适应性兵力组织设计方法与应用研究

在建立兵力组织分层定量描述的基础上,研究了设计适应性兵力组织的关键技术,提出了一种适应性兵力组织设计建模框架.建立定量模型和优化算法,可以辅助不同层次的指挥员快速完成使命计划生成、兵力裁剪和组织结构的设计与适应环境变化,设计高效的兵力组织完成使命.最后,讨论了适应性兵力组织设计工具AAOD-Tools的设计与开发.     

近期美国海军南海地区活动态势分析

随着南海地区力量结构和美对华战略的转变,南海地区成为中美战略博弈的焦点。为围堵遏制中国的崛起,美国针对中国在南海实施了一系列海上挑衅行为。美国海军作为美国军事干预的主要力量,从兵力部署、演习演训、“航行自由”行动等着手,积极拉拢域内外盟友,展开并强化了在南海地区的军事活动。这些军事活动表现出极强的针对性和实战性,致使中美海上摩擦和竞争加剧。未来,美国为维护主导的全球秩序,将进一步提升美国海军在南海地区的威慑力。美国海军会借助并增加域内盟友的军事力量,继续维持高强度的装备平台活动及“航行自由”行动,推动海上力量合作。     

Optimizing the US Navy's combat logistics force

We study how changes to the composition and employment of the US Navy combat logistic force (CLF) influence our ability to supply our navy worldwide. The CLF consists of about 30 special transport ships that carry ship and aircraft fuel, ordnance, dry stores, and food, and deliver these to client combatant ships underway, making it possible for our naval forces to operate at sea for extended periods. We have modeled CLF operations to evaluate a number of transforming initiatives that simplify its operation while supporting an even larger number of client ships for a greater variety of missions. Our input is an employment schedule for navy battle groups of ships operating worldwide, extending over a planning horizon of 90–180 days. We show how we use optimization to advise how to sustain these ships. We have used this model to evaluate new CLF ship designs, advise what number of ships in a new ship class would be needed, test concepts for forward at‐sea logistics bases in lieu of conventional ports, demonstrate the effects of changes to operating policy, and generally try to show whether and how the CLF can support planned naval operations. Published 2008 Wiley Periodicals, Inc. Naval Research Logistics 2008     

A generalized model for estimation of aerodynamic forces and moments for irregularly shaped bodies

A novel method for estimation of an aerodynamic force and moment acting on an irregularly shaped body (such as HE projectile fragments) during its flight through the atmosphere is presented. The model assumes that fragments can be approximated with a tri-axial ellipsoid that has continuous surface given as a mathematical function. The model was validated with CFD data for a tri-axial ellipsoid and verified using CFD data on aerodynamic forces and moments acting on an irregularly shaped fragment.The contribution of this method is that it represents a significant step toward a modeling that does not require a cumbersome CFD simulation results for estimation of fragment dynamic and kinematic parameters. Due to this advantage, the model can predict the fragment motion consuming a negligible time when compared to the corresponding time consumed by CFD simulations. Parametric representation (generalization) of the fragment geometrical data and the conditions provides the way to analyze various correlations and how parameters influence the dynamics of the fragment flight.     

Challenges of institutional coordination in complex defense acquisition programs: the case of the Republic of Korea’s F-X program

Decision-making in defense acquisition programs in the Republic of Korea (ROK) has been problematic, especially in highly advanced complex systems. The highly disputed force modernization program for the ROK Air Force’s fifth-generation fighter, dubbed the Fighter eXperiment, went through extreme turbulence during the type selection phase. The gist of the turbulence became evident through poor institutional coordination within the defense acquisition authorities that eventually forced them to rescind the decision generated from their own yearlong efforts, thus basically shooting themselves on the foot. The paper highlights the background of the program and reviews the institutional elements that influenced the decision-making process, and conclude that the absence of an effective coordination mechanism has made decision-making in complex defense programs even more troublesome.     

公安边防部队参与涉外联合行动的现状和发展趋势探析

目前公安边防部队参与涉外联合行动主要包括联合执法打击跨国犯罪、承担维和任务维护世界和平、参与涉外联合演习打击恐怖主义等形式。随着国家间联合协作的不断加强,公安边防部队参与涉外联合行动朝着合作范围不断扩大、合作模式更加多样、执法一体化日益明显的趋势发展。     

公安消防部队心理咨访关系影响因素分析

公安消防部队心理咨询工作可划分为主观系统和客观系统,与此相关联,心理咨访关系的影响因素也可以划分为主观因素和客观因素两个方面。系统要素与系统本身以及各个子系统之间的相互影响和作用,可从模型构建中得到揭示。     

反潜战仿真系统目标仿真建模与设计

反潜战仿真系统是反潜武器装备研制、反潜作战能力评估、反潜战术战法研究的有效手段,因此能否提供高逼真度的目标潜艇仿真将直接影响到反潜作战仿真系统的整体性能。从未来潜艇作战环境出发,分析了潜艇仿真的功能组成,建立了仿真模型体系,提出了基于模型库的潜艇仿真设计方案和实现方法,为反潜战仿真系统的建立提供了有力的支撑。     

直列式内燃机往复惯性力对瞬时转速影响的仿真研究

提出了两种由直列式内燃机往复惯性力计算转速波动的仿真模型 ,对不同气缸间惯性力的相位耦合进行了仿真分析 ,证明缸数对转速波动的幅度和频率均有着很大的影响 ;利用希尔伯特变换对转速波动信号进行时频分析 ,证明了多缸机转速波动波形为调频余弦曲线     

力的空间连续条件及应用研究

分析了力的空间不连续性 ,导出了力的空间连续条件 ,并结合实例提出了两种实现力值连续变化的轨道计算方法