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首页> 外文期刊>Mechanics & Industry >Performance evaluation of rough thrust pad bearing under thermo-elastohydrodynamic lubrication using an improved iterative method
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Performance evaluation of rough thrust pad bearing under thermo-elastohydrodynamic lubrication using an improved iterative method

机译：采用改进的迭代法，粗弹力润滑下粗推力垫轴承的性能评价

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摘要

The asperities present on interacting surfaces of a bearing influence the film formation when the oil film becomes thinner and thinner. The aim of this article is to study the effect of stochastic roughness on bearing performance under thermo-piezoviscous and elastic condition using an average flow model. To investigate the present operating conditions, progressive mesh densification method as a fast and simple algorithm has been applied. The results obtained indicate that transverse roughness generates higher pressure compared to other orientational roughness at various film thicknesses. Maximum pressure, mass flow rate and load capacity are larger in transverse roughness compared to other orientational roughness for all values of hydrodynamic roughness parameters. A large sensitivity in load capacity for transverse orientation compared to longitudinal at higher film thickness and small film thickness ratios are witnessed. The frictional coefficient in longitudinal orientation is large compared to transverse orientation at all values of film thickness ratio and step ratios. Materials with low elastic modulus undergo large deformation, resulting in generation of two sharp pressure peaks. These results may possess good acceptability to practical applications for studying the effect of surface roughness under thermo-elastohydrodynamic lubrication condition.
机译：当油膜变薄和薄荷时，轴承的相互作用的抑制件存在于轴承的相互作用。本文的目的是使用平均流量模型研究随机粗糙度对热压电和弹性条件下的轴承性能的影响。为了研究目前的操作条件，应用了作为快速和简单算法的逐步网格致密化方法。得到的结果表明，与各种膜厚度的其他定向粗糙度相比，横向粗糙度产生较高的压力。与其他型流体动力粗糙度参数的所有值相比，横向粗糙度的最大压力，质量流量和负载容量较大。目睹了与横向取向相比较高膜厚度和小膜厚度比相比的负载能力的大灵敏度。与膜厚度比和步长比的所有值下的横向相比，纵向取向的摩擦系数大。具有低弹性模量的材料经历大变形，导致产生两个锋利的压力峰。这些结果对实际应用具有良好的可接受性，用于研究热弹性流动性润滑条件下表面粗糙度的影响。

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