum of a Combine Harvester

“…In order to effectively reduce the vibration caused by the unbalance of a spindle rotor system, Gu et al, (2019) synchronized the exciter and the two cylindrical drums in the super-resonant vibration system using the averaging method of correcting small parameters [11]. Cui et al, (2018) carried out the dynamic unbalance vibration effect analysis of the high-speed cylindrical drum bearing cage and proposed the nonlinear dynamic differential equation of this high-speed cylindrical drum bearing considering the dynamic unbalance of the drum [12]. Therefore, there is an unbalanced vibration problem during the rotation of the drum in many engineering situations.…”

Safety Characteristic Evaluation of Cage in Cylindrical Roller Bearing at the Stage of Start-Up and Stop

“…Ding et al [16] built a nonlinear dynamics model of high-speed CRB, and then the effects of acceleration, radial load and radial clearance on cage's speed, and slip characteristic were investigated. Cui et al [17][18][19][20] presented a nonlinear dynamics model of CRB with the dynamic unbalance of roller and cage and then focused on the impact of roller's dynamic unbalance on cage's stability, stress distribution, and vibration. Niu et al [21] presented a nonlinear dynamics model of CRB to predict roller's skidding behavior, considering the radial clearance, roller crown profile, and discontinuous contact between roller and cage and investigated the influence of various load conditions on single roller's local skids.…”