非充气轮胎气动特性研究

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL

Mechanics & Industry Pub Date : 2021-01-01 DOI:10.1051/MECA/2021026

L. Hong, Yilun Xu, Chenlong Si, Yang Yong

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引用次数: 4

摘要

在过去的十年中，非充气轮胎(NPT)的应用有所增加。研究带NPT车轮的气动特性对提高操控性和降低油耗具有重要意义。本文首先利用CATIA软件对原始NPT模型进行仿真，并利用Fluent软件研究NPT结构参数对气动特性的影响。仿真计算结果表明:减小轮胎宽度和轮辐长度，增大轮辐厚度可以有效降低气动系数。然后，利用MIRA模型研究了在行驶工况下NPT对整车气动特性的影响。研究表明:NPT增加了整车的阻力，车轮处63.1%的阻力由前轮提供。最后进行风洞试验，研究优化后的NPT模型在静态条件下的气动特性，验证仿真计算结果。

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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A research on aerodynamic characteristics of non-pneumatic tire

Application of non-pneumatic tire (NPT) has been increased during the last decade. The aerodynamic characteristics of the wheel with NPT has been studied due to significance on improvement of handling and reduction of fuel consumption. In this paper, first, an original NPT model was simulated by CATIA software, and the influence of NPT structural parameters on aerodynamic characteristics was studied by Fluent software. The simulation calculation results showed that: the reduction of tire width and spoke length, and the increase of spoke thickness can effectively decrease aerodynamic coefficient. Then, the MIRA model was used to study the influence of NPT on aerodynamic characteristics of the whole vehicle under driving conditions. Studies showed that: NPT increased the resistance of the whole vehicle, and 63.1% of the resistance at the wheels was provided by the front wheels. Finally, the wind tunnel test was conducted to study aerodynamic characteristics of the optimized NPT model under static conditions and verify the simulation calculation.

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来源期刊

Mechanics & Industry ENGINEERING, MECHANICAL-MECHANICS

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： An International Journal on Mechanical Sciences and Engineering Applications With papers from industry, Research and Development departments and academic institutions, this journal acts as an interface between research and industry, coordinating and disseminating scientific and technical mechanical research in relation to industrial activities. Targeted readers are technicians, engineers, executives, researchers, and teachers who are working in industrial companies as managers or in Research and Development departments, technical centres, laboratories, universities, technical and engineering schools. The journal is an AFM (Association Française de Mécanique) publication.