In the foundation of the contact characteristic research for an arc surface to a plane

the structure scheme of the tenon contact surface which is composed of the straight plane and the partial circular arc surface was proposed in this paper. The design results of the scheme were given and compared with that of the contact surface with the typical cylindrical structure. And then

in consideration of the fretting fatigue

the two structure design schemes of tenon contact surface were optimized and analyzed in the selection of minimizing the maximum synthesizing parameter FFD (fretting fatigue damage) and the maximum contact stress respectively as the optimization objective. The results show that minimizing the maximum synthesizing parameter FFD as the optimization objective is better.