| 伪刚体柔体耦合的新式免充气轮胎刚度分析 |
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| 引用本文： | 张陈曦,赵又群,冯世林,郑鑫,徐瀚. 伪刚体柔体耦合的新式免充气轮胎刚度分析[J]. 中国机械工程, 2021, 32(9): 1051-1060,1072. DOI: 10.3969/j.issn.1004-132X.2021.09.006 |
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| 作者姓名： | 张陈曦 赵又群 冯世林 郑鑫 徐瀚 |
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| 作者单位： | 南京航空航天大学能源与动力学院，南京，210016 |
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| 基金项目： | 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） |
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| 摘 要： | 针对一种新式伪刚性免充气轮胎的结构特点,建立了一种分析其径向刚度特性的伪刚体柔体耦合模型.将伪刚体理论得到的轮胎板簧位移方程和弹性力学得到的輮轮形变方程进行耦合,解得轮胎的下沉量与变形情况.结果表明:伪刚性免充气轮胎的下沉量与载荷成正比,其径向刚度比一般普通充气/非充气轮胎大,低车速时平顺性好,高车速时平顺性稍有欠缺....
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| 关 键 词： | 免充气轮胎 径向刚度 伪刚体建模 弹性力学 半逆解法 刚柔耦合 |
Stiffness Analysis of New Type Non-pneumatic Tires Based on Pseudo-rigid-flexible Body Coupling Model#br# |
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| Affiliation: | College of Energy & Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016 |
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| 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. |
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| Keywords: | non-pneumatic tire radial stiffness pseudo-rigid body modeling elastic mechanics semi-inverse method rigid-flexible coupling |
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