检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:课题组 梁晨[1] 刘小娟 龚艳侠 赵琨[1] 温卫娟[1] Task Group(Beijing Wuzi University,Beijing101149,China)
出 处:《中国流通经济》2019年第6期118-126,共9页China Business and Market
基 金:北京市社会科学基金项目“产业转移下的京津冀物流系统动态协同路径研究”(17GLB020)
摘 要:基于轴辐理论构建多枢纽混合轴辐式物流网络,对降低京津冀区域物流网络成本、提高区域物流网络利用率进而促进区域协调发展具有重要意义。以网络成本最优为目标函数,采用主成分分析法,利用京津冀13个城市物流综合发展水平指标预测值,以遗传算法借助MATLAB进行求解,结果发现:第一,京津冀区域内货物运输以直通和一次中转为主要形式,枢纽节点为3个时,区域物流网络成本最优,廊坊、沧州和保定将成为区域物流枢纽节点,可以加大三地的物流系统建设;第二,物流网络成本随枢纽节点的增加先降低后升高,枢纽节点数量存在最优解,合理的枢纽节点数量可以降低物流网络总成本;第三,构建轴辐式物流网络要综合考虑绕行和折扣系数对成本的影响,由于中转枢纽的增加,货物经多枢纽中转的绕行成本将大于货运量整合后运价折扣产生的规模效益;第四,折扣系数对网络成本影响较大,但对网络结构的影响相对较小。The construction of multi-hub hybrid logistics network is of great significance for optimizing network structure, reducing regional logistics costs,and increasing the utility of regional logistic network in Beijing-Tianjin-Hebei region. Taking the optimal network cost as the objective,with the help of PCA,and based on the forecast data of Urban Logistics comprehensive development level in 13 cities in Beijing-Tianjin-Hebei region,a multi-hub hybrid hub-and-spoke logistics network model is constructed based on Hub-and-Spoke theory,and the model is simulated by genetic algorithm with the help of MATLAB. The main conclusions are as follows:(1)when the hub node is 3,the construction of Beijing-Tianjin-Hebei regional mixed huband- spoke logistics network has the best regional logistics network cost,and the hub nodes are Langfang,Cangzhou and Baoding respectively;(2)with the increase of the hub node,the network cost of the multi-hub mixed hub-and-spoke logistics network first decreases and then increases,reasonable number of hub nodes can reduce the total cost of the whole network,and there is an optimal solution to the cost of the multi- hub hybrid hub- spoke logistics network;(3)we should comprehensively consider the impact of passing round and discount coefficient on the cost;(4)changing the discount coefficient has a greater impact on the network cost,and has a relatively small impact on the network structure.
关 键 词:多枢纽混合轴辐式物流网络 京津冀区域 轴辐理论 遗传算法
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.191.5.237