|
| Damage Effect of Aircraft Fuel Tank Structure under Spherical Projectile Impact at High Speed |
| Received:June 25, 2018 Revised:September 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.09.001 |
| KeyWord:liquid-filled tank high-speed impact damage effect digital simulation |
| Author | Institution |
| ZHANG Yu |
Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an , China |
| WANG Bin-wen |
Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an , China |
| LIU Xiao-chuan |
Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an , China |
| HUI Xu-long |
Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an , China |
| SHU Wan |
Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Aircraft Strength Research Institute of China, Xi'an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To study damage effect of high speed projectile on the structure of aircraft fuel tank. Methods A dynamic analysis model for high-speed projectile impact on water-filled fuel tank was established based on LS-DYNA finite element analysis software and the theory of smooth particle hydrodynamics. The dynamic impact response and damage effect of the fuel tank structure under different projectile impact velocity and different liquid filling ratio were analyzed. Results The liquid filling ratio had little effect on the velocity attenuation of the projectile. The projectile speed and the liquid filling ratio had significant effects on dynamic impulse response of the fuel tank structure. With the increase of the projectile velocity, the deformation of the front and back plates increased gradually. With the increase of the proportion of filling, the deformation of the structure also increased gradually and the damage was more serious. In addition, the deformation of partially filled aircraft fuel tanks was significantly less than that of the fully filled fuel tank. Conclusion Damage of the aircraft fuel tank increased with the increase of liquid filling proportion and projectile velocity. |
| Close |
|
|
|