Rolling Horizon Procedures for the Facilities in Series Inventory Model with Nested Schedules

Article Abstract:

Rolling horizon procedures are often used to produce multiperiod forecasts. They require forming a rolling schedule by solving a finite horizon multiperiod problem. Only the first period's decision is implemented. Rolling horizon procedures for the facilities in series inventory model with nested schedules are developed. A simple case is considered. Holding costs are linear and production cost consists of setup cost and a constant marginal cost of product. These costs are stationary in time. A flow chart of the computation is included. Numerical results are presented in tables.

Business planning, Forecasting, Production, Scientific Research, Scheduling Applications

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A Multi-Item Maintenance Center Inventory Model for Low- Demand Reparable Items

Article Abstract:

Many complex machines are designed to continue to function after some components have failed. They are often scheduled for regular maintenance to replace all failed parts. A model to determine the optimal repairable parts inventory is discussed. Exact solutions may be obtained using dynamic programming. Approximate solutions, with error bounds, may be found using marginal analysis. Tables showing computational results are included.

Reliability (Trustworthiness), Dynamic programming, Maintenance, Repair, Reliability, Service Centers, Optimization, Component Reliability

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Periodic Review Inventory Systems with Continuous Demand and Discrete Order Sizes

Article Abstract:

A stochastic, single product inventory model is considered. The inventory has periodic reviews and has non-negative setup costs. Demands are independent random variables with known distribution functions. A bound for the increase in costs resulting from restricting orders to be integers is obtained. The suboptimal policy whose performance is within the bound is developed.

Warehousing, Stochastic Model

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