Parametric Instability of Face Gear Drives Meshing With Multiple Spur Pinions

Abstract

This paper studies the dynamic behaviors for facegear drives meshing with multiple spur pinions by using the model of a spinning disk with timevarying mesh loads that result from the unique facegear meshing kinematics and nonunity contactratio. The system stability is assessed with respect to intersecting pinion shaft angles and pinion gear properties. The results provide information about parametric instability for dynamicbased design of multipinion/facegear drives. This investigation also provides stabilization methods for preinstalled systems via gear radii and tooth numbers for a given intersecting pinion shaft angle.