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38981

DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS

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Last updated: 04 Jan 2025

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Abstract

ABSTRACT
In this study, the stability of a Timoshenko beam under the effect of a moving projectile
will be reintroduced using simple eigenvalue analysis of a finite element model. The
eigenvalues of the beam change with the mass, speed, and position of the projectile,
thus, the eigenvalues are evaluated for the system with different speeds and masses at
different position until the lowest eigenvalue reaches zero indicating the instability
occurrence. Then the dynamics of the beam will be investigated using the Newmark
algorithm at different values of speed and mass ratios. It is concluded that the
technique used to predict the stability boundaries is simple, accurate, and reliable.

DOI

10.21608/amme.2008.38981

Keywords

Timoshenko beams, beam dynamics, beam stability, time response, cantilever beam and moving bullet

Authors

First Name

WAGIH

Last Name

A.

MiddleName

-

Affiliation

Egyptian Air-force, Cairo, Egypt.

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First Name

ALADIN

Last Name

M.

MiddleName

-

Affiliation

Modeling and Simulation in Mechanics, German University in Cairo.

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First Name

TAWFIK

Last Name

M.

MiddleName

-

Affiliation

Mechanical Engineering Department, British University in Egypt, Cairo, Egypt.

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First Name

NEGM

Last Name

M.

MiddleName

H.

Affiliation

Aerospace Engineering Department, Cairo University, Cairo, Egypt.

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Volume

13

Article Issue

13th International Conference on Applied Mechanics and Mechanical Engineering.

Related Issue

6264

Issue Date

2008-05-01

Receive Date

2019-07-04

Publish Date

2008-05-01

Page Start

33

Page End

46

Print ISSN

2636-4352

Online ISSN

2636-4360

Article File

AMME_Volume 13_Issue 13th International Conference on Applied Mechanics and Mech….pdf

PDF . 565.3kB

Link

https://amme.journals.ekb.eg/article_38981.html

Detail API

https://amme.journals.ekb.eg/service?article_code=38981

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13

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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

DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS

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Article

Created At

22 Jan 2023