摘要
为解决铁路行包配送点的选址问题,在回顾总结物流节点选址问题的动态模型和概率模型的基础上,结合铁路行包运输实际,在一定的前提及假设条件下,建立不确定需求的铁路行包配送点选址问题的数学模型.针对模型求解需要输入的数据量较大、对数据的调整非常灵敏等增加求解困难程度的情况,通过求客户需求的分布函数,进行曲线拟合,对客户需求分布函数积分得出客户需求量,将不确定需求的选址问题转化为确定性选址问题.该方法使求解得到简化、切合实际.
In order to solve the problem of location of distribution sites of railway sidering the probability model and the dynamic baggage ＆ model on logistics nodes, and the practice of gage ＆ parcel transportation, a mathematical model on location of railway baggage parcel, conrailway bag- ＆ parcel distribution sites with uncertain demands is set up under certain precondition and assumption. Aiming at the facts of enormous data requirement and very sensitive parameter/data adjustments which increase the complexity of solving models, a practical method of seeking distribution function is put forward through making curve fitting according to distribution function and finding demand of clients by integrating the curve. Thus the location problem with uncertain demands is transformed to the location problem with certain demands. The method simplifies the way of getting solution and is practical.
出处
《上海海事大学学报》
北大核心
2008年第3期82-86,共5页
Journal of Shanghai Maritime University
关键词
铁路运输
选址
不确定需求
数学模型
铁路行包
railway transport
location
uncertain demands
mathematical model
railway baggage ＆ parcel
