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Concept Validation and Optimization for a Vent-Based Mine-Blast Mitigation System.
| 题名： | Concept Validation and Optimization for a Vent-Based Mine-Blast Mitigation System. |
| 作者： | Grujicic, M. |
| 关键词： | Blast waves, Buried objects, Military vehicles, Mines(ordnance), Computations, Finite element analysis, Improvised explosive devices, Interactions, Kinematics, Lagrangian functions, Optimization, Shallow depth, Shock mitigation, Soils, Survivability, Target detection, Underbottom, Validation, Blast-mitigation, Vent-based concept, Fluid-structure interactions, Light tactical military vehicles, Hmmwv(high mobility multipuprpose wheeled vehicles), Pe611102a |
| 摘要： | In this project, a new solution for improving blast-survivability of light tactical military vehicles to detonation of a shallow-buried mine underneath them has been introduced and analyzed computationally. The solution involves the use of side-vent-channels attached to the Vshaped vehicle underbody, and tries to exploit detonation-products ultrasonic-expansion and ejected-soil venting phenomena to generate a downward thrust on the targeted vehicle. In order to accurately account for the interaction of detonation products, ejected soil and blast waves with the target structure, a novel combined Eulerian/Lagrangian finite-element/discrete-particle computational method has been developed and employed. To assess the full blast-mitigation potential of the new concept, the finite-element-based analysis has been combined with an advanced multi-objective design-optimization procedure. The results obtained show that the proposed concept has a relatively limited (but respectable) ability to reduce the detonation-induced total momentum transferred to, and the acceleration acquired by, the target vehicle. |
| 总页数： | Grujicic, M. |
| 报告类型： | 科技报告 |
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