Damage of multi-layer spaced metallic target plates impacted by radial layered PELE

Three different kinds of PELE (the penetrator with lateral efficiency) were launched by ballistic artillery to impact the multi-layer spaced metal target plates. The impact velocities of the projectiles were measured by the velocity measuring system. The damage degree and process of each layer of target plate impacted by the three kinds of projectiles were analyzed. The experimental results show that all the three kinds of projectiles have the effect of expanding holes on the multi-layer spaced metal target plates. For the normal structure PELE(without layered) with tungsten alloy jacket and the radial layered PELE with tungsten alloy jacket, the diameters of holes on the second layer of plates are 3.36 times and 3.76 times of the diameter of the projectile, respectively. For radial layered PELE with W/Zr-based amorphous composite jacket, due to the large number of tungsten wires dispersed after the impact, the diameter of the holes on the four-layer spaced plates can reach 2.4 times, 3.04 times, 5.36 times and 2.68 times of the diameter of the projectile. Besides, the normal structure PELE with tungsten alloy jacket and the radial layered PELE whit tungsten alloy jacket formed a large number of fragments impact marks on the third target plate. Although the number of fragments penetrating the third target plate is not as large as that of the normal structure PELE, the area of dispersion of fragments impact craters on the third target plate is larger by the radial layered PELE. The radial layered PELE with W/Zr-based amorphous composite jacket released a lot of heat energy due to the impact of the matrix material, and formed a large area of ablation marks on the last three target plates.     

金属靶体材料动力硬度测试及动态阻力分析

以高速侵彻下45钢靶体侵彻阻力为研究对象,开展了弹体高速侵彻45钢靶体试验,获取了典型弹体对45钢靶体的成坑参数。基于高速侵彻阻力模型对靶体侵彻阻力及影响因素进行分析。结合流体动力学侵彻模型对不同弹体材料侵彻45钢靶体侵彻深度规律进行研究。研究结果表明:随着撞击速度的增大,45钢的靶体阻力从5. 13 GPa减小到3. 7 GPa;基于材料动力硬度测试方法的靶体动态阻力测试结果和理论计算结果吻合较好;随着靶体动态屈服强度的增大,靶体阻力呈线性增大的趋势;侵彻深度及靶体动态阻力理论计算结果和试验数据吻合较好,说明所提动态阻力确定方法可行,可为高速侵彻动力学研究提供参考。     

次级通道估计误差对Fx-Newton算法的影响

Fx-Newton算法在执行过程中需要估计次级通道模型,针对主被动隔振工程应用中次级通道估计存在误差的问题,假设输入信号为正弦信号,建立含次级通道估计误差的Fx-Newton算法结构模型,推导了Fx-Newton算法的稳定性条件,并就相位误差和幅值误差对Fx-Newton算法稳定性和收敛性的影响做了详细阐述。最后对两自由度主被动隔振模型开展仿真研究,验证了理论分析结果。     

面向作战任务的最小风险传感器调度方法

基于风险理论提出一种面向不同目标探测任务的传感器调度方法。将主动传感器辐射被截获风险和目标探测风险结合起来,建立一般目标探测框架下的传感器最小风险调度模型。分目标跟踪、目标识别和目标威胁等级评估三种情况将传感器最小风险调度模型具体化,给出不同情况下目标探测风险值的计算方法。针对模型的求解提出一种基于混沌思想、反向学习和双向轮盘赌的改进人工蜂群算法。通过仿真实验证明了模型的可行性和算法的有效性。     

面向快速响应发射的机动测控力量构建

快速响应发射是太空作战背景下实现快速进入、反击作战及重建太空信息支援作战能力的重要保障。立足未来太空作战需要,本文提出构建全域机动测控力量的设想。该测控力量以快速响应发射、应急航天搜救以及商业航天发射为目标,并具备全面对抗条件下全域范围内机动作战、独立遂行测控任务的能力。文章研究分析了测控力量作战编成,并对后续作战应用进行探讨,以完善现有测控力量体系、提升测控作战能力。     

Bringing Military Conduct out of the Shadow of Law: Towards a Holistic Understanding of Rules of Engagement

In this article, I outline a holistic approach to the military concept of “Rules of Engagement” (ROE), which complements the legal aspects of ROE with considerations of operational and political requirements for the use of military force. Drawing upon two illustrative cases from the US military experience with the use of ROE, I demonstrate that ROE for any particular military operation should be formulated to balance optimally, if not harmonize fully, the legal, operational and political concerns related to the use of force. In this task, political decision-makers and military practitioners alike are confronted with unavoidable and real-life dilemmas. How these dilemmas are handled has significant implications for how legal requirements concerning accountability and concerns for civilian lives in military combat can be preserved through ROE.     

作战数据工程建设与发展

战争形态正加速向信息化战争演变,数字化作战成为主要形式,作战数据以前所未有的深度广度进入战争全脉络,成为作战的核心,影响着战争进程甚至决定成败。习主席高度重视作战数据建设,多次指出我军数据积累严重不足是军事斗争准备的短板弱项。因此,建设完善配套的作战数据库和形成战时高效的作战数据保障能力,对获取作战信息优势、提升指挥控制能力至关重要,对于提高我军基于网络信息体系的联合作战能力具有重要的支撑作用。     

国防领域技术预警流程研究

技术预警是对技术突破和由此引起的军事、政治、经济和社会危机的预测,是从国家安全的根本利益出发,以保持己方军事优势、防止敌人"技术突袭"为宗旨的技术发展预测。研究回顾了国内外技术预警研究历程,从前期准备、预警清单、技术调查、分析评估等四个主要环节,全面分析国防领域技术预警的具体流程,为国防领域技术预警系统的构建与应用提供支撑。     

大力弘扬改革创新时代精神 加快建设世界一流高等教育院校

习主席在庆祝改革开放40周年大会上的重要讲话,是新时代改革开放再出发的宣言书和动员令。学习贯彻习主席重要讲话精神,关键要全面推进学校深化改革创新,深刻认清弘扬改革创新精神对于建设世界一流高等教育院校的重大意义,牢牢扭住全面深化改革创新的主攻方向,科学处理深化改革创新的重大关系,既以顽强的战略定力坚定不移深化改革,又运用科学的工作方法积极稳妥地推进改革。     

信息化条件下基于大数据的后装一体化保障构想

由于契约的不完全性、专用性资产的存在,导致民企参军的谈判过程中,一方可能利用另一方因专用性资产投资的锁定效应,而采取机会主义行为将另一方套牢,攫取可占用专用性准租金。这种套牢风险不是单向的,而是双向的,双向套牢风险的存在不仅会降低军品科研生产项目建设质量,而且还会严重挫伤民营企业承担军品科研生产任务的积极性。为有效防范双向套牢风险,本文将从博弈论的角度,建立民营企业与军队采办部门的期望收益与专用性资产投资的函数关系和博弈矩阵,分阶段讨论民营企业与军队采办部门所面临的套牢风险大小及各自的最佳行为选择。以降低民企参军面临的套牢风险,引导更多优势民营企业进入军品科研生产与维修领域,推动军民融合的深度发展。