Analysis of Travel Performance of Pneumatic Tire on Unpaved Road by Discrete-finite Element Method

作者：Zheng, Zu-Mei; Zang, Meng-Yan^*; Zeng, Hai-Yang

来源：Acta Armamentarii, 2017, 38(9): 1822-1829.

DOI：10.3969/j.issn.1000-1093.2017.09.020

• Contact detection algorithm
• Loading condition
• PID controllers
• Pneumatic tires
• Running resistance
• Simulated results
• Slip condition
• Travel performance

A combined discrete-finite element method is proposed to simulate the interaction between the pneumatic tire and the granular sand, where the continuum based finite element method is used for the pneumatic tire and the discrete element method is used for the free-flowing particles. Interactions between the pneumatic tire and the sand are described by using a contact detection algorithm. A PID-controller model based on automatic control theory is applied on the base of forced-slip principle to ascertain the loading conditions of tire. A corresponding numerical analysis code is implemented into the in-house developed code, named ORV-SAND, to simulate the tire travel performance. Travel parameters of pneumatic tires with different tread patterns (i.e. smooth and block), such as gross tractive force, drawbar pull, running resistance and sinkage, are investigated under different slip conditions. The simulated results are basically corresponded with the experimental results. It is demonstrated that the proposed discrete-finite element method and the numerical method have enormous potential in studying the interaction between the pneumatic tire and the granular sand.

• 出版日期2017-9-1
• 单位华南理工大学