具有Weibull生存死亡特征的冷链品库存补货定价策略研究

发布时间：2018-06-19 08:24

本文选题：冷链品 + 生存死亡特征　；参考：《运筹与管理》2017年01期

【摘要】：建立了无限期内冷链品具有Weibull生存死亡特征、随机需求且受售价影响的库存补货定价模型,其中售价是连续变化的,需求率是售价的指数函数,变质率服从的三参数Weibull分布,提前期固定。系统以利润最大化为目标函数,在(r,Q)库存策略下,建立库存模型,采用直接法,对模型近似求解,得到最优补货定价策略。利用Matlab进行算例模拟和灵敏度分析发现:补货提前期和单位仓储成本对补货定价策略影响较大,二者增大会导致系统利润降低;单位处理成本的增加,在一定程度上使得系统降低最优补货量,使系统利润增加;保鲜期固定的前提下,受冷链品的流动环境因子和存储环境因子影响的变质率对补货定价策略影响较大,它的增大会使系统利润降低。这些发现能够帮助优化系统模型,对现实问题具有一定的指导意义。
[Abstract]:An inventory restocking pricing model with Weibull survival and death characteristics, random demand and influence of price is established. The price of cold chain is continuously changing, the demand rate is the exponential function of the selling price, and the Weibull distribution of three parameters for the deterioration rate clothing is obtained. The lead time is fixed. Taking the profit maximization as the objective function, the system establishes the inventory model under the inventory strategy of rr / Q, and adopts the direct method to approximate the solution to the model, and obtains the optimal replenishment pricing strategy. The simulation and sensitivity analysis with Matlab show that the replenishment lead time and the unit storage cost have a great influence on the replenishment pricing strategy, the increase of both will lead to the decrease of the system profit, the increase of the unit processing cost, and the increase of the unit processing cost. To a certain extent, it makes the system reduce the optimal replenishment quantity and increase the system profit. Under the premise of fixed shelf life, the deterioration rate affected by the flow environment factor and storage environment factor of the cold chain goods has a great influence on the replenishment pricing strategy. Its increase will reduce the profit of the system. These findings can help to optimize the system model and have certain guiding significance to practical problems.
【作者单位】：烟台大学数学与信息科学学院;烟台大学经济管理学院;
【基金】：国家自然科学基金资助项目(71372122) 山东省研究生教育创新计划资助项目(SDYY13060)
【分类号】：F274

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