对地攻击型无人机作战机群协同作战研究

近年来,无人机对地攻击的战术研究逐步由单机作战向集群协同转变。将对地攻击无人机按照不同的类型进行合理配置,可以提升集群整体作战效果。已有的研究成果主要采取概率论、指数法等方式,主要侧重于集群在主流战术理念下的规划等问题。当对地攻击型无人机组成机群后,各机之间的相互影响对机群协同作战整体效果有显著影响。本研究基于常见的评估指标体系,分析对地攻击无人机的效能影响因子,介绍了对地攻击型无人机作战效果评估计算方式。结合示例分析不同规模下机群各机种或载荷的最佳配比方式。

对地攻击型无人机群协同作战效能分析

针对对地攻击型无人机群协同作战问题,通过建立无人机作战效能评估指标体系,结合效能影响因子模型,得出了携带不同任务载荷无人机群的协同作战效能计算模型,并给出了基于启发式整数规划的模型求解方法。最后通过具体算例,讨论发现无人机群中任务载荷编配种类和数量不同,其协同作战效能将有明显变化,并分析了任务载荷编成配置随无人机群规模的变化关系,以及任务载荷类型、作战任务对无人机群编成配置的影响关系。

Behavior of Cantilever Slabs in a Blast Environment

Behavior of structural elements under blast loading is different from that under usual loading conditions that are considered in conventional structural deigns. Cantilever slabs are more vulnerable than most other elements under blast loads because of their shape. Understanding the blast behavior of cantilever slabs is useful in strengthening them against blast loads. In this paper, blast loading design envelopes for cantilever slabs are proposed using which, the blast behavior of conventional cantilever slabs can be identified. The paper describes the theories behind these envelopes and the way they can be applied to improve conventional designs. These envelopes have been prepared using numerical techniques. The theories used are accepted, verified and validated theories. The paper shows the possibility of converting a conventional cantilever slab design into impulsive regime design with minor adjustments to the structural design. It points out the importance of increasing slab thickness and controlling steel/concrete ratio for strengthening conventional cantilever slab designs and the requirement of reinforcement at top and bottom fibers.