STABILITY OF GAS - LUBRICATED CIRCULAR JOURNAL BEARING SYSTEMS DURING ACCELERATION WITH ASPECT RATIO EFFECTS

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DASHTI RAHMATABADI A.; MAALEK M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MECHANICAL ENGINEERING (ENGLISH) Year:2001 | Volume:2 | Issue:1 Page(s): 23-34

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Information Journal Paper

Title

STABILITY OF GAS - LUBRICATED CIRCULAR JOURNAL BEARING SYSTEMS DURING ACCELERATION WITH ASPECT RATIO EFFECTS

Author(s)

DASHTI RAHMATABADI A. | MAALEK M. | Issue Writer Certificate

Keywords

GAS BEARINGQ3

ACCELERATIONQ3

BEARING DYNAMIC STABILITYQ3

Abstract

This paper is concerned with the stability characteristics of gas-lubricated plane journal bearings systems during ACCELERATION periods. The paper first establishes a theoretical analysis for the transient response of gas-lubricated journal bearing system. The stability margin which is expressed in terms of critical speed is obtained by the time - marching solution of the equation of motion of the journal coupled with the time-transient Reynolds equation. For this purpose, the compressible Reynolds equation is formulated as an initial value problem via Galarkin's finite element method. It is found that the effect of aspect ratio is more pronounced at low compressibility numbers and also an increase in the value of aspect ratio decreases the minimum value of stability threshold speed as well as zone of infinite stability.

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APA: Copy

DASHTI RAHMATABADI, A., & MAALEK, M.. (2001). STABILITY OF GAS - LUBRICATED CIRCULAR JOURNAL BEARING SYSTEMS DURING ACCELERATION WITH ASPECT RATIO EFFECTS. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), 2(1), 23-34. SID. https://sid.ir/paper/107776/en

Vancouver: Copy

DASHTI RAHMATABADI A., MAALEK M.. STABILITY OF GAS - LUBRICATED CIRCULAR JOURNAL BEARING SYSTEMS DURING ACCELERATION WITH ASPECT RATIO EFFECTS. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH)[Internet]. 2001;2(1):23-34. Available from: https://sid.ir/paper/107776/en

IEEE: Copy

A. DASHTI RAHMATABADI, and M. MAALEK, “STABILITY OF GAS - LUBRICATED CIRCULAR JOURNAL BEARING SYSTEMS DURING ACCELERATION WITH ASPECT RATIO EFFECTS,” JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), vol. 2, no. 1, pp. 23–34, 2001, [Online]. Available: https://sid.ir/paper/107776/en

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