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http://dx.doi.org/10.3795/KSME-A.2016.40.5.489

Mode Characteristics of Spur Gears and Ball-Bearing Stiffness  

Park, Chan IL (Dept. of Precision Mechanical Engineering, Gangneung-Wonju Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.40, no.5, 2016 , pp. 489-495 More about this Journal
Abstract
This study focuses on a detailed ball-bearing model for spur gears. The nonlinear ball-bearing stiffness with radial clearance is derived and calculated. The bearing stiffness is used to the 3-degree-of-freedom (DOF) spur gear system model. The mode characteristics of the gear system model are analyzed and verified by performing finite-element analysis (FEA). From the results, the bearing stiffness on the radial clearance was more sensitive under low-load conditions compared to high-load conditions. The bearing stiffness significantly affected the gear dynamics in the low-frequency region, while the mesh stiffness affected the high natural frequency.
Keywords
Spur Gear; Ball Bearing; Radial Clearance; Mode Shape;
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