具有非线性粘弹性的半物理热力瞬态滚动阻力模型

IF 2.1 4区 材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
Jukka Hyttinen, Rickard Österlöf, Jenny Jerrelind, Lars Drugge
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引用次数: 0

摘要

滚动阻力决定了卡车能耗的很大一部分。因此,有必要对影响滚动阻力的参数有一个良好的了解。本文提出了一个半物理热力学轮胎滚动阻力模型,该模型捕捉了滚动阻力的基本特性,如温度效应引起的瞬态变化和粘性特性的应变-振幅依赖性。此外,该模型还包括来自周围环境的冷却效应。仿真模型在每个时间步长同时得到轮胎温度和滚动阻力。采用Bergström-Boyce模型对橡胶的非线性粘弹性进行了建模,其中黏性蠕变函数随温度变化而缩放。轮胎的冷却采用对流冷却和辐射冷却两种方式。并对不同的材料参数及其物理意义进行了说明。此外,还举例说明了该模型在参数研究中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A semi-physical thermodynamic transient rolling resistance model with nonlinear viscoelasticity

A semi-physical thermodynamic transient rolling resistance model with nonlinear viscoelasticity

Rolling resistance dictates a large part of the energy consumption of trucks. Therefore, it is necessary to have a sound understanding of the parameters affecting rolling resistance. This article proposes a semi-physical thermodynamic tyre rolling resistance model, which captures the essential properties of rolling resistance, such as transient changes due to temperature effects and the strain-amplitude dependency of the viscous properties. In addition, the model includes cooling effects from the surroundings. Both tyre temperature and rolling resistance are obtained simultaneously in the simulation model for each time step. The nonlinear viscoelasticity in rubber is modelled using the Bergström–Boyce model, where the viscous creep function is scaled with temperature changes. The cooling of the tyre is considered with both convective and radiative cooling. Moreover, the article explains different material parameters and their physical meaning. Additionally, examples of how the model could be used in parameter studies are presented.

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来源期刊
Mechanics of Time-Dependent Materials
Mechanics of Time-Dependent Materials 工程技术-材料科学:表征与测试
CiteScore
4.90
自引率
8.00%
发文量
47
审稿时长
>12 weeks
期刊介绍: Mechanics of Time-Dependent Materials accepts contributions dealing with the time-dependent mechanical properties of solid polymers, metals, ceramics, concrete, wood, or their composites. It is recognized that certain materials can be in the melt state as function of temperature and/or pressure. Contributions concerned with fundamental issues relating to processing and melt-to-solid transition behaviour are welcome, as are contributions addressing time-dependent failure and fracture phenomena. Manuscripts addressing environmental issues will be considered if they relate to time-dependent mechanical properties. The journal promotes the transfer of knowledge between various disciplines that deal with the properties of time-dependent solid materials but approach these from different angles. Among these disciplines are: Mechanical Engineering, Aerospace Engineering, Chemical Engineering, Rheology, Materials Science, Polymer Physics, Design, and others.
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