Asperity level frictional interactions of cylinder bore materials and lubricant composition
Asperity level frictional interactions of cylinder bore materials and lubricant composition
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DOI：
10.1177/1350650120903928
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发表时间：
2020-02
期刊：
影响因子：
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通讯作者：
Michael D. Forder;J. Umer;N. Morris;R. Rahmani;S. Howell-Smith;H. Rahnejat
中科院分区：
文献类型：
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作者：
Michael D. Forder;J. Umer;N. Morris;R. Rahmani;S. Howell-Smith;H. Rahnejat
赛车内燃机的寄生摩擦损失对其性能有不利影响。这些损失的很大一部分发生在活塞-气缸系统中。本文研究了汽缸缸孔表面材料与典型润滑油基础成分（聚α -烯烃和聚烯烃）以及一种全配方润滑油的相容性。采用横向力显微镜测量纳米边界摩擦。研究了材料性能、纳米尺度粗糙度和润滑剂种类对摩擦产生机理的影响。研究了用于高性能发动机的先进气缸材料、涂层和润滑油分子种类，以及迄今为止尚未在文献中报道的综合方法。
Parasitic frictional losses in internal combustion engines of race vehicles adversely affect their performance. A significant proportion of these losses occur within the piston-cylinder system. This paper presents a study of the compatibility of cylinder bore surface materials with typical lubricant base constituent stock (poly alpha olefin and polyolester) as well as a fully formulated lubricant. Nanoscale boundary friction is measured using lateral force microscopy. The effect of material properties, nanoscale roughness and lubricant species upon underlying mechanisms of generated friction is presented. Advanced cylinder materials and coatings and lubricant molecular species used for high performance engines are investigated, and an integrated approach not hitherto reported in literature.