ヘリングボーン溝付動圧気体軸受の研究 : 溝数の影響に関する理論解析

概要

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This paper describes the theoretical performances of the Herringbone-grooved gas journal bearings with a finite number of grooves and the practicality of the results for the conventional and facile analysis using the assumption of an infinite number of grooves is verified. The analysis using the finite element method is carried out, and it is shown that the influence of a finite number of grooves depends on the groove-ridge pair has a continual step-bearing function in addition to the effect of the compressibility of the fluid. Comparing the results of a finite number of grooves with those of an infinite number of grooves, the bearing stiffness is smaller in a wide range of bearing numbers and the difference is large, especially in the large bearing number region. However, in the small bearing number region where the bearings are usually applied, the difference is so small that the analyses in which an infinite number of grooves are used are available for implementation in the bearing design.
一般社団法人日本機械学会の論文
1989-06-25