所属单位：机电工程学院

教研室：数控教研室

发表刊物：OPTIK

项目来源：省、市、自治区科技项目

关键字：Rubber tread block; Calculation method; Rolling resistance; Full-field strain;Viscoelasticity

摘要：Background: 70% energy consumption of automobile tyre comes from the energy consumption generated by the viscoelasticity of tread rubber. The non-contact calculation method of rolling resistance of tire tread rubber block is studied, and the relationship between rolling resistance and global strain is analyzed. Materials and methods: A non-contact test bench for mechanical property of rubber tread block is developed. Stress-strain relationship and full-field distribution characteristics are obtained by means of digital image correlation under the influence of load and velocity. A Fourier series model is proposed to describe the non-linear viscoelasticity of rubber material. The model parameters is identified by using non-linear least squares. On this basis, the rolling resistance and the rolling resistance coefficient are calculated. Results: The experimental results show that the nonlinear fitting error of Fourier series model is less than 3%. The rolling resistance coefficient of rubber tread decreases with the increase of speed and increases with the increase of wheel load. The low strain areas is distributed at the trailing edge of contact zone, but the high strain is distributed at the leading edge of contact zone. Conclusion: A new method for calculating the rolling resistance of rubber materials is presented. The results show that the rolling resistance is positively correlated with the high strain distribution of tread under the influence of velocity. Under the influence of load, it is positively correlated with the transverse deformation of tread.

合写作者：王英明,高学亮

第一作者：刘亚梅

论文类型：期刊论文

期号：269

页面范围：1

字数：1

是否译文：否

发表时间：2022-08-19