首页|Investigation on mechanical characteristics of non-pneumatic tire with rhombus structure under complex pavement conditions
Investigation on mechanical characteristics of non-pneumatic tire with rhombus structure under complex pavement conditions
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NSTL
Elsevier
Non-pneumatic tires (NPTs) have gained more and more attention in recent years due to the advantages of no run-flat, maintenance-free and excellent load-bearing capacity. In this paper, a mechanical model of rhombic porous structure was derived based on the theory of the hexagonal honeycomb structure, and the difference of mechanical characteristics for rhombic NPT tread on horizontal pavement as well as complex pavement was studied. The results show that the average contact pressure of NPT with rhombic structure on horizontal road is much lower than that of pneumatic tire, the shape of its spoke bearing area is inverted trapezoid, and the stress concentration phenomenon is formed in the contact part corresponding to the connection between spokes and tread at different contact positions. Furthermore, the vertical displacement and contact pressure of NPT are decoupled on complex pavement. The maximum stress concentration point is shifted from the tire surface to the spoke-tread connection and then to the spokes of the rhombic bearing structure as the contact area between the tire and the ground increases. This study provides guidance for structural optimization of NPT applied to complex working conditions.
NSTL
Elsevier
