装甲器材申请计划及辅助决策模型问题研究

通过对我军装甲装备器材管理体制中,器材计划请领与供给的现状分析,提出了运用运筹学的理论和方法,结合计算机信息化管理手段,探讨装甲装备器材消耗规律模型和进行申请计划辅助决策分析的一整套解决方案。     

目标的规避过程与搜索运动

应用随机过程的观点,研究了静态目标和动态目标的几种规避方式、运动规律和目标位置的概率分布,导出了在上述几种情况下对规避目标的最优（理论）搜索计划。     

Design of accelerated life testing plans under multiple stresses

Accelerated life testing (ALT) using multiple stresses is commonly used in practice to resemble the operating stresses at normal operating conditions and obtain failure observations in a much shorter time. However, to date, there is little research into the theory of planning ALT for reliability estimation with multiple stresses. ALT with multiple stresses can result in a large number of stress‐level combinations which presents a challenge for implementation. In this article, we propose an approach for the design of ALT plans with multiple stresses and formulate multistress test plans based on different objectives and practical constraints. We develop a simulated annealing algorithm to efficiently determine the testing plan parameters. We demonstrate the proposed method with examples based on an actual test conducted using three stress types. The obtained optimal test plans are compared with those based on fractional factorial design. © 2013 Wiley Periodicals, Inc. Naval Research Logistics 60: 468–478, 2013     

面向作战仿真的指控系统建模技术研究

重点研究指控系统的建模技术,建立了群指挥所、方面作战指挥所和平台指挥所三级指控系统的模型,并确立了三者之间的层次和控制的逻辑关系。从作战方案和战术响应两方面对指控系统进行"静态的"和"动态的"建模,实现了作战双方基于感知态势的闭环仿真。这些模型在海军某作战仿真系统中得到了应用,仿真实验表明该指控系统模型满足作战仿真系统的作战需求,能够提高作战仿真的真实性和合理性。     

Designing acceptance sampling schemes for life testing with mixed censoring

Mixed censoring is useful extension of Type I and Type II censoring and combines some advantages of both types of censoring. This paper proposes a general Bayesian framework for designing a variable acceptance sampling scheme with mixed censoring. A general loss function which includes the sampling cost, the time‐consuming cost, the salvage value, and the decision loss is employed to determine the Bayes risk and the corresponding optimal sampling plan. An explicit expression of the Bayes risk is derived. The new model can easily be adapted to create life testing models for different distributions. Specifically, two commonly used distributions including the exponential distribution and the Weibull distribution are considered with a special decision loss function. We demonstrate that the proposed model is superior to models with Type I or Type II censoring. Numerical examples are reported to illustrate the effectiveness of the method proposed. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2004     

Production‐inventory systems with imperfect advance demand information and updating

We consider a supplier with finite production capacity and stochastic production times. Customers provide advance demand information (ADI) to the supplier by announcing orders ahead of their due dates. However, this information is not perfect, and customers may request an order be fulfilled prior to or later than the expected due date. Customers update the status of their orders, but the time between consecutive updates is random. We formulate the production‐control problem as a continuous‐time Markov decision process and prove there is an optimal state‐dependent base‐stock policy, where the base‐stock levels depend upon the numbers of orders at various stages of update. In addition, we derive results on the sensitivity of the state‐dependent base‐stock levels to the number of orders in each stage of update. In a numerical study, we examine the benefit of ADI, and find that it is most valuable to the supplier when the time between updates is moderate. We also consider the impact of holding and backorder costs, numbers of updates, and the fraction of customers that provide ADI. In addition, we find that while ADI is always beneficial to the supplier, this may not be the case for the customers who provide the ADI. © 2011 Wiley Periodicals, Inc. Naval Research Logistics, 2011     

Optimal control of a capacitated inventory system with multiple demand classes

This article studies the optimal control of a periodic‐review make‐to‐stock system with limited production capacity and multiple demand classes. In this system, a single product is produced to fulfill several classes of demands. The manager has to make the production and inventory allocation decisions. His objective is to minimize the expected total discounted cost. The production decision is made at the beginning of each period and determines the amount of products to be produced. The inventory allocation decision is made after receiving the random demands and determines the amount of demands to be satisfied. A modified base stock policy is shown to be optimal for production, and a multi‐level rationing policy is shown to be optimal for inventory allocation. Then a heuristic algorithm is proposed to approximate the optimal policy. The numerical studies show that the heuristic algorithm is very effective. © 2011 Wiley Periodicals, Inc. Naval Research Logistics 58: 43–58, 2011     

数据拟合加速寿命试验智能优化设计

加速寿命试验方案的优劣,直接影响着试验的成本、效益和试验结果的准确性,因此有必要对试验方案进行优化设计,寻找最佳应力水平和试样分配比例,使加速寿命试验的结果最准确、代价最小.利用目标函数的连续性,提出一种基于离散数据的拟合方法,将加速寿命试验的优化设计转化为显函数的约束极值求解问题,然后将智能优化算法应用到加速寿命试验...     

弹炮结合目标防空部署方案优化评估

针对弹炮结合目标防空,选取主攻方向角、有效杀伤重叠区、有效火力范围、抗干扰能力、兵力机动能力、圆周遮蔽角、抗击概率、被掩护目标的安全性和火力密度9个评估准则,提出了弹炮结合目标防空部署方案的优化模型和评估方法.     

教育成本刍议

文章试图从教育成本概述、教育成本的类别、教育成本核算、教育成本预测与计划以及教育成本控制等方面对教育成本进行论述。