新型蝙蝠型负泊松比微结构非充气轮胎设计
Design on novel non-pneumatic tire embedded with bat-shaped cellular structure with negative Poisson's ratio characteristics
赵颖 1周科名 1杜卓栋 1贾正阳 2郝纪波 1胡兴军3
作者信息
- 1. 西南大学 工程技术学院,重庆 400715
- 2. 西南大学 蚕桑纺织与生物质科学学院,重庆 400715
- 3. 吉林大学 汽车工程学院,长春 130025
- 折叠
摘要
为解决传统充气轮胎易爆胎、易刺破等问题,提出一种新型蝙蝠形微结构(bat-shaped cellular structure,BSCS)非充气轮胎.首先,推导了BSCS微元胞的相对密度、单位质量吸能和峰值力的理论力学模型,并开展准静态压缩试验验证了力学模型和有限元仿真模型的准确性.然后,建立了BSCS非充气轮胎有限元模型,并利用准静态压缩试验验证了轮胎有限元模型的准确性.最后,对非充气轮胎开展接地性能、三向刚度、模态分析、侧偏特性和稳态滚动的仿真分析,其中径向刚度为151.37 N/mm、侧向刚度为281.88 N/mm、纵向刚度为686.05 N/mm.仿真结果表明,所提出的BSCS非充气轮胎具有优异的力学承载性和可靠性,为非充气轮胎的设计提供了新的思路.
Abstract
To address the bursts and punctures of traditional pneumatic tires,this paper proposes a novel non-pneumatic tire with bat-shaped cellular structure(BSCS).First,the theoretical mechanical predictions comprising the relative density,specific energy absorption,and peak force for BSCS are derived,and quasi-static compression tests on BSCS sample is executed to verify the accuracy of mechanical models and simulation models.Then,the finite element model(FEM)of BSCS non-pneumatic tires is built,and the accuracy of tire FEM is verified with the adoption of quasi-static compression test.Finally,simulation analyses on grounding performance,three-way stiffness,modal analysis,cornering characteristics and steady-state rolling of non-pneumatic tires are conducted.Our results show the radial stiffness is 151.37 N/mm,the lateral rigidity 281.88 N/mm,and the longitudinal stiffness 686.05 N/mm on the proposed BSCS non-pneumatic tires,demonstrating they achieve excellent mechanical bearing capacity and reliability,which may provide insights for designing non-pneumatic tires.
关键词
负泊松比微结构/非充气轮胎/力学性能/优化设计/仿真分析Key words
cellular structure with negative Poisson's ratio/non-pneumatic tire/mechanical properties/optimization design/simulation analysis引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据