基于模拟谈判的装备采购合同知识产权条款 拟制研究

装备采购是我国国防能力建设最重要的手段之一,对加强我国军事能力建设、提高国际影响力至关重要。为了对装备采购合同各方知识产权的归属、利益分配等核心要素进行明确,对涉及的关键、领先国防知识产权进行保护,本文针对军队装备采购合同中知识产权相关条款较少的问题,开展了装备采购合同知识产权条款拟制研究。研究首先分析了装备采购的特点,然后按照装备采购知识产权从产生到转化的全过程,研究拟制了目标知识产权、知识产权权利归属、技术秘密使用权、实施权利优先、甲方的使用和限制及纠纷处理等六条具有代表性的装备采购知识产权条款,最后通过模拟谈判的形式,结合具体合同开展条款适用性研究。本研究可为军队装备采购合同知识产权条款的拟制提供可选思路。     

美军HPM效能评估模型及仿真工具箱

鉴于高功率微波(HPM)效应研究耗时、昂贵及其效能评估的复杂性,美国多个军种开发了能够在减少效应实验需求的同时进行效能评估的HPM评估模型及仿真工具箱。本文重点介绍了美军开发的DREAM、RF-PROTEC、JERM和HPM LAVA四款模型和仿真工具箱,对每款模型和工具箱的主要功能、特点、开发机构及诞生时间等进行了介绍和对比。这些模型和工具箱在近几十年中随着HPM的发展得到了持续应用并不断更新,极大推动了美军HPM效能评估的发展。此外,美军也重视将HPM武器融入常规武器作战体系,并尝试将HPM效能评估纳入现有战场效能评估金字塔模型。因此,这四款模型和工具箱均可向战场任务仿真系统传送数据。本文对美军战场效能评估金字塔模型也做了介绍,以供国内相关研究人员参考。     

美国军方科研基金资助策略研究(2010—2020年)

美国能够保持军事技术的长期领先与其稳定的军事科研投入和科学的资助策略密不可分,但以往研究存在切入角度单一、关注领域有限、缺少长时间跨领域研究等不足。本文基于Web of Science数据库收录的2010年至2020年美国军方机构参与资助的科研项目文献数据,分析了美军长期关注的主要研究方向和重点研究领域以及美军主要资助机构及其各自的侧重领域。研究结果表明,美国军方以国防战略目标为根本,超前谋划军事科研资助,坚持基础研究和颠覆性技术研究的平衡,军方主要资助机构重视前沿科技领域,积极开展跨部门跨领域以及跨国合作。该研究对了解美国军事科研资助策略提供了新的视角,对促进我国军事科技发展有一定借鉴意义。     

基于HHM-RFRM的实弹发射风险分析研究

实弹发射是复杂的系统性军事训练活动,在实施前要对其进行风险评估,实施的全过程中要进行风险管理,首要工作是运用科学方法进行风险分析。本文运用系统工程的思想,针对实弹发射这一复杂系统活动,识别得到环境、交通、技术、管理、人员、任务、装备、保障和通信这9类风险情景,进一步分析建立了实弹发射风险等级全息模型（HHM）。在此基础上,运用风险过滤、评级与管理框架（RFRM）,通过初步情景过滤、双重标准过滤、多重标准过滤、主要风险情景的定量评级等步骤对以上风险情景进行过滤分析,得到了环境因素、装备因素和管理因素这3种最重要的风险因素。通过综合运用HHM和RFRM方法分析出的风险因素,能够为决策者进行有针对性的风险评估和风险管理提供一定理论支持。     

军队审计机构运用社会审计力量的SWOT分析与策略

习近平主席为军队审计工作提出了"全覆盖""问题导向"等新要求。在现有审计力量难以满足审计需求的情况下,通过购买社会审计服务、接受社会审计组织劳务派遣等方式组织社会审计力量参与军队审计任务,将是提高军队审计机构工作效率、实现创新发展的有效途径。本文通过SWOT分析法对军队审计机构运用社会审计力量的优势、劣势、机遇和威胁等内外部情况进行全面分析,指出社会审计不仅具有逐利性,在审计目标、审计职权、审计报告等方面也与军队审计存在较大差异,军队需全面了解社会审计的性质及军地审计环境等因素的影响,才能够在正确把握军队审计机构现状的基础上,为军队审计实践探索提供启示和应对策略。     

FE modeling of concrete beams and columns reinforced with FRP composites

Compression and flexure members such as columns and beams are critical in a structure as its failure could lead to the collapse of the structure. In the present work, numerical analysis of square and circle short columns, and reinforced concrete (RC) beams reinforced withfiber reinforced polymer composites are carried out. This work is divided into two parts. In thefirst part, numerical study of axial behavior of square and circular concrete columns reinforced with Glass Fiber Reinforced Polymer (GFRP) and Basalt Fiber Reinforced Polymer (BFRP)bars and spiral, and Carbon Fiber Reinforced Polymer (CFRP) wraps is conducted. The results of the first part showed that the axial capacity of the circular RC columns rein-forced with GFRP increases with the increase of the longitudinal reinforcement ratio. In addition, the results of the numerical analysis showed good correlation with the experimental ones. An interaction diagram for BFRP RC columns is also developed with considering various eccentricities. The results of numerical modeling of RC columns strengthened with CFRP wraps revealed that the number and the spacing between the CFRP wraps provide different levels of ductility enhancement to the column. For the cases considered in this study, column with two middle closely spaced CFRP wraps demonstrated the best performance. In the second part of this research,flexural behavior of RC beams reinforced with BFRP, GFRP and CFRP bars is investigated along with validation of the numerical model with the experimental tests. The results resembled the experimental observations that indicate significant effect of the FRP bar diameter and type ont he flexural capacity of the RC beams. It was also shown that Increasing the number of bars while keeping the same reinforcement ratio enhanced the stiffness of the RC beam.     

Force chains based mesoscale simulation on the dynamic response of Al-PTFE granular composites

Force chains based mesoscale simulation is conducted to investigate the response behavior of aluminum-polytetrafluoroethylene (Al-PTFE) granular composites under a low-velocity impact. A two-dimensional model followed the randomly normal distribution of real Al particles size is developed. The dynamic compressive process of Al-PTFE composites with varied Al mass fraction is simulated and validated against the experiments. The results indicate that, force chains behavior governed by the number and the size of agglomerated Al particles, significantly affects the impact response of the material. The failure mode of the material evolves from shear failure of matrix to debonding failure of particles with increasing density. A high crack area of the material is critical mechanism to arouse the initiation re-action. The damage maintained by force chains during large plastic strain builds up more local stresses concentration to enhance a possible reaction performance. In addition, simulation is performed with identical mass fraction but various Al size distribution to explore the effects of size centralization and dispersion on the mechanical properties of materials. It is found that smaller sized Al particle of com-posites are more preferred than its bulky material in ultimate strength. Increasing dispersed degree is facilitated to create stable force chains in samples with comparable particle number. The simulation studies provide further insights into the plastic deformation, failure mechanism, and possible energy release capacity for Al-PTFE composites, which is helpful for further design and application of reactive materials.     

超声速地空导弹热环境风洞模拟研究

根据国内风洞的情况,比较了超声速地空导弹的飞行条件与风洞模拟能力的差距,分析了热环境风洞实验中应采用的相似准则,以及实验数据的处理方法。     

基于数值SEA算法的反潜C3I系统效能分析

在分析了反潜C3I效能指标的基础上,采用数值SEA逼近算法求解反潜C3I使命轨迹和系统效能度量,建立了反潜C3I的SEA效能分析模型,并给出了系统效能指标灵敏度与关联度分析模型.     

阻尼振荡的数学本质分析

用微分方程定性理论,从平面自治系统奇点的性态角度出发分析了阻尼振荡的数学本质。以全新的视角讨论了三种阻尼情况的本质区别,由此引出了系统在平衡态的稳定性问题。进一步用系统稳定性理论论述了自激振荡器的设计思想。该分析方法也是研究非线性动态电路、动力系统稳定性的有效方法。