Natural rubber, as we usually call it, refers to natural latex collected from rubber trees. It is composed of curing, drying and
The stress distribution of the non-pneumatic tire optimized by the rubber and plastic products manufacturer under the static load grounding condition is shown in Figure 3-6. At this time, the maximum stress borne by the tire is 48.22 MPa, which exceeds the common stress range of rubber and plastic products (15-30 MPa) 69. The support of the non-pneumatic tire will be damaged. It can be seen that this tire structure cannot meet the load bearing requirements.
The grounding pressure distribution of the non-pneumatic tire optimized by the rubber and plastic products manufacturer under static load is shown in Figure 3-7, and the gray part is the non-contact part. The maximum ground pressure of the non-pneumatic tire model is 3.41 MPa, and the ground pressure is mainly distributed near the centerline of the tread, with obvious stress concentration. This shows that the non-pneumatic tire only contacts the center of the tread with the ground, and the tire shoulder does not contact the ground. The tire ground area is small, the unit ground pressure is large, and the load distribution is uneven, which will lead to uneven wear of the tire during driving and affect its driving mileage.
The stiffness curve of non-pneumatic tire and pneumatic tire optimized by rubber and plastic products manufacturers under static load is shown in Figure 3-8. The difference between the two is obvious, and the stiffness of non-pneumatic tire is significantly smaller. It shows that the load carrying capacity of the non-pneumatic tire optimized by the rubber and plastic products manufacturer is low and cannot meet the performance requirements of the same size pneumatic tire.