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52566

ESTIMATION OF DYNAMIC COEFFICIENTS OF ELLIPTIC HEARINGS WITH VARIED ASPECT AND ELLIPTICITY RATIOS

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Last updated: 24 Dec 2024

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Abstract

Computer solution of Reynold's equation applied to an elliptic bearing using numerical methods is employed to obtain the load carrying capacity of an elliptic bearing with horizontal and vertical axes. Numerical integration of pressure results in evaluating fluid-film forces. Numerical differentiation of fluid-film force components determine radial and tangential film stiffness. If the journal runs in equilibrium under some external load, and is displaced incrementally in direction of radial vector of the journal center; numerical solution of Reynold's equation,for each bearing arc, will result in dynamic pressure distribution. Numerical integration of dynamic pressure results in dynamic fluid-film forces. Numerical differentiation of dynamic forces results in tangential and radial damping coefficients. Equations of motion of a journal due to small oscillation of the journal center areused to determine the onset of instability in an elliptic bearing.

DOI

10.21608/amme.1986.52566

Authors

First Name

A.

Last Name

MOUSTAFA

MiddleName

A-F.

Affiliation

Assoc. Prof. in the dept. of Mechanical Design and Production Faculty of Engineering, Cairo University.

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Volume

1

Article Issue

2nd Conference on Applied Mechanical Engineering.

Related Issue

7959

Issue Date

1986-05-01

Receive Date

2019-10-08

Publish Date

1986-05-01

Page Start

45

Page End

54

Print ISSN

2636-4352

Online ISSN

2636-4360

Link

https://amme.journals.ekb.eg/article_52566.html

Detail API

https://amme.journals.ekb.eg/service?article_code=52566

Order

57

Type

Original Article

Type Code

831

Publication Type

Journal

Publication Title

The International Conference on Applied Mechanics and Mechanical Engineering

Publication Link

https://amme.journals.ekb.eg/

MainTitle

ESTIMATION OF DYNAMIC COEFFICIENTS OF ELLIPTIC HEARINGS WITH VARIED ASPECT AND ELLIPTICITY RATIOS

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Article

Created At

22 Jan 2023