仿生蛛网安全轮胎模态特性及其影响因素分析  

Analysis on modal characteristics and influencing factors of bionic cobweb safety tire

作　　者：马洪旺 姜洪旭 李崇兵 杜现斌 韩宝坤[3] MA Hongwang;JIANG Hongxu;LI Chongbing;DU Xianbin;HAN Baokun(College of Transportation,Shandong University of Science and Technology,Qingdao 266590,China;Prinx Chengshan(Shandong)Tire Co.,Ltd.,Rongcheng 264300,China;College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学交通学院,山东青岛266590 [2]浦林成山(山东)轮胎有限公司,山东荣成264300 [3]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《重庆理工大学学报（自然科学）》2022年第9期1-7,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：中国博士后科学基金面上项目(2021M700554)。

摘　　要：为消除传统充气轮胎存在的爆胎、穿刺等安全隐患,提出一种具有仿生蛛网结构的非充气安全轮胎。建立了包含橡胶材料超弹性、大变形等特征的仿生蛛网结构安全轮胎有限元模型,并对其模态特征进行分析,得到蛛网安全轮胎横向、径向各阶振型及其固有频率。采用单一变量法对轮辐厚度、支撑单元体数量以及胎面厚度等因素对安全轮胎固有频率的影响进行了分析。结果表明:该安全轮胎径向各阶振型呈现花瓣型,横向各阶振型呈现多扭特征;随着辐板厚度的增长,各阶径向和横向固有频率均有所增大,但辐板厚度对径向固有频率的影响大于横向固有频率。网片厚度对低阶固有频率的影响相对较小,支撑单元体数目的增加使各阶径向和横向固有频率值逐渐增大。研究结果为仿生蛛网安全轮胎的结构优化提供了参考。As the only part of the interaction between a vehicle and the road, the performance of the tires has an important impact on the handling stability, trafficability and safety of thevehicle.At present, the traditional pneumatic tires still occupy the dominant position in the market, but their inherent structural characteristics are easy to lead to punctures, tire blowouts and other potential safety hazards, thus affecting the safety and stability of the vehicles on the road.In order to eliminate the potential safety hazards such as tire burst and punctures in traditional pneumatic tires, this paper proposes a non-pneumatic safety tire with a bionic cobweb structure. The safety tire is not only puncture and explosion preventive, but also has excellent cushioning and vibration attenuation and grounding characteristics.The design principle and structure composition of non-pneumatic tires with a bionic cobweb structure are analyzed. Based on the finite element method, the finite element model of the bionic cobweb safety tires, which includes the characteristics of rubber material hyperelasticity and large deformation, is established, and the modal characteristics are analyzed to obtain the transverse and radial vibration modes and natural frequencies of the bionic cobweb safety tires. The single variable method is used to analyze the influence of the spoke thickness, the number of supporting units and the tread thickness on the natural frequency of the safety tires. The research results show that the radial vibration modes of the safety tires are petal shaped, and the transverse vibration modes are multi torsional. With the increase of the spoke plate thickness, both the radial and transverse natural frequencies of each order increase. However, the influence of the spoke plate thickness on the radial natural frequency is greater than that of the transverse natural frequency. The influence of mesh thickness on the first two orders of radial and transverse natural frequencies is relatively small, but the influence on the

关 键 词：非充气轮胎 振动特性 有限元 模态分析 固有频率 

分 类 号：U463.3[机械工程—车辆工程]