Multiscale tribological modelling of a novel sliding cam transmission system for internal combustion engines

内燃机新型滑动凸轮传动系统的多尺度摩擦学建模

• 批准号: 2743993
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2743993
• 关键词: Multiscale; tribological; modelling; novel; sliding

Internal combustion engine transmission systems rely on pistons, crankshafts, and gearboxes to provide power from the combustion chamber to the axels. These machine components have been optimised thoroughly and are widely used industrially for a range of products, however different configurations of the transmission system have the potential to provide significant improvements in terms of energy efficiency and emissions reduction. This project intends to explore a novel transmission system for IC engines in collaboration with project partners G-Drill based in Greece. Their innovative concept aims to improve performance by replacement of a conventional transmission system with a sliding cam interface located directly between the combustor and gearbox. This creates several tribological challenges for the lubricated interfaces of such a device which need further investigation. New modelling approaches are also needed to bridge the gap between current capabilities and this innovative design concept.Aim: To investigate the multiscale tribological performance of a novel sliding cam transmission system by developing a multiscale model of the lubricated interfaces and comparing efficiency versus conventional internal combustion engines.Objectives: 1. Simulate the lubricated interfaces of a novel sliding cam transmission system using single scale computational methods. 2. Expand the simulation approach to incorporate multiscale phenomena such as the presence of surface features and asperity contact. 3. Determine the tribological system performance of the sliding cam system and compare efficiencies versus conventional designs. 4. Validate findings by collaborating with project partners to align simulation development with concurrent experimentation.

内燃机传动系统依靠活塞、曲轴和变速箱将动力从燃烧室提供给车轴。这些机器部件经过彻底优化，在工业上广泛用于一系列产品，但传动系统的不同配置有可能在能源效率和减排方面提供显着改进。该项目打算与希腊的项目合作伙伴 G-Drill 合作，探索一种新型的内燃机传动系统。他们的创新理念旨在通过直接位于燃烧器和变速箱之间的滑动凸轮接口替换传统的传动系统来提高性能。这给这种装置的润滑界面带来了一些摩擦学挑战，需要进一步研究。还需要新的建模方法来弥合当前能力与这种创新设计概念之间的差距。目标：通过开发润滑界面的多尺度模型并比较效率与传统内燃的效率，研究新型滑动凸轮传动系统的多尺度摩擦学性能发动机。目标： 1. 使用单尺度计算方法模拟新型滑动凸轮传动系统的润滑界面。 2. 扩展模拟方法以纳入多尺度现象，例如表面特征和粗糙接触的存在。 3. 确定滑动凸轮系统的摩擦学系统性能，并将效率与传统设计进行比较。 4. 与项目合作伙伴合作，使模拟开发与并行实验保持一致，从而验证研究结果。