>A theoretical investigation of the hydrodynamic lubrication of the top compression piston ring in '/> Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines
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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology >Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines
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Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines

机译：大型两冲程船用柴油发动机沿气缸套管润滑油输送不同活塞环曲率的研究

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>A theoretical investigation of the hydrodynamic lubrication of the top compression piston ring in a large two-stroke marine diesel engine is presented. The groove mounted piston ring is driven by the reciprocal motion of the piston. The ring shape follows a circular geometry and the effect of changes in radii is analysed. A numerical model based on the finite difference method in 1D has been developed for solving Reynolds equation in combination with the load equilibrium equation together with flow continuity between the piston ring surface and liner for analysis of the lubricant transport. The cyclic variation throughout one stroke is presented for the minimum film thicknesses at different interesting locations of the piston ring surface together with the friction and the pressure distribution history. The aforementioned parameters have been investigated numerically. The numerical results are presented and discussed.
机译： >一个理论调查提出了大型双行程船用柴油发动机中顶部压缩活塞环的流体动力润滑。凹槽安装的活塞环由活塞的往复运动驱动。环形遵循圆形几何形状，分析了半径变化的效果。已经开发了一种基于1D中的有限差分方法的数值模型，用于求解雷诺等式与负载平衡方程组合在一起，与活塞环表面和衬里之间的流动连续性，用于分析润滑剂运输。在活塞环表面的不同有趣位置处的最小膜厚度与摩擦和压力分布历史一起呈现整个行程的循环变化。已经数值研究了上述参数。呈现和讨论了数值结果。

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