具有滑动运动的摩擦副在不同润滑条件下摩擦系数演化的理论与实验研究

I. Petre, E. Stoian, M. Enescu
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引用次数: 0

摘要

近几十年来,研究人员和工程师对获得具有竞争力的材料越来越感兴趣。摩擦对材料的影响很难解释,因为摩擦偶表面的微观和宏观相互作用,它们相互滑动。滑动表面的摩擦和磨损行为可以被认为是重要的设计准则。事实上,对于具有滑动运动的运动学耦合,在大多数情况下,硬度较高的材料与硬度较低的材料结合使用,存在磨损和局部塑性变形的可能性。本文提出了计算刚性锥形穿甲弹通过低硬度平面时的摩擦系数的解析模型,并建立了该平面材料的响应模式。贯入法与实践中由凸起产生的变形相对应。提出的理论模型将在这个意义上的摩擦学支架上进行实验验证。将实验结果与理论结果进行比较,证实了模型的准确性,也与许多专业著作中的实验结果相吻合。
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Theoretical and Experimental Research on the Evolution of the Friction Coefficient in Different Lubrication Conditions in the Case of Friction Couples with Sliding Motion
Abstract In recent decades, the interest of researchers and engineers in obtaining competitive materials is increasing. The effects of friction on materials are quite difficult to explain due to the micro and macroscopic interactions of the surfaces of the friction couple, which slide over each other. The friction and wear behavior of sliding surfaces can be considered important design criteria. The fact that for a kinematic coupling with sliding motion, a material with a higher hardness is used in most cases in combination with a material with a lower hardness, there is the possibility of abrasion wear and local plastic deformations. The paper proposes in analytical model for calculating the coefficient of friction when a rigid conical penetrator passes over a flat surface with a lower hardness and establishing the response mode of the material of the flat surface. The penetration method corresponds to the deformation produced by asperities in practice. The proposed theoretical model will be experimentally validated on a tribological stand made in this sense. Comparing the experimental results with the theoretical ones confirms the veracity of the model and also corresponds to many of the experimental results obtained in specialized works.
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来源期刊
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发文量
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审稿时长
4 weeks
期刊最新文献
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