基于虚拟仪器的导弹质心定位系统设计与实现

针对传统导弹质心定位设备精度低,操作繁琐等弊端,从弹体质心定位原理出发,合理选取力矩计算参考点,建立质心定位模型;以基于PCI总线的内插式DAQ虚拟仪器测控平台为依托,突出“通用性、精确性、高效性”的设计理念,制定系统总体设计方案,围绕导弹质量测量与质心定位技术展开研究与工程实现;实际应用表明,本系统可拓展应用于多型导弹和大型圆柱形工件的称重与质心定位,满足导弹飞行控制研究和装配工艺要求。     

采用捷联惯导系统的反辐射导弹抗关机制导方案研究

本文提出了一种基于被动雷达导引头＋捷联惯导系统的空地反辐射导弹复合制导方案。在此主制导方案的基础上，设计了“目标视线角优化估计”抗关机制导方案，建立了反辐射导弹抗关机性能评估准则，最后通过数学仿真，验证了本文所述方案的有效性。关键词     

充液金属圆柱壳受弹体冲击的整体变形与局部破坏分析

在地基梁类比方法基础上,建立了一组充液金属圆柱壳受平头弹体侧向正冲击的理论分析模型,该模型可以确定冲击过程圆柱壳的整体变形及弹性的穿透破坏,利用该模型计算了弹道极限速度,弹体及圆柱壳的冲击响应历程,特别地,分析了内压对弹道极限速度等参数的影响,得到了内压与弹道极限速度的关系帮一些有意义的结论,理论结果与已有实验结果基本吻合。     

混凝土靶板冲击响应的经验公式

对预测混凝土靶板在弹丸撞击下的响应和破坏的经验公式进行了综述,包括预测侵彻深度、痂斑破坏和穿透的经验方程,并对国外现有的有关钢筋混凝土靶板抗弹设计和评估的规范进行了评论。结果表明,现有经验模型的不完备性和现有设计和评估准则的自身缺陷,清楚地说明有必要在混凝土撞击、侵彻和穿透这一活跃研究领域,做进一步的实验、理论和数值模拟工作,以便对余留问题找到令人满意的答案。     

Application of stochastic differential games to medium-range air-to-air missiles

Stochastic differential game techniques are applied to compare the performance of a medium-range air-to-air missile for three different thrust-mass profiles. The measure of the performance of the missile is the probability that it will reach a lock-on point with a favorable range of guidance and flight parameters during a fixed time interval [0,t _f ].     

厚金属靶在弹丸打击下的侵彻与穿透

 给出了预测厚金属靶在不同形状弹头弹丸大速度范围内打击下侵彻与穿透的简单分析方程。在方程的建立过程中，假定变形是局部化的、冲击能量仅由侵彻过程吸收，并进一步假定靶材料对弹丸的平均阻（压）力由两部分组成：一部分基于空穴膨胀理论由于靶材料弹-塑性变形所产生的准静态凝聚阻力；另一部分是考虑了速度效应后的动压力。推导出了预测靶侵彻深度和弹道极限的方程表达式，并与金属靶在不同形状弹头弹丸大速度范围内打击下侵彻与穿透的实验进行了比较。理论预测与实验结果吻合得很好。     

The global deformation and local damage analysis of filled metallic cylindrical shells impacted by missiles

A group of theoretical models has been developed for analyzing transient dynamic response to filled metallic cylindrical shells impacted by flat-nosed missiles at normal obliquity on the basis of the analogy modeling method of beam-on-foundation. It can be used for solving the global deformation and the local failure of cylindrical shells in the impact process. The ballistic limit speed and impact response history have been calculated by this group of theoretical models, and the inner pressure effect on the ballistic limit speed and some parameters are discussed at length. The quantitative relationship between internal pressure and the ballistic limit speed and some significant conclusions have been obtained, which are basically identical with previous experimental results. Project supported by Shanxi Natural Science and Returnee Foundations (no. 971004)     

低空红外小目标外场模拟方法研究

阐述了掠海导弹红外特性模拟的意义，通过分析红外成像系统对点源目标探测的影响因素，确定了红外辐射强度、光谱分布、空间分布、运动速度为模拟特征量。以红外辐射、反射理论为基础，研究了模拟特征量估计方法，给出了两种典型模拟器实现方法。     

Optimal interception with time constraint

This paper considers the problem of minimum-fuel interception with time constraint. The maneuver consists of using impulsive thrust to bring the interceptor from its initial orbit into a collision course with a target which is moving on a well-defined trajectory. The intercept time is either prescribed or is restricted to be less than an upper limit.The necessary conditions and the transversality conditions for optimality are discussed. The method of solution amounts to first solving a set of equations to obtain the primer vector for an initial one-impulse solution. Then, based on the information provided by the primer vector, rules are established to search for the optimal solution if the initial one-impulse trajectory is not optimal. The method is general, in the sense that it allows for solving the problem of three-dimensional interception with arbitrary motion for the target.Several numerical examples are presented, including orbital interceptions and interception at hyperbolic speeds of a ballistic missile.This research was supported by US Army Strategic Defense Command, Contract No. DASG60-88-C-0037.