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分析了客户需求为模糊数情形的开放式车辆路径问题,通过运用模糊可信性理论,建立模糊机会约束规划数学模型。运用随机模拟算法和改进差分进化算法求解了该复杂的不确定性问题,并通过数值实验检验了模型和算法的有效性。
The open vehicle routing problem with customer demand as fuzzy number is analyzed. By using the theory of fuzzy credibility, a mathematic model of fuzzy chance constrained programming is established. The stochastic simulation algorithm and the improved differential evolution algorithm are used to solve the complex problem of uncertainty. The validity of the model and the algorithm is verified by numerical experiments.