超低粘度润滑油在高功率密度发动机中的磨损保护评估:新型磨损预测算法

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Friction Pub Date : 2024-05-25 DOI:10.1007/s40544-023-0854-3
Javier Blanco-Rodríguez, Jacobo Porteiro, José A. López-Campos, Martí Cortada-García, Silvia Fernández-Castejón
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引用次数: 0

摘要

几十年来,人们一直在通过大量的试错实验来研究耐久性和可靠性。然而,在许多应用领域中,这种方法的成本是无法接受的。在具有严重动态负载的润滑机器中,例如高功率密度发动机,模拟工具比密集试验具有明显优势。可以经济高效地模拟原型和多种情况,以评估不同的润滑油和发动机配置。本文介绍的工作基于经过验证的连杆轴颈轴承弹性流体力学(EHD)模拟模型,详细介绍了磨损研究。该模型通过连杆有限元模型(FEM)考虑了弹性变形。此外,由特定实验测试确定的多种润滑剂流变学和摩擦学相关性通过与模拟软件的交互作用被应用到模型中。相应地,还提出了一种新的磨损算法,用于预测基于高性能发动机典型工作范围的拟议磨损周期的磨损深度随时间的演变情况。最后的评估对 4 种不同的超低粘度润滑油在恶劣条件下的保护性能进行了比较。结果显示了磨损负荷和磨损深度在磨损周期内的变化情况。该评估是描述高功率密度发动机润滑油选择程序的关键。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Wear protection assessment of ultralow viscosity lubricants in high-power-density engines: A novel wear prediction algorithm

Wear protection assessment of ultralow viscosity lubricants in high-power-density engines: A novel wear prediction algorithm

Durability and reliability have been studied for decades through intensive trial-error experimentation. However, there are numerous fields of application where the costs associated with this approach are not acceptable. In lubricated machines with severe dynamic loads, such as high-power-density engines, simulation tools offer clear advantages over intensive testing. Prototypes and multiple scenarios can be cost-effectively simulated to assess different lubricants and engine configurations. The work presented here details the study of wear based on a validated elastohydrodynamic (EHD) simulation model of the connecting rod journal bearing. This model accounts for elastic deformation through a connecting rod finite element model (FEM). In addition, multiple lubricant rheological and tribological dependences, determined by specific experimental tests, are applied in the model through their interaction with the simulation software. Correspondingly, a novel wear algorithm is proposed to predict wear depth over time evolution along a proposed wear cycle based on the typical working ranges of high-performance engines. A final assessment is presented to compare 4 different ultralow-viscosity lubricants in their protective performance under severe conditions. The results show the evolution of the wear load and wear depth over the wear cycle. This evaluation is key to describing a lubricant selection procedure for high-power-density engines.

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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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