Effect of Structural Parameters on Dynamic Characteristic of Fluid Pivot Journal Bearing

The stiffness and damping of the fluid pivot journal bearing (FPJB) which has been selected as the subject of study in this paper are systematically investigated. Based on the FPJB structure and principle of operation, geometrical models have been established and numerical methods (FDM) are used to...

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Published inJournal of the Institution of Engineers (India) Series C Vol. 103; no. 4; pp. 751 - 761
Main Authors Nguyen, Tuyen Vu, Li, Weiguang, Tuan Phan, Van
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.08.2022
Springer Nature B.V
Subjects
Aerospace Technology and Astronautics
Damping
Dynamic characteristics
Engineering
Industrial and Production Engineering
Journal bearings
Mechanical Engineering
Numerical methods
Original Contribution
Parameters
Stiffness
Stiffness and damping coefficients
Fluid pivot journal bearing
Recess area
Gap size
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ISSN2250-0545
2250-0553
DOI10.1007/s40032-022-00842-8

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Summary:The stiffness and damping of the fluid pivot journal bearing (FPJB) which has been selected as the subject of study in this paper are systematically investigated. Based on the FPJB structure and principle of operation, geometrical models have been established and numerical methods (FDM) are used to determine the floating conditions of the pads and the dynamic coefficients of the bearings. Initially, the floating conditions of the pads according to the preload factor are indicated. On this basis, the equilibrium position of the shaft and bearing system is determined according to the bearing parameters: preload, gap size, recess area. Finally, the effects of these parameters on the stiffness and damping coefficients are shown.
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ISSN:2250-0545
2250-0553
DOI:10.1007/s40032-022-00842-8