期刊
COMPOSITE STRUCTURES
卷 187, 期 -, 页码 27-35出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2017.12.044
关键词
Non-pneumatic tire; Honeycomb spokes; Contact pressure; Rolling resistance
资金
- National Natural Science Foundation of China [11472204]
- Fundamental Research Funds for the Central Universities
- Open Fund of State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining & Technology (Beijing) [SKLGDUEK1516]
Non-pneumatic tires (NPTs) have wide application prospects due to their advantages of no run-flat, no need of air pressure maintenance, and low rolling resistance. In this paper, the static and dynamic behaviors of NPTs with different honeycomb spokes were investigated. Based on the static behavior of three types of NPTs with the same cell wall thickness of honeycomb or the same reference load carrying capacity, it is shown that the maximum stresses in spokes and tread of a NPT are much lower than that of traditional pneumatic tires, but its load carrying capacity is higher than the latter. In comparison with the dynamic behavior of three types of NPTs designed with the same load carrying capacity, it is found that the stress level in spokes and tread under dynamic loading are higher than that under static loading. The rolling resistance of NPTs with the smallest cell expanding angle is lowest, which is due to the lowest mass and smallest deformation of honeycomb spokes. Taking all these factors into account, it is suggested that an optimal NPT in applications is one with a small cell expanding angle and wall thickness.
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