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.

内燃机传输系统依靠活塞，曲轴和变速箱来提供从燃烧室到Axels的动力。这些机器组件已经过彻底优化，并在工业上广泛用于一系列产品，但是传输系统的不同配置有可能在降低能源效率和排放方面提供显着改善。该项目旨在与基于希腊的Project Partners G-Drill合作探索IC发动机的新型传输系统。他们的创新概念旨在通过直接在燃烧器和变速箱之间的滑动凸轮界面替换传统的传输系统来提高性能。这为需要进一步研究的设备的润滑界面带来了一些摩擦学挑战。还需要采用新的建模方法来弥合当前功能与这种创新的设计概念之间的差距。IMP：通过开发润滑接口的多尺度模型以及比较效率与常规内部燃烧引擎的多尺度模型，调查新型滑动凸轮传输系统的多尺度摩擦学性能。使用新颖的速度传输方法。 2。扩展模拟方法，以结合多尺度现象，例如表面特征和天空接触的存在。 3。确定滑动凸轮系统的摩擦学系统性能，并比较效率与常规设计。 4。通过与项目合作伙伴合作以使模拟开发与并发实验相结合来验证发现。