ANALYTICAL STUDY OF GAS UNIT GEOMETRICAL CHARACTERISTICS AND THEIR IMPACT ON THE MOMENTUM OF RECOLILING PARTS | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 13, Volume 15, 15th International Conference on Applied Mechanics and Mechanical Engineering., May 2012, Page 1-16 PDF (936.94 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2012.36908 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. S. Abo-Elkhair | ||||
| Egyptian armed forces. | ||||
| Abstract | ||||
| ABSTRACT On handling the problem of automation in automatic weapons (AW), it is important to analyze the motion of these weapon mechanisms during their function cycle [1, 2]. Many activities are performed during the backward motion of weapon mechanisms using the power of branching gases from what known as Gas Unit (GU). These activities starts with under-slide motion, unlocking, extraction of empty Cartridge Case (c.c.), backward motion against springs, ejection of empty c.c., and ending by loading of trigger at the extreme rear position. All these activities are performed in a reversed manner during the counter recoil track. In this paper; the parameters affecting the momentum of branching gases have been extensively studied, the performance of the gas unit is converted to touchable figures in order to facilitate the evaluation. These evaluations are presented in forms of change in pressure of gases inside the GU, maximum velocity of recoil, and the displacement of recoiling parts until the pressure inside the gas unit reaches the atmospheric value [7,8]. The predicted results determine the weight of each parameter that affects the momentum of gases. Moreover, the affecting parameters of GU on the weapon performance during the function cycle may be considered on modifying the power of in-service weapons, or the newly designed generations | ||||
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