Joint Inventory Policy Under Fuzzy Environment

Enterprise face to improve product quality, reduce cost and shorten delivery lead time every moment, at the same time, the pressure due to market demand uncertainty, for a single node in the fierce competition in the enterprise wants to survive in the market environment, with its upstream and downstream to the enterprise established the good partnership and credit guarantee. Integrated inventory management mode is single node of the development of inventory management mode.Based on fuzzy theory, studies the fuzzy environment short excluding defective products containing defects and the different product of fuzzy inventory strategy model combined transportation. For producers and retailers will be a community of interests, discusses how to reduce the interest of the integrated inventory cost. The main research contents and innovation summarized as follows:1) Considering the integrated inventory strategy in practical inventory management role. Study the equal batch transportation integrated inventory strategy. Established determine and fuzzy equal batch models and shortage are allowed in two models. Using signed distance and simple algebraic approach method to determine the algebraic to minimize the total cost of inventory strategy. Numerical examples were provided to examine the impact of fuzziness of demand, shortage cost and holding costs for the optimal strategy.2) Considering the joint inventory strategy is not necessarily medium mass transport strategy that the optimal strategy, Study the mass batch transportation integrated inventory strategy. Established determine and fuzzy mass batch models and shortage are allowed in two models. Using signed distance and simple algebraic approach method to determine the algebraic to minimize the total cost of inventory strategy. Numerical examples were provided to examine the impact of fuzziness of demand, shortage cost and holding costs for the optimal strategy, and at the same time analysis the impact of the storage cost of retailers and manufacturers affect how to choose equal and maximum strategy.3) Considering imperfect production system and damage or breakage in transit, the lot sizes ordered may contain some defective items. Study the equal and mass transportation integrated inventory strategy, Established respectively determine and fuzzy models with imperfect items in this two strategies and shortage are allowed. Using signed distance and simple algebraic approach method to determine the algebraic to minimize the total cost of inventory strategy. Numerical examples were provided to examine the impact of fuzziness of demand, shortage cost and holding costs for the optimal strategy, and at the same time analysis the impact of the storage cost of retailers and manufacturers affect how to choose equal and maximum strategy.