Micro structure and run-in process influence on friction and wear intensity in the cam-tappet tribo-system including integral process and surface structuring developments

微观结构和磨合工艺对凸轮挺杆摩擦系统中摩擦和磨损强度的影响，包括整体工艺和表面结构开发

• 批准号: 200134726
• 负责人: Professor Dr.-Ing. Steffen Ihlenfeldt
• 金额: --
• 依托单位: Institut für Tribologie und Energiewandlungsmaschinen
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/200134726?language=en
• 关键词: Micro; structure; run; process; influence

The research project focuses on the tribological influences of microstructures in the cam-tappet-contact of modern combustion engines. The objective of the project is the evaluation of, via varia-ble fabrication methods applied surface textures by examination of the fluid-mechanical effects in thermo-elastohydrodynamic rolling contacts. The evaluation-criteria are based on friction- and wear-behavior during the running-in stage. The research method to be realized consists of nu-merical simulations and experimental analysis. The simulative prediction of the friction- and wear-behavior is based on a detailed, numerical model of the valve-operating mechanism, including the (elasto-)hydrodynamic lubrication in the tribological contacts and the dynamic tappet-motion. Ex-perimental studies on a high performance single-cam test-rig are initially realized with, via rapid-prototyping-method manufactured components. Concluding tests are performed for the specific evaluation of optimized manufacturing methods regarding the friction- and running-in-behavior.

该研究项目的重点是现代内燃机凸轮-凸轮-接触中微观结构的摩擦学影响。该项目的目标是通过检查热弹性流体动力学滚动接触中的流体机械效应，通过各种制造方法应用表面纹理进行评估。评价标准基于磨合阶段的摩擦和磨损行为。实现的研究方法包括数值模拟和实验分析。摩擦和磨损行为的模拟预测是基于气门操纵机构的详细数值模型，包括摩擦接触中的（弹性）流体动力润滑和动态挺杆运动。利用快速原型法制造的零件，初步实现了高性能单凸轮试验台的试验研究。进行总结性测试，以针对摩擦和磨合行为对优化的制造方法进行具体评估。