Engine tribology: minimizing friction in lightweight combustion engines

发动机摩擦学：最大限度地减少轻型内燃机的摩擦

• 批准号: 459178-2013
• 负责人: Alpas, Ahmet
• 金额: $ 4.37万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=576013
• 关键词: Engine; tribology; minimizing; friction; lightweight

Tribology is central to future developments in transport and energy efficient systems. The reduction in fuel consumption and control of emissions and in modern combustion engine components made of lightweight alloys require fundamental understanding of tribological processes at all scales. The proposed program will identify the micromechanisms associated with lightweight internal combustion engines, with an emphasis on determining the causes of friction losses and will advance a methodology to increase engine efficiency by minimizing these losses in critical components including pumps or rockers or cams etc. The research will encompass the following areas; i) the development of new testing methods to simulate wear and friction mechanisms that occur in internal combustion engines; ii) the delineation of wear, adhesion and friction micromechanisms from microstructural and atomistic points of view; iii) the design of interfaces that reduce friction in powertrain components based on the results of experimental and computational work. It is expected that the research will result in optimization of engineered coatings, including the thermal spray coatings and carbon based coatings that will reduce internal friction during ring/bore contact as well as in crank- and valve- train components under transient lubrication and steady state conditions. By predicting the properties of suitable coatings, and modeling their overall wear behaviour processing methods to create robust surfaces will be developed. The program will contribute training of two PhD students and one PDF per year.

摩擦学是未来运输和节能系统发展的核心。减少燃料消耗和控制排放以及由轻质合金制成的现代内燃机部件需要对所有尺度的摩擦学过程有基本的了解。该计划将确定与轻型内燃机相关的微观机制，重点是确定摩擦损失的原因，并将提出一种方法，通过最大限度地减少关键部件（包括泵、摇臂或凸轮等）的摩擦损失来提高发动机效率。i）开发新的测试方法来模拟内燃机中发生的磨损和摩擦机制; ii）从微观结构和原子观点描绘磨损、粘附和摩擦微观机制; iii）基于实验和计算工作的结果，设计减少动力系统部件中的摩擦的接口。 预计该研究将导致工程涂层的优化，包括热喷涂涂层和碳基涂层，这些涂层将在环/孔接触期间以及在瞬态润滑和稳态条件下的曲柄和气门机构部件中减少内摩擦。 通过预测合适涂层的性能，并对其整体磨损行为进行建模，将开发出创建坚固表面的加工方法。该计划将有助于每年培训两名博士生和一名PDF。