• 机械基础工程 •

### 伪刚体柔体耦合的新式免充气轮胎刚度分析

1. 南京航空航天大学能源与动力学院，南京，210016
• 出版日期:2021-05-10 发布日期:2021-05-28
• 通讯作者: 赵又群（通信作者），男，1968年生，教授、博士研究生导师。研究方向为车辆动态仿真与控制。E-mail:yqzhao@nuaa.edu.cn。
• 作者简介:张陈曦，男，1993年生，博士研究生。研究方向为机械结构设计、仿真分析等。E-mail:cxzhang19931994@163.com。
• 基金资助:
陆军装备预研专用技术项目(30105190505)；
中央高校基本科研业务费专项资金（NP2020407）

### Stiffness Analysis of New Type Non-pneumatic Tires Based on Pseudo-rigid-flexible Body Coupling Model#br#

ZHANG Chenxi;ZHAO Youqun;FENG Shilin;ZHENG Xin;XU Han

1. College of Energy & Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016
• Online:2021-05-10 Published:2021-05-28

Abstract: In view of the structural characteristics of new type pseudo-rigid non-pneumatic tires, a pseudo-rigid-flexible body coupling model was established to analyze the radial stiffness characteristics. The displacement equations of the plate spring and elastic wheel disks were coupled to solve the sinkage displacement and deformation of the tires, which were derived from pseudo-rigid body theory and elastic mechanics. The results show that there is linear relation between the sinkage displacements of pseudo-rigid non-pneumatic tires and the loads, and the tire radial stiffness is larger than ordinary pneumatic/non-pneumatic tires. Ride comfort of the tires is better when working at low speed and a little bit worse at high speed. To verify the above model, the finite element solution results were compared under the same boundary conditions. The results of the coupling model and the finite element method are close to each other, and the simulation time of the pseudo-rigid-flexible body coupling model is shorter. Finally, the radial stiffness of the tires was optimized by using the coupling model and the required design size parameters were obtained.