批量到达的多服务台排队模型求解

用概率母函数的方法求解了批量到达，多服务台排队模型队长的稳态分布、均值、顾客到达不用等候的概率。最后简述了结论在呼叫中心设计中的应用。     

基于排队论的火车站售票排队系统的分析与研究

运用排队模型理论对火车站售票排队系统进行模拟仿真,通过分析模拟出售票窗口的数目对火车站售票排队系统的影响.火车站可以根据客流量动态控制售票窗口数目,有效地为车站节约成本,增加旅客的满意度.应用MATLAB模拟运算结果与成都火车北站实际数据进行对比分析,证明该仿真系统的有效性.     

具有Bernoulli反馈的M/M/1/N工作休假排队系统

研究了带Bernoulli反馈的M/M/1/N工作休假排队模型。工作休假策略为空竭服务多重工作休假。完成服务的顾客以概率p(0相似文献   

一种通用多路电话查询系统的设计和实现

利用语音卡技术和数据库技术，设计了一种通用的多路电话查询系统框架。采用在数据库中对语音流程信息的查询，避免了流程信息在程序中的固化。使系统不但可以灵活修改语音流程；而且使其更具通用性，为其各种查询动作的修改和升级留下了较大空间。     

灰色关联理论在国内生产总值构成分析中的应用

国内生产总值能够全面反映全社会经济活动的总规模,是衡量一个国家或地区经济实力,评价经济形势的重要综合指标,世界上大多数国家都采用这一指标.研究国内生产总值的构成对研究国民经济有着重要的贡献.国内生产总值有着众多构成要素,其中包括:农业、工业、建筑业、交通运输仓储及邮电通信业、批发零售贸易及餐饮业、房地产业等等.就国内生产总值的6个主要构成要素,在定性分析的基础上运用灰色关联理论对构成因素进行定量的深入分析.     

生产—库存模型中多服务台排队系统性能分析

在M/M/c/K排队模型的基础上增加(e,d)策略及单重休假策略,提出一个拟生灭过程矩阵,利用矩阵几何解给出了系统稳态队长分布.     

基于可视化的界面生成系统设计与实现

基于可视化的界面生成系统是随着编程工具的不断发展和完善而出现的，它使界面设计变得直观、容易，从而程序员就可以从复杂的界面设计中解脱出来，集中主要精力来实现程序的实际功能。详细介绍了一个界面生成系统的设计过程，重点讨论了系统关键部分设计、设计思想及MFC编程的一些技术问题。最后对系统的性能作出评价，并提出改进的方向。     

Dynamic response analysis of a floating mooring system

An innovative floating mooring system with two or more independent floating mooring platforms in the middle and one rigid platform on each side is proposed for improving efficiency and safety in shallow water. For this new system, most of collision energy is absorbed through the displacement of floating platforms. In order to illustrate the validity of the system, a series of model tests were conducted at a scale of 1:40. The coupled motion characteristics of the floating mooring platforms were discussed under regular and irregular waves, and the influences of wave direction and other characteristics on dynamic response of the system were analyzed. The results show that the mooring system is safest at 0° of wave incident angle, whereas the most dangerous mooring state occurs at 90° of wave incident angle. Motion responses increase with the increase of wave height, but are not linearly related to changes in wave height.     

Nonlinear coupled analysis of a single point mooring system

Coupled effects on a single point mooring(SPM) system subjected to the combined action of wind,waves and current are studied in this paper. Due to the complicatedness of the sea state and the huge size of the vessel,physical experimental study is both time consuming and uneconomical,whereas the numerical study is cost-effective and DNV software provides powerful SESAM software in solving the issues. This paper focuses on the modeling process of the SPM system,catenary equilibrium calculation,static analysis of the vessel in three different scenarios,and dynamic response simulation of the SPM system under environmental excitations. The three scenarios in study are as follows:the SPM is under the combined function of(a) wind,waves and current,(b) wind and waves,(c) current and waves. They are so set that one can compare the contributions of different types of loads in both static and dynamic studies. Numerical study shows that wind and current are the two major factors contributing to the mooring line tension,and surge and sway are the two dominant motions of the moored vessel subjected to environmental excitations.     

含裂纹故障多自由度齿轮系统的动力学分析

为探讨齿轮系统裂纹故障的非线性动力学机理,研究含裂纹故障的四自由度齿轮系统的动力学特性,考虑时变啮合刚度及非线性间隙的影响,建立含裂纹故障的齿轮四自由度啮合耦合动力学模型,分析裂纹故障对系统啮合刚度的影响;采用谐波平衡法给出系统的解析解,分析裂纹故障及齿轮系统参数对齿轮传动系统的动力学行为的影响.结果表明,裂纹故障能够引起齿轮系统的幅值跳跃、分岔现象和系统共振,从而为齿轮箱的设计及裂纹故障的诊断提供依据.