Abstract: To investigate the influence of camber angle on the cornering characteristics of the catenary non-pneumatic wheel, the wheel structure and bearing mechanism were analyzed. The brush theory model under the combined conditions of camber and cornering was established based on the assumption that the elastic characteristics of catenary non-pneumatic wheel are all concentrated in the tread, which has brush deformation characteristics. The camber and cornering characteristics test was carried out with tire dynamic test rig, and the experimental results and the analytical results of the theory model were compared and discussed in detail. The results show that the established theoretical model can accurately express the camber and cornering characteristics of the catenary non-pneumatic wheel. Moreover, the existence of the camber angle will increase the lateral force and decrease the self-align moment when the camber and sideslip angle are both positive or negative; otherwise, the lateral force will be reduced and the self-align moment will be increased. This research provides a theoretical guidance for the structure optimization and the modeling of the catenary non-pneumatic wheel under the combined conditions.

Key words: run-flat tire, camber, cornering, brush model