粗糙圆形阶梯轴承上磁挤压膜的性能:不同多孔结构的比较

IF 0.5 Q3 ENGINEERING, MULTIDISCIPLINARY

Acta Polytechnica Pub Date : 2022-08-31 DOI:10.14311/ap.2022.62.0409

J. V. Adeshara, H. Patel, G. Deheri, R. Patel

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引用次数: 0

摘要

基于Kozeny-Carman和Irmay模型，对比分析了海绵状结构对粗圆阶梯轴承内磁挤压膜的影响。Christensen和Tonder的随机平均过程已被用于确定任意横向表面不规则性的作用。通过求解具有适当边界条件的广义随机平均雷诺方程，得到了轴承内压力的分布。结果表明，增大磁化强度会导致负载增大。表面不规则(横向)的影响已被发现是不利的。此外，至少在Kozeny-Carman的球状模型中，磁化的积极影响可以最小化表面不规则性和孔隙率的负面影响。此外，较低的磁场强度导致这两种模型的性能近似相似。本研究提供了将Kozeny-Carman模型与Irmay模型进行比较的可能性。

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Performance of a hydromagnetic squeeze film on a rough circular step bearing: a comparision of different porous structures

This investigation deals with a comparative analysis of the impact of spongy structure based on the model of Kozeny-Carman and Irmay on a hydromagnetic squeeze film in a rough circular step bearing. Christensen and Tonder’s stochastic averaging process has been utilized to determine the role of an arbitrary transverse surface irregularity. The distribution of the pressure in the bearing is obtained by solving the concerned generalised stochastically averaged equation of Reynolds’ with appropriate boundary conditions. The outcomes show that increasing values of magnetization results in an augmented load. The impact of the surface irregularity (transverse) has been found to be adverse. In addition, the negative effect of the surface irregularity and porosity can be minimised by the positive impact of magnetization, at least in the case of the globular sphere model of Kozeny-Carman. Furthermore, the lower strength of the magnetic field results in an approximately similar performance for both these models. This study offers the possibility that the Kozeny-Carman model could be deployed in comparison with Irmay’s model.

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来源期刊

Acta Polytechnica ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

12.50%

发文量

审稿时长

24 weeks

期刊介绍： Acta Polytechnica is a scientific journal published by CTU in Prague. The main title, Acta Polytechnica, is accompanied by the subtitle Journal of Advanced Engineering, which defines the scope of the journal more precisely - Acta Polytechnica covers a wide spectrum of engineering topics, physics and mathematics. Our aim is to be a high-quality multi-disciplinary journal publishing the results of basic research and also applied research. We place emphasis on the quality of all published papers. The journal should also serve as a bridge between basic research in natural sciences and applied research in all technical disciplines. The innovative research results published by young researchers or by postdoctoral fellows, and also the high-quality papers by researchers from the international scientific community, reflect the good position of CTU in the World University Rankings. We hope that you will ﬁnd our journal interesting, and that it will serve as a valuable source of scientiﬁc information.