不同磨损状态的磨粒特征研究

【作者】 陈娟；

【导师】 樊瑜瑾；

【作者基本信息】 昆明理工大学 ， 机械电子工程， 2007， 硕士

【摘要】 本论文主要是利用铁谱技术对机械因不同磨损而产生的磨粒进行特征分析与研究，具体依据铁谱图片分析所得的磨粒特征来判断机器的实际磨损状态。铁谱分析技术是一种用于研究磨粒磨损机理、分析磨损状态的有效方法，利用铁谱分析技术可以对机器进行磨损状态监测和故障诊断。从而达到对机器的运转状况提出预报的目的。论文研究了大型机械主要摩擦副摩擦磨损的危害、铁谱技术的有关理论及实际运用方法，并结合机械主要摩擦副的磨损特点，监测实验中，以内燃机为实际研究对象，采集内燃机实际工况下的油样，利用铁谱技术对其进行油样分析，通过实验，对所得到的数据进行分类研究。分析不同磨损状态下的磨损磨粒，确定其磨粒的特征和形成机理。如对磨合期(跑合期)、正常稳定磨损期、磨损失效期三个磨损过程中取得的油样进行分析。并将磨粒形态与磨损机理相结合。在此基础上，利用实验分析所得的结论，分析判断机器的实际磨损状态，最终达到利用铁谱技术对机械进行工况监测和故障诊断的目的。为机器的正常工作提供及时准确的依据。更多还原

【Abstract】 This article is mainly focused on the study and analysis of wear particles formed in the principle components of the engine through the technology of ferrograhy. according to the data of the characteristics of wear picture to estimate the working of an engine. Not only effective in studying and analyzing the mechanism of wear particles, ferrography can also be used to evaluate the overall performance of the engine through monitoring its working process and detecting mechanic failures. Based on the internal combustion engine.we have studied and analyzed the damages caused by engine friction as well as related theories of cerography and its aplications. we have also classified and studied the data based on the characteristics of the engine through collecting ,analyzing and testing the sample engine oils .we have managed to find out the nature and the formation of wear particles in different states(in trial period, stable period, declining period) These findings allow us to monitor the performance of an engine and to detect its failures effectively as well as provide both timely and accurate information to ensure the normal working of an engine.更多还原