论文部分内容阅读
编组站解编系统可以看成是一个特殊类型的排队服务系统,进入调车场的车组为顾客输入流,牵出线调机为服务机构,调车场为顾客逗留空间。本文建立了由一个集结去向的解—集—编过程所构成的排队服务系统的模型:这是一个成批到达成批服务的等待制服务系统。对于该排队系统模型很难用分析计算法求出精确解,但可用模拟方法求得近似解。本文先用计算机模拟方法求出了在牵出线负荷ρ一定的条件下,去向车流量 N_i 和其编成辆数 m_i 已知的某个去向所需占用的股道数。在考虑了各种变化条件的前提下,用正交法安排了模拟试验,再对这些模拟计算结果进行回归分析得到了任一去向所应占的股道数计算公式。而对于整个调车场股道数来讲,则可通过将各去向的应占股道数相加而得到。利用实际的数据资料对该计算方法进行验算,说明该方法是切实可行的。
The marshalling station disassembling system can be regarded as a special type of queuing service system. The team entering the shunting yard inputs the flow to the customer, the pulling-out line dispatching machine serves the service organization, and the shunting yard provides space for customers. This paper establishes a model of queuing service system consisting of a process of assembly-de-soliciting-assembly-coding: it is a system of waiting system for batch delivery of batch service. For the queuing system model it is difficult to find the exact solution by analytical method, but the approximate solution can be obtained by simulation. In this paper, computer simulation is used to find out the number of shares of a certain destination that is required to be inbound traffic N_i and the number of vehicles m_i which are known to be known under a certain load of pullout line ρ. Taking into account the various conditions of the premise, using orthogonal method to arrange the simulation test, and then the results of these simulation regression analysis of any direction to get the number of shares to be calculated. For the whole shunt yard share number of channels, you can by the direction of the share of the number of shares to get. Using the actual data to verify the calculation method, this method is feasible.