Experimental study of three—titling—pad self—acting journal gas bearing expansion turbine

Chen, Chunzheng; Dong, Zhihai; Cui, Guining; Wu, Yadong; Tang, Runquan; Liu, Guojun

doi:10.1016/0011-2275(92)90113-o

Cited by 4 publications

(3 citation statements)

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“…Compared with fixed structure bearings, the pad rotation and translation together with preload are incorporated in the TPJB. Tilting pad journal bearings are often used in high speed and cryogenic machineries due to the inherent stability (Chen, et al, 1992;Gosh, et al, 2010;Gosh, et al, 2012;Kummer, et al, 2009). However, accidental uncertainties like pad fluttering and spragging (rotor and pad crashing) may occur in such complex structures (Pennacchi, et al, 2010;Yang, et al, 2009;Hargreaves and Fillon, 2007).…”

Section: Introductionmentioning

confidence: 99%

Numerical study on the load direction effect on the performance of tilting pad-journal gas bearing

Lai

Hou

Niu

et al. 2014

JAMDSM

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This paper quantitatively presents the effect of load directions on the static performance of gas titling pad-journal bearing (TPJB). The gas film thickness is determined in a subsystem composed of the rotor and one pad. Based on pressure distributions obtained from Reynolds equations, integration method is used to predict the bearing static performance. Pad forces and moment balances are considered in calculating the swing angles. Local and global parameters with different load directions are discussed analytically. With the variation of load direction, the global parameters of the bearing keep relatively stable, while the local parameters can make active changes.

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Section: Introductionmentioning

confidence: 99%

Numerical study on the load direction effect on the performance of tilting pad-journal gas bearing

Lai

Hou

Niu

et al. 2014

JAMDSM

View full text Add to dashboard Cite

show abstract

“…Gas bearing, due to its lubricant properties, can be used in different temperature ranges [1,2]. Tilting pad journal bearing (TPJB) is composed of several swinging pads (Generally [3][4][5] which can adapt to changing load.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with plain cylindrical bearing, TPJB possesses more degrees of freedom, such as pad swing angle and pad translation displacements. Thus, tilting pad journal bearings are often used in high speed application due to their inherent stability and reliability [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Numerical study on tilting pad journal gas bearing with variable stiffness springs

et al. 2015

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Tilting pad journal gas bearing (TPJGB) with variable stiffness springs has been studied numerically. Elastic shims and displacement restriction component are introduced to realize the function of the variable stiffness springs. With different loads, the compliant component can be modeled as a cantilever beam or a combination of simply supported beam with moment at fixed end. This numerical solution couples the hydrodynamic fluid lubrication Reynolds equation with the deflections of the shims iteratively. The bearing performance with variable stiffness compliant shims has been studied with different bearing numbers. With variable stiffness compliant components, the bearing can provide mild stiffness under light load and higher stiffness under heavier load; the rotor and pad can move coherently. Therefore, the new structure possesses a wider operation range, namely high adaptability.

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Numerical analysis on the static performance of tilting pad–journal gas bearing in subsystems

Hou

Lai

Chen

et al. 2013

Tribology International

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Experimental study of three—titling—pad self—acting journal gas bearing expansion turbine

Cited by 4 publications

References 0 publications

Numerical study on the load direction effect on the performance of tilting pad-journal gas bearing

Numerical study on the load direction effect on the performance of tilting pad-journal gas bearing

Numerical study on tilting pad journal gas bearing with variable stiffness springs

Numerical analysis on the static performance of tilting pad–journal gas bearing in subsystems

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