仿驯鹿足底形貌胎面单元对轮胎防滑性能影响分析  

Analysis for effect of tire tread element of imitation reindeer plantar morphology on tire anti-skid performance

作　　者：张锐 李国玉 乔钰 江磊[2] 李建桥 Zhang Rui;Li Guoyu;Qiao Yu;Jiang Lei;Li Jianqiao(Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China;China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]吉林大学工程仿生教育部重点实验室,长春130022 [2]中国北方车辆研究所,北京100072

出　　处：《农业工程学报》2019年第7期47-54,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金面上项目(51675221);国家自然科学基金重点支持项目(91748211);吉林省科技发展计划项目(20180101077JC)

摘　　要：轮胎胎面单元形貌结构对冬季轮胎防滑性能提升至关重要。为提高轮胎防滑性能,基于驯鹿足部特征,运用工程仿生技术,设计了有棱纹和无棱纹仿生防滑胎面单元。采用冰面附着试验和有限元数值模拟,与同尺寸常规人字形胎面单元比较,对仿生防滑胎面单元的防滑性能进行了分析。在试验低压状态下(压强≤0.02MPa)通过冰面与3种胎面单元的附着试验,结果表明在相同的速度、温度和压力条件下无棱纹仿生胎面单元摩擦系数最高,是人字形胎面单元的1.04～1.26倍。通过有限元数值分析,在低压0.02 MPa作用下,有棱纹仿生胎面单元、无棱纹仿生胎面单元和人字形胎面单元下的冰表面温度相对于初始温度分别升高了0.21、0.66和0.54℃,无棱纹仿生胎面单元温度升高最大,表明在低压条件下,无棱纹仿生胎面单元防滑性能最好。在高压状态(压强=2 MPa),有限元分析发现有棱纹仿生胎面单元、无棱纹仿生胎面单元和人字形胎面单元下的冰表面温度相对于初始温度分别升高了7.76、4.07和3.39℃,有棱纹仿生胎面单元升高温度最大,表明在高压状态下,有棱纹仿生胎面单元防滑性能最好。无棱纹仿生胎面单元和有棱纹仿生胎面单元分别在低压和高压状态下具有优良的防滑特性。该研究可为轮胎胎面单元的冰面防滑设计提供参考。Tires are very important on the performance of automobiles.The tread structure guarantees that the vehicle and the road surface have a good grasp,so as to play the traction performance and braking effect of the vehicle.The paper based on Reverse Engineering technology,the characteristic structure of reindeer feet was applied to the design of tread element structure,which could effectively improve the passing performance of tires on ice.In order to improve the anti-skid performance of tire,based on the mathematical model of reindeer’s plantar morphology,the bionic ribbed tread element and bionic non-ribbed tread element were designed by engineering bionics technology.Based on reverse engineering,the inner and outer edge curve of reindeer sole was simplified as a mathematical function of characteristic curve,and the reconstructed model of convex crown was transformed into a 3-dimensional model.2 bionic anti-skid tread elements and herringbone tread elements were established in Solidworks software,combining with the microstructure of convex crown.The adhesion test of tread element and ice was carried out on UTM(QT-1090)linear friction tester.The thermo-mechanical coupling between tread element and ice was established by finite element analysis software ABAQUS.Moreover,the ice surface temperature of 3 tread elements under low pressure of 0.02 MPa and temperature of-11℃was analyzed.The anti-skid performance of bionic trad elements were analyzed by ice adhesion test and Finite Element Method(FEM),compared with the same size conventional herringbone tread element.Under the condition of low pressure(pressure≤0.02 MPa),the 3 kinds of tread elements with self-made ice block was tasted through the ice adhesion test.The result showed that the Dynamic Coefficient of Friction(DCOF)of bionic non-ribbed tread element was the highest at the same velocity,temperature and pressure.It was 1.04-1.26 times herringbone tread element.Through the finite element analysis,it was found that under the low pressure(pressure=0.02 MPa),th

关 键 词：仿生 设计 计算机仿真 驯鹿足底形貌 车辆轮胎 仿生胎面单元 冰面 防滑性能 

分 类 号：TB17[生物学—生物工程]