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Operations Research, Systems Engineering and Industrial Engineering Commons™
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Articles 1 - 2 of 2
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Vehicle Routing Optimization Model Of Cold Chain Logistics Based On Stochastic Demand, Xiangguo Ma, Tongjuan Liu, Pingzhe Yang, Rongfen Jiang
Vehicle Routing Optimization Model Of Cold Chain Logistics Based On Stochastic Demand, Xiangguo Ma, Tongjuan Liu, Pingzhe Yang, Rongfen Jiang
Journal of System Simulation
Abstract: The costs of vehicle distribution in the process of cold chain logistics is analyzed and amended; A mathematical model with mixing time window is built to balance the customers' service request with importance level; To minimize the total cost, a mathematical model which uses a factor to make balance between the stability of customer demand fluctuation and the cost increase in the assignment phase is established. Based on MATLAB software, the optical solution is found with adaptive genetic algorithm by taking the background of a distribution center to simulate and analyze.
Flight Support Service Time Estimation Of Hub Airport, Zhiwei Xing, Yunxiao Tang
Flight Support Service Time Estimation Of Hub Airport, Zhiwei Xing, Yunxiao Tang
Journal of System Simulation
Abstract: For the convenience of airport to publish the accurate information about flight status to passengers in time, estimating the service time of airport flight support is needed. Because the flight support service is a mixed procedure of job shop and fixed site, and has characteristics of time window constrains and resource demand difference, a model of flight support service procedure based on vehicle routing problem with time windows (VRPTW) was built. For the strong NP nature of vehicle routing problems, a two phase hybrid heuristic algorithm based on greedy algorithm and tabu search was proposed. It was applied to …