STATIC STRESS-ANALYSIS OF COMPOSITE SPUR GEARS USING 3D-FINITE ELEMENT AND CYCLIC SYMMETRICAL APPROACH

It is more realistic to include the effect of adjacent teeth stiffness while evaluating the root stresses of a gear which is a rotationally periodic structure. This requires very large core and computational ti me. in the present analysis an attempt has been made to compare the ro ot stresses with and without considering the effects of adjacent gear teeth stiffnesses using the concept of cyclic symmetry. Further, an at tempt has been made to study the performance of a composite spur gear using the above approach. It is found that the root structure predicte d by the method of cyclic symmetry is less for both isotropic and orth otropic spur gears.