In view of the situation of wear and oil deposition on piston pin bore found during diesel engine test,a new design method for optimizing the surface stress distribution of piston pin bore was presented based on the analysis of pin bore loading capacity and a mixed lubrication model.
针对某高负荷柴油发动机活塞在试验中出现销孔磨损及机油粘结的现象,基于对销孔表面承载和混合润滑模型的分析,提出了优化销孔表面应力分布的曲面设计方法。
Boring a oval piston pine hole(OPPH) at rotating speed of 3 000 r/min,a boring bar must work with feed frequency of 100Hz.
3 000 r/m in下加工椭圆形活塞异形销孔,要求刀杆的进刀频率为100Hz,普通的机械机构难以适应这种要求,提出了一种基于磁致伸缩材料的高频响伺服刀杆结构。