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首页> 外文会议>Proceedings of the 2009 spring technical conference of the ASME Internal Combustion Engine Division >A NUMERICAL SIMULATION OF THE COUPLING BETWEEN DYNAMIC BEHAVIOR AND TRIBOLOGICAL BEHAVIOR IN CYLINDER-PISTON SYSTEM IN IC ENGINE
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A NUMERICAL SIMULATION OF THE COUPLING BETWEEN DYNAMIC BEHAVIOR AND TRIBOLOGICAL BEHAVIOR IN CYLINDER-PISTON SYSTEM IN IC ENGINE

机译：集成电路缸活塞系统动态行为与摩擦学行为耦合的数值模拟。

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摘要

A mathematical model for cylinder-piston system considering the coupling between dynamic behavior and tribological behavior is presented in this paper. The three-dimensional finite element method is used to compute the engine block vibrations. The lubrication of cylinder-piston pair was described by an average Reynolds equation considering the piston second-vibration and asperity contact of rough surface. The corresponding computing program developed can be used to calculate the engine block vibrations, the entire piston trajectory, the Piston slap forces, friction forces and oil film thickness etc. as functions of crank angle under engine running conditions. The numerical simulation results show that the coupling between engine block dynamical behavior and lubrication has big influence for the secondary motion of piston and the engine block vibration in cylinder-piston system. It is essential to consider the engine block vibration in the analysis of cylinder-piston tribology.
机译：提出了一种考虑动力学行为与摩擦学行为耦合的气缸－活塞系统数学模型。三维有限元方法用于计算发动机缸体振动。考虑到活塞的二次振动和粗糙表面的粗糙接触，通过平均雷诺方程描述了汽缸-活塞对的润滑。开发的相应计算程序可用于计算发动机运转条件下曲柄角的变化，以计算发动机缸体振动，整个活塞轨迹，活塞击打力，摩擦力和油膜厚度等。数值模拟结果表明，发动机缸体动力学行为与润滑之间的耦合对活塞的二次运动和气缸－活塞系统中发动机缸体的振动影响很大。在气缸活塞摩擦学分析中，必须考虑发动机缸体的振动。

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