Effect of Different Road Obstacles on the Structural Behavior of a Honeycomb Nonpneumatic Tire

IF 0.9 Q4 ENGINEERING, MECHANICAL

Tire Science and Technology Pub Date : 2021-07-30 DOI:10.2346/tire.21.20017

A. Ashofteh, A. Shahdadi

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引用次数: 0

Abstract

The nonpneumatic tire (NPT), as the name suggests, is a type of tire that does not use air to support the load. Because of their outstanding advantages, such as durability and low rolling resistance, these tires have attracted much interest. The study of NPTs has drawn considerable recent attention, and some research was conducted to investigate their mechanical response. However, these studies did not consider an analysis of an NPT against obstacles. Therefore, in this article, the static and dynamic behaviors of an NPT with honeycomb structures rolling over different obstacles are investigated using numerical simulation. The flexible spokes, which are the most important part of NPTs, are assumed to have a honeycomb structure with the same cell wall thickness and angle. Based on the mesostructures hypothesis, these spokes are considered to be made of polyurethane material. To perform a more precise analysis, various parameters such as nonlinear properties of the material and contact condition are taken into account to establish the finite element model. The results, which can be used as a benchmark and are suitable for design purposes, are presented elaborately.

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不同路面障碍物对蜂窝状非充气轮胎结构性能的影响

顾名思义，非充气轮胎（NPT）是一种不使用空气来支撑负载的轮胎。由于其突出的优点，如耐用性和低滚动阻力，这些轮胎引起了人们的极大兴趣。NPTs的研究最近引起了相当大的关注，并且进行了一些研究来研究它们的机械响应。然而，这些研究没有考虑对《不扩散条约》的障碍进行分析。因此，本文通过数值模拟研究了蜂窝结构NPT在不同障碍物上滚动的静态和动态行为。柔性辐条是NPTs最重要的部分，被认为具有相同单元壁厚度和角度的蜂窝结构。基于细观结构假说，这些辐条被认为是由聚氨酯材料制成的。为了进行更精确的分析，在建立有限元模型时，考虑了材料的非线性特性和接触条件等各种参数。详细介绍了可作为基准的结果，这些结果适合于设计目的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tire Science and Technology ENGINEERING, MECHANICAL-

CiteScore

2.10

自引率

0.00%

发文量

期刊介绍： Tire Science and Technology is the world"s leading technical journal dedicated to tires. The Editor publishes original contributions that address the development and application of experimental, analytical, or computational science in which the tire figures prominently. Review papers may also be published. The journal aims to assure its readers authoritative, critically reviewed articles and the authors accessibility of their work in the permanent literature. The journal is published quarterly by the Tire Society, Inc., an Ohio not-for-profit corporation whose objective is to increase and disseminate knowledge of the science and technology of tires.