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

作　　者：赵颖 周科名 杜卓栋 贾正阳 郝纪波 胡兴军[3] ZHAO Ying;ZHOU Keming;DU Zhuodong;JIA Zhengyang;HAO Jibo;HU Xingjun(College of Engineering and Technology,Southwest University,Chongqing 400715,China;College of Sericulture,Textile an Biomass Sciences,Southwest University,Chongqing 400715,China;College of Automotive Engineering,Jilin University,Changchun 130025,China)

机构地区：[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

出　　处：《重庆理工大学学报（自然科学）》2024年第7期59-70,共12页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金青年科学基金项目(52202451);中国科协青年人才托举工程项目(2021QNRC001)。

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。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 

分 类 号：U463.34[机械工程—车辆工程]