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Deformation and Response Analysis of Spur Gear Pairs with Flexible Ring Gears and Localized Spalling Faults
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Deformation and Response Analysis of Spur Gear Pairs with Flexible Ring Gears and Localized Spalling Faults
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Deformation and Response Analysis of Spur Gear Pairs with Flexible Ring Gears and Localized Spalling Faults
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Journal Article
Deformation and Response Analysis of Spur Gear Pairs with Flexible Ring Gears and Localized Spalling Faults
2022
Overview
For the analysis on the deformation of flexible ring gears in spur gear pairs, the complete flexible ring is discretized, and the boundary condition is added to the connecting points to develop a calculation method for the flexible deformation. The ovality index is used to describe the deformation degree of flexible ring gears, then the influences of ring-gear width and the spalling defects on the flexible deformation of ring gears are discussed. The result shows that the flexible deformation of ring gears is caused by the gear pair meshing force, and the deformed shape is close to an ellipse. In the single-tooth meshing interval of gear pairs, the main form of deformation is being stretched, and while in the double-tooth meshes, the main form is bending deformation. When the width of the ring gear rims is increased, the flexible deformation of the ring gears can be effectively suppressed, and the vibration amplitude of the gear pairs can be reduced. Additionally, when there is a localized spalling fault on gear pairs, the sudden changes in the deformation of flexible ring gears are generated by the shock of the meshing force. Finally, through the finite element analysis model and the experiment, the mathematical model of gear pairs with flexible rings is confirmed.
