Analysis of static and dynamic characteristics of spiral-grooved gas journal bearings in high speed

被引：12
|
作者：
Song, Laiyun [1 ]
Cheng, Kai [1 ,2 ]
Ding, Hui [1 ,3 ]
Chen, Shijin [1 ]
Gao, Qiang [1 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin, Heilongjiang, Peoples R China
[2] Brunel Univ London, Coll Engn Design & Phys Sci, Uxbridge, Middx, England
[3] Harbin Inst Technol, Key Lab Microsyst & Microstruct Mfg, Minist Educ, Harbin, Heilongjiang, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2019年 / 233卷 / 19-20期
基金：
中国国家自然科学基金;
关键词：
Spiral-grooved gas journal bearings; static and dynamic performance; modeling and simulation; design for gas bearings with spiral grooves; high-speed condition; STABILITY; BEHAVIOR;
D O I：
10.1177/0954406219869751
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The spiral grooves structures could promote load capacity and improve stability of the gas journal bearings working in high-speed condition. In this study, the unsteady Reynolds equation is solved by linear perturbation method and finite difference method in which the mesh of the groove region is specially treated. The static and dynamic characteristics of spiral grooves journal gas bearings are investigated in different working conditions and the pumping effect caused by spiral-groove structure is revealed and analyzed. Further, the influences of groove structural parameters on the dynamic stiffness and damping coefficients are studied and discussed, which provides guidelines for the design of the journal gas bearings with spiral grooves.
引用
收藏
页码：6774 / 6792
页数：19
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