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A Critical Analysis on the Lubrication Circuit of a Non-road Diesel Engine by Adopting a 3D and 1D Approaches

机译：采用三维和一维方法对非道路柴油机润滑回路的临界分析

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The aim if this paper is the analysis of a lubrication circuit adopting two simulation models to study the influence of three different lubrication oils. First, the oils pump performance were analyzed with a tri-dimensional simulation model, realized with the commercial code PumpLinx®, which allowed to obtain the performance curves of the oil pump, varying the oils. Then the lubrication circuit was studied with a 1D model, realized with the commercial code LMS AMESim®, and the behaviour of the lubrication circuit was analyzed in terms of pressure drops and components oil consumption. The adopted oils were: 0W30; 5W40 and10W60. In previous activities, both models showed good correlation with experimental data. Analyzing the models results, it was noted that the pressure behavior in the lubrication circuit is highly influenced by the oil, especially for low engine speed and high temperatures. The adopted methodology, that couples mono-dimensional and tri-dimensional models, allowed to analyze the oil influence in a lubrication circuit, avoiding excessive computational cost, but with an acceptable accuracy
机译：本文的目的是采用两种仿真模型对润滑回路进行分析，以研究三种不同润滑油的影响。首先，使用三维仿真模型分析油泵的性能，该模型通过商业代码PumpLinx®实现，该模型可以获取油泵改变油品的性能曲线。然后用一维模型研究润滑回路，并用商业代码LMSAMESim®实现，并根据压降和零件油耗分析润滑回路的性能。采用的油为：0W30； 5W40和10W60。在先前的活动中，两个模型都显示出与实验数据的良好相关性。分析模型结果后，发现润滑回路中的压力行为受机油的影响很大，特别是对于低发动机转速和高温。所采用的方法结合了一维和三维模型，可以分析润滑回路中的机油影响，避免了过多的计算成本，但精度可以接受

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