Comparison of three teeth and whole body models in spur gear analysis

The gear teeth deflections and stresses are estimated by the boundary eleme nt method with two types of gear models, three teeth and whole body; respec tively. The models are developed-by considering profile modifications, cont act deformations, frictional effects, hub boundary conditions, keyway effec ts, load sharing of the teeth, etc. The results are shown to compare favour ably with analogous results obtained by strain gage experiments. Consequent ly, whole body model gives more realistic results from the modeling point o f view in spur gear analysis. (C) 1998 Elsevier Science Ltd. All rights res erved.