DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS
A., W., M., A., M., T., M., N. (2008). DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS. EKB Journal Management System, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), 33-46. doi: 10.21608/amme.2008.38981
WAGIH A.; ALADIN M.; TAWFIK M.; NEGM H. M.. "DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS". EKB Journal Management System, 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., 2008, 33-46. doi: 10.21608/amme.2008.38981
A., W., M., A., M., T., M., N. (2008). 'DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS', EKB Journal Management System, 13(13th International Conference on Applied Mechanics and Mechanical Engineering.), pp. 33-46. doi: 10.21608/amme.2008.38981
A., W., M., A., M., T., M., N. DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS. EKB Journal Management System, 2008; 13(13th International Conference on Applied Mechanics and Mechanical Engineering.): 33-46. doi: 10.21608/amme.2008.38981

DYNAMICS AND STABILITY OF GUN-BARRELS WITH MOVING BULLETS

The International Conference on Applied Mechanics and Mechanical Engineering
Article 13, Volume 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., May 2008, Page 33-46  XML PDF (552.08 K)
Document Type: Original Article
DOI: 10.21608/amme.2008.38981
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Authors
WAGIH A.1; ALADIN M.2; TAWFIK M.3; NEGM H. M.4
1Egyptian Air-force, Cairo, Egypt.
2Modeling and Simulation in Mechanics, German University in Cairo.
3Mechanical Engineering Department, British University in Egypt, Cairo, Egypt.
4Aerospace Engineering Department, Cairo University, Cairo, Egypt.
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.
Keywords
Timoshenko beams; beam dynamics; beam stability; time response; cantilever beam and moving bullet
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