Modeling and Simulation
Vol. 07  No. 03 ( 2018 ), Article ID: 26263 , 7 pages
10.12677/MOS.2018.73014

Influence of Tire Profile Constraints on Finite Element Analysis

Lingxin Zhang1, Daqian Zhu2, Yonghua Li3

1Product Research and Development Department, Aelus TYRE CO., LTD., Jiaozuo Henan

2School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang Jiangsu

3Kunshan Tian Zheng Precision Instrument Co., Ltd., Kunshan Jiangsu

Received: Jul. 11th, 2018; accepted: Jul. 25th, 2018; published: Aug. 6th, 2018

ABSTRACT

Finite element analysis (FEA) technology has been widely used in the tire industry, but how to obtain a reliable tire model easily and accurately still deserves to be studied. In this paper, we mainly study the influence of different constraints of the tire cross-section on the FEA of tire. Taking the 205/55R16 semi-steel radial tire as an example, the tire cross section under the free state and the constrained state with the rim plate was surveyed, and the finite element model was established. In the establishment of the finite element model, the Neo-Hooke constitutive model was chosen to describe the rubber material and the Rebar model was selected to describe the rubber-cord material. Finite element analysis of the contact patch, radial stiffness and inflated outer contour of the tire is carried out to compare with the actual tire test results. Hence, we can find a more reasonable modeling method. The results show that for the inflatable outer contour, the cross-section in the constrained state of the rim meets the modeling requirements better. For the contact patch and radial stiffness, the cross-section under the free state is more suitable for the modeling requirements.

Keywords:Radial Tire, Cross Section Mapping, FEA, Contact Patch

1风神轮胎股份有限公司产品研发部，河南 焦作

2江苏大学汽车与交通工程学院，江苏 镇江

3昆山天正精密仪器有限公司，江苏 昆山

1. 引言

2. 有限元模型的建立

2.1. 有限元模型的信息

2.2. 有限元模型的边界条件

Figure 1. Two-dimensional tire model

Figure 2. Boundary conditions

3. 结果与讨论

3.1. 充气外轮廓

Figure 3. Comparison of inflatable sections (left is free state, right is constrained state)

Figure 4. Three-dimensional tire model

3.2. 接地印迹

Table1. Comparison of the data of the inflatable outer contour

Figure 5. Contact patch of a model built with a section under constrained state

Figure 6. Contact patch of a model built with a section under free state

3.3. 径向刚度

Table 2. Comparison of data of evaluation index of contact patch

Table 3. Comparison of data of radical stiffness

Figure 7. Radial stiffness of model built with section under free state or constrained state

$径向刚度=\frac{径向载荷}{径向位移}$ (1)

4. 结论

Influence of Tire Profile Constraints on Finite Element Analysis[J]. 建模与仿真, 2018, 07(03): 113-119. https://doi.org/10.12677/MOS.2018.73014

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