Abstract: Transport organization for inner enterprises is a complicated, stochastic service system. When a locomotive is running in the system, it is under the organizer’s constant adjustment, and its running time with task or without task is being interfered at random. All of these make the system hard to depict by mathematics accurately. On the basis of fully field survey and research, this paper forms the mathematic model for the locative dispatch simulation system. After analyzing the real operating regulation of locomotive and dispatching principles, it also gives the state shift function of locomotive. And then, according to the method of soft engineering, it carries on the overall design and develops this simulation system software. At last, a case is analyzed. Through this system we get anticipated result, which would prove that the system is an important and effective tool to study the optimization of the enterprise inside transport. According to the detailed simulation analysis, three pieces of advice for the locomotive optimal are put forward. (1) Dispatching locomotive should cooperate well with infrastructural facilities; make sure they can work harmoniously. (2) Dispatching locomotive should take this way. That is the locomotive should not only be dispatched freely in each area, but also be dispatched fixedly in one area.( 3) The usage of the transfer trains should be raised; meanwhile, the locomotive’s idling time should be lowed.

Key words: dispatch, simulation system, organization optimization, inner transport plan.

摘要： 企业内部运输组织是服务模式复杂的随机服务系统，机车在运行中受到系统组织者（站调）不断调整，机车的单机走行时间和作业走行时间受到多种因素的干扰影响，具有很强的随机性。针对此类问题的特点，本文建立了机车调度仿真系统的仿真模型，在分析实际机车生产规律和调度原则的基础上，抽象出了机车状态转移函数；采用软件工程方法，对系统进行总体和详细设计，开发了仿真软件系统。并以某钢铁企业为实例进行仿真实验，通过仿真分析，提出三项优化措施：(1）机车需配合站区设备进行优化整合，使机车利用与设备利用能够协调均衡使用；(2）机车运用应采取分区运用和固定专用相结合，分工负责与灵活运用相结合的方式；(3）提高小运转的利用率，减少机车的单机空走率。

关键词: 机车调度, 仿真系统, 组织优化, 内部运输