微米表面图形的摩擦学特性研究

发布时间：2018-06-30 11:03

本文选题：摩擦损失 + 表面图形制作　；参考：《延边大学》2012年硕士论文

【摘要】：随着科技的迅速发展,很多产业对机械零件、装备的耐久性和使用寿命等有了越来越高的要求。据有关部门统计汽车引擎由于摩擦而造成的能量损失约占整个损失的40～50%。因此,为了降低能量损失各行各业都广泛地进行新技术以及新方法的开发研究工作。通常降低动力机械零部件的摩擦损失主要通过润滑油的开发、接触表面的研磨以及表面镀涂等方法进行研究。最近,许多发达国家为了降低能源损失、改善摩擦性能以及减少摩擦损失等,广泛研究和应用微米表面图形的摩擦学应用等表面织构化新技术。世界上使用的能源大约有1/3～1/2消耗于摩擦,为了降低能源消耗人们广泛研究新技术和新方法。本论文是研究通过微米表面纹理优化来控制摩擦,提高机件机械性能、延长使用寿命以及减少能源消耗的新型研究方法,是通过摩擦试验研究不同表面织构的几何参数与其摩擦学响应之间的关系,以达到优化纹理控制摩擦的目的。本研究通过照相平版印刷术和电化蚀刻方法确立微米表面图案的加工原理及方法,并通过摩擦试验推导出微米表面图案的形状、大小、深度以及密度等几何参数在不同压力、速度及润滑油等实际工况条件下摩擦特性的变化规律。通过各种先进的测试及分析方法解析出不同微米表面图案的摩擦行为。本论文研究成果将为表面织构化技术的发展及其在摩擦学领域中的应用提供理论及实验依据。本文对不同夹角的微米表面图形进行设计制作最后进行实验结果数据分析,在石蜡油润滑条件下,采用销-盘摩擦副接触方式,在不同试验条件下,利用Stribeck曲线分析不同夹角的微米表面图形的摩擦特性,最后使用摩擦系数地图曲线分析在不同载荷和滑动速度下,不同夹角的微米表面图形的摩擦系数变化情况.实验结果分析显示,当微米交叉凹槽表面图形夹角在135°时获得了最佳的摩擦性能。
[Abstract]:With the rapid development of science and technology, many industries have higher and higher requirements for the durability and service life of mechanical parts and equipment. According to the statistics, the energy loss caused by friction accounts for 4050% of the total loss. Therefore, in order to reduce energy loss, new technologies and new methods are widely studied in various industries. In general, the reduction of friction loss of power mechanical parts is mainly studied by the development of lubricating oil, grinding of contact surface and surface plating. Recently, in order to reduce energy loss, improve friction performance and reduce friction loss, many developed countries have extensively studied and applied new surface texturing techniques such as tribology and tribology of micron surface graphics. About a third of the energy used in the world is consumed by friction, and new technologies and methods are widely studied to reduce energy consumption. This paper is a new research method to control friction, improve mechanical properties, prolong service life and reduce energy consumption by optimizing micrometer surface texture. The relationship between the geometric parameters of different surface texture and its tribological response is studied by friction test in order to optimize the friction control of texture. In this study, the processing principle and method of micron surface pattern were established by means of photolithography and electrochemical etching, and the geometric parameters such as shape, size, depth and density of micron surface pattern were deduced by friction test at different pressures. The variation law of friction characteristics under actual working conditions such as speed and lubricating oil. The friction behavior of different micron surface patterns was analyzed by various advanced testing and analysis methods. The results of this paper will provide theoretical and experimental basis for the development of surface texture technology and its application in tribology. In this paper, the micrometer surface figure with different angles is designed and fabricated. Finally, the experimental data are analyzed. Under the condition of paraffin oil lubrication, the contact mode of pin-disk friction pair is adopted under different test conditions. The friction characteristics of micrometer surface figure with different angles are analyzed by using Stribeck curve. Finally, the friction coefficient of micron surface figure with different angles is analyzed by using the friction coefficient map curve under different loads and sliding speeds. The experimental results show that the optimum friction performance is obtained when the angle of the surface figure of the micrometer cross groove is 135 掳.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH117

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