Insights into modeling approaches for boundary- and mixed-lubricated conditions

IF 1.5 4区工程技术 Q3 ENGINEERING, MECHANICAL Industrial Lubrication and Tribology Pub Date : 2024-02-07 DOI:10.1108/ilt-03-2023-0076

Rajesh Shah, Blerim Gashi, Vikram Mittal, Andreas Rosenkranz, Shuoran Du

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Abstract

Purpose

Tribological research is complex and multidisciplinary, with many parameters to consider. As traditional experimentation is time-consuming and expensive due to the complexity of tribological systems, researchers tend to use quantitative and qualitative analysis to monitor critical parameters and material characterization to explain observed dependencies. In this regard, numerical modeling and simulation offers a cost-effective alternative to physical experimentation but must be validated with limited testing. This paper aims to highlight advances in numerical modeling as they relate to the field of tribology.

Design/methodology/approach

This study performed an in-depth literature review for the field of modeling and simulation as it relates to tribology. The authors initially looked at the application of foundational studies (e.g. Stribeck) to understand the gaps in the current knowledge set. The authors then evaluated a number of modern developments related to contact mechanics, surface roughness, tribofilm formation and fluid-film layers. In particular, it looked at key fields driving tribology models including nanoparticle research and prosthetics. The study then sought out to understand the future trends in this research field.

Findings

The field of tribology, numerical modeling has shown to be a powerful tool, which is both time- and cost-effective when compared to standard bench testing. The characterization of tribological systems of interest fundamentally stems from the lubrication regimes designated in the Stribeck curve. The prediction of tribofilm formation, film thickness variation, fluid properties, asperity contact and surface deformation as well as the continuously changing interactions between such parameters is an essential challenge for proper modeling.

Originality/value

This paper highlights the major numerical modeling achievements in various disciplines and discusses their efficacy, assumptions and limitations in tribology research.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2023-0076/

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对边界和混合润滑条件建模方法的见解

目的摩擦学研究是一项复杂的多学科研究，需要考虑许多参数。由于摩擦学系统的复杂性，传统实验既耗时又昂贵，因此研究人员倾向于使用定量和定性分析来监测关键参数，并使用材料表征来解释观察到的依赖关系。在这方面，数值建模和模拟为物理实验提供了一种经济有效的替代方法，但必须通过有限的测试进行验证。本文旨在重点介绍与摩擦学领域相关的数值建模方面的进展。作者首先考察了基础研究（如 Stribeck）的应用，以了解当前知识集的差距。然后，作者评估了与接触力学、表面粗糙度、三膜形成和流膜层有关的一些现代发展。特别是，它考察了推动摩擦学模型的关键领域，包括纳米粒子研究和假肢。研究结果表明，在摩擦学领域，数值建模是一种强大的工具，与标准的台架试验相比，它既省时又经济。从根本上说，相关摩擦学系统的表征源于斯特里贝克曲线中指定的润滑状态。对摩擦薄膜的形成、薄膜厚度的变化、流体特性、表面接触和表面变形以及这些参数之间不断变化的相互作用进行预测，是正确建模所面临的基本挑战。

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来源期刊

Industrial Lubrication and Tribology 工程技术-工程：机械

CiteScore

3.00

自引率

18.80%

发文量

129

审稿时长

1.9 months

期刊介绍： Industrial Lubrication and Tribology provides a broad coverage of the materials and techniques employed in tribology. It contains a firm technical news element which brings together and promotes best practice in the three disciplines of tribology, which comprise lubrication, wear and friction. ILT also follows the progress of research into advanced lubricants, bearings, seals, gears and related machinery parts, as well as materials selection. A double-blind peer review process involving the editor and other subject experts ensures the content''s validity and relevance.