Investigations on crack propagation and meshing characteristics of planetary gear train considering crack closure effect
Engineering Failure Analysis（2022）
Abstract
•Crack closure effect is considered in meshing characteristics investigation of planetary gear.•A three-dimensional crack propagation model for planetary gear is developed.•Constraining outer rim of thinner ring gear helps to avoid foundation crack.•Meshing stiffness is more sensitive to backup ratio when pin support is constrained only.
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Key words
Planetary gear,Crack propagation,Meshing characteristics,Crack closure effect,Constraint mode
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