考虑质心流动与偏移的通用弹道仿真模型

引入了质心坐标系的概念,对弹体坐标系的定义作了适当修正,给出了考虑质心流动与偏移的通用弹道仿真模型及相应的转动惯量与惯性积的计算公式     

坦克射击三维视景实时立体显示研究

通过对人体生理学和计算机图形学的分析,阐述了三维视景实时立体显示的原理,提出了实现方法,并基于 AGC—ProV三维图形卡,对三维视景实时立体显示开发进行了论述.     

战车火控系统软件可靠性的仿真测试平台

以平均无故障时间间隔(MTBF)和任务成功率为主指标,以某型坦克火控系统为载体,提出了战车非制导武器火控系统软件可靠性仿真测试平台的方案,并对其软件可靠性的仿真测试与验证技术进行了讨论.     

基于 AR 模型和SPRT 检验法的过程状态监测

本文利用自适应卡尔曼滤波器原理建立机械系统过程监测模型—AR模型,并根据AR模型系数的变化可以表征系统过程状态这一特点,通过序贯概率比(SPRT)这一假设检验法,对机械系统的运行状况进行判别。实验表明,该方法行之有效,最后,本文给出了实验结果。     

Planning accelerated life tests for censored two‐parameter exponential distributions

We consider optimal test plans involving life distributions with failure‐free life, i.e., where there is an unknown threshold parameter below which no failure will occur. These distributions do not satisfy the regularity conditions and thus the usual approach of using the Fisher information matrix to obtain an optimal accelerated life testing (ALT) plan cannot be applied. In this paper, we assume that lifetime follows a two‐parameter exponential distribution and the stress‐life relationship is given by the inverse power law model. Near‐optimal test plans for constant‐stress ALT under both failure‐censoring and time‐censoring are obtained. We first obtain unbiased estimates for the parameters and give the approximate variance of these estimates for both failure‐censored and time‐censored data. Using these results, the variance for the approximate unbiased estimate of a percentile at a design stress is computed and then minimized to produce the near‐optimal plan. Finally, a numerical example is presented together with simulation results to study the accuracy of the approximate variance given by the proposed plan and show that it outperforms the equal‐allocation plan. © 1999 John Wiley & Sons, Inc. Naval Research Logistics 46: 169–186, 1999     

A note on parallel machine replacement

Jones, Zydiak, and Hopp [1] consider the parallel machine replacement problem (PMRP), in which there are both fixed and variable costs associated with replacing machines. Increasing maintenance cost motivates replacements, and a fixed replacement cost provides incentive for replacing machines of the same age in clusters. They prove two intuitive but important results for finite- or infinite-horizon PMRPs, which significantly reduce the size of the linear programming (LP) formulation of the problem and computing efforts required to obtain an optimal replacement policy. Their results are the no-splitting rule (NSR) and the older cluster replacement rule (OCRR). Under a slightly weaker set of assumptions, we prove a third rule, the all-or-none rule (AONR), which states that in any period, an optimal policy is to keep or to replace all the machines regardless of age. This result further reduces the size of the LP formulation of the PMRP. © 1993 John Wiley & Sons, Inc.     

Design of a two-stage screening procedure using correlated variables: A loss function approach

Because of the rapid growth in automated manufacturing systems, complete inspection (screening) becomes very attractive. Sophisticated automated inspection equipment can efficiently process a large number of items and produce consistent and accurate results. However, in many applications the performance variable of interest is expensive to measure even by using automated inspection equipment. One alternative to deal with this problem is to use another variable, which is correlated with the performance variable and relatively inexpensive to measure as the screening variable. Since a screening variable is not perfectly correlated with the performance variable, decision errors that reject good-quality items or accept poor-quality items may occur. To reduce these errors, we propose a two-stage screening procedure in which the first-stage screening is based on a screening variable and the second-stage screening is based on the performance variable. The second-stage screening is performed only on those items of which the disposition cannot clearly be determined by the result of first stage screening. Three losses are considered in the formulation of the model. The first loss is the cost of inspection, the second loss is the cost associated with the disposition of rejected items, and the third loss is incurred by imperfect quality of accepted items. The optimal solution is derived and compared to the single-stage screening procedures based on the screening variable and the performance variable. In addition, the sensitivity of the optimal screening procedure with respect to the correlation between the performance variable and the screening variable and the cost of inspecting the performance variable is discussed and demonstrated by numerical results.     

论吉田松阴的兵学与《孙子兵法》——以《孙子评注》为中心

本文以日本幕末时期（1853-1867）著名倒幕志士、兵学家吉田松阴（1830—1859）所著《孙子评注》为中心,重点分析其借助《孙子兵法》而构筑的兵学思想的三个特点：重视民政和仁政,强调将领的道德勇气,坚持进攻优先。这一切构成了他批判幕府国防政策的依据,是其走向政治激进主义的重要思想支柱。     

社会主义核心价值体系建设路径的当代开拓

社会主义核心价值体系要在实践中真正成为人民群众的行动指南,必须努力开拓其现实化的具体途径.坚持社会主义核心价值体系的科学引领力,可以筑牢当代革命军人核心价值观培育的思想道德基础;发挥当代革命军人核心价值观的巨大推动力,可以拓展社会主义核心价值体系建设的崭新生长点;注重"二力"并发,对促进中华民族共有精神家园建设具有重要价值.     

中世纪外国军事思想初探

军事思想是人们对战争、军队和国防的基本问题的理性认识。研究和总结人类各个时期军事思想的历史发展和特点,是对军事领域问题探讨的过程之一,是人类在军事领域自我认知的手段和途径,是超越自我、实现突破的必经之路。中世纪世界军事思想在特定的历史条件下.经历了一个缓慢的历史演变过程,其战争观、军队建设和战略战术思想有了较大的发展,呈现出缓慢性、演进性和多元性的特征。