Volume 22, Issue 9 (September 2022)
Modares Mechanical Engineering 2022, 22(9): 579-590 |
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jafari S, Alavi Nia َ. Experimental Study of the Effect of Different Factors on the Performance of the Gas Gun Device and Numerical Study of the Rupture Pressure Estimate in the Rupture Disk. Modares Mechanical Engineering 2022; 22 (9) :579-590
URL: http://mme.modares.ac.ir/article-15-60348-en.html
URL: http://mme.modares.ac.ir/article-15-60348-en.html
1- PhD student, Faculty of Engineering, Bu Ali Sina University, Hamadan
2- Professor, Department of Mechanics, Bu Ali Sina University, Hamadan ,alavi495@basu.ac.ir
2- Professor, Department of Mechanics, Bu Ali Sina University, Hamadan ,
Abstract: (1543 Views)
In this study, the purpose is to evaluate the effective factors in the increase of projectile velocity in the gas-gun device. At first, the effect of various factors such as the shape and dimensions of the sabot, groove depth and the shape of the Rupture Disk holder, the path of the projectile from the moment of movement to the exit from the tube, and the type of gas used for launching are investigated. In each step of the experiments, a factor is evaluated and its effect on improving the performance of the gas-gun device is investigated. Based on the results of the study of effective factors the velocity of the projectile the shape of the sabot, and the projectile movement path with a 24.12 and 20.81% increase in projectile velocity respectively, the maximum and the type of gas used with 2.99% increase in projectile velocity had the minimum effect on the performance of the gas-gun device. In the second part of the present study, using the finite element method by LS-Dyna, the required pressure and rupture shape of the Rupture Disk in different grooves were investigated and compared with the experimental results. The shape of the rupture and the pressure required to rupture the Rupture Disk from the numerical method are in good agreement with the experimental results.
Article Type: Original Research |
Subject:
Impact Mechanics
Received: 2022/03/19 | Accepted: 2022/05/14 | Published: 2022/09/1
Received: 2022/03/19 | Accepted: 2022/05/14 | Published: 2022/09/1
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