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首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference 2004(IJTC 2004) vol.1 pt.A; 20041024-27; Long Beach,CA(US) >Theoretical Modeling and Simulation of Piston Ring Assembly of an IC Engine
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Theoretical Modeling and Simulation of Piston Ring Assembly of an IC Engine

机译：内燃机活塞环总成的理论建模与仿真

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摘要

Frictional losses in an IC engine are observed between 17-19% of total induced horsepower. 35-45% frictional losses observed due to piston ring assembly only from the above-referred total frictional loss. Lubrication system is for reducing the frictional losses and under the total hydrodynamic lubrication system, if made it feasible, above referred losses can be reduced considerably. Wear normally observed at TDC and BDC during the power stroke. Experimental set-up is prepared by using used piston-cylinder assembly of an engine. Experiment methodology is adopted based on certain assumption and simulated the entire system with an extra drive system by an electric motor with a provision of various speed availability. Various pockets on cylinder liner of 2mm diameter are located on the periphery of cylinder liner to offer lubrication to the system. Care was taken to control the rate of lubrication flow with the help of control knob. Seven different profiles on piston ring were generated and measured. Friction force is calculated by power consumption measurement under different dynamic condition with a variation of 5-speed, 3- lubricants and different 8-types of piston ring geometry are experimented under different combination and results are tabulated. Graphs are plotted for friction force v/s speed for different lubricants and piston ring profiles. Effect of lubricants (SAE30, 15W40& 2T) and ring geometry are compared.
机译：观察到内燃机的摩擦损失占总感应马力的17-19％。仅由于上述总摩擦损失，才发现由于活塞环组件而产生的35-45％的摩擦损失。润滑系统用于减少摩擦损失，在整个流体动力润滑系统下，如果可行的话，可以大大减少上述损失。动力冲程期间通常在TDC和BDC处观察到磨损。通过使用发动机的二手活塞-气缸组件来准备实验装置。基于一定的假设采用了实验方法，并通过电动机以额外的驱动系统对整个系统进行了仿真，并提供了各种速度可用性。直径为2mm的缸套上的多个凹穴位于缸套的外围，为系统提供润滑。小心通过控制旋钮来控制润滑流量。生成并测量了活塞环上的七个不同轮廓。通过在不同动态条件下以5速变化的动力消耗测量来计算摩擦力，以3种润滑剂和3种不同类型的活塞环几何形状在不同的组合下进行试验，并将结果列表化。绘制了不同润滑剂和活塞环轮廓的摩擦力与速度的关系图。比较了润滑剂（SAE30、15W40＆2T）和环几何形状的影响。

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