APPLICATION OF THE (R, S) MODEL WHEN PLANNING STOCKS IN AN INDUSTRIAL ENTERPRISE
Keywords:fully backordering, stocks, reserve, normal distribution
One of the current problems in the enterprise management system is the creation and replenishment of stocks, the organization of continuous monitoring and prompt supply of raw materials. Using mathematical models, you can solve the problem of forming the optimal production program of the enterprise, investing in production, as well as to carry out strategic planning of enterprise development. In each case, it is important to build a model that describes the system under study, and on its basis to find the optimal ratio between costs and benefits of the selected level of stocks and determine what size stocks are sufficient. Correct inventory management allows you to maintain the production process and meet the needs of consumers in a timely manner.
The purpose of this study is to build a model with a system with fully backordering, which is the optimal value of the stock level and the amount of average quarterly costs, which corresponds to the optimal value.
Research methods are based on a probabilistic model of management approach for the enterprise. The method of building a model of inventory management system with periodic inspections was used, which found the average values of the intensity of demand for raw materials, unit costs and the cost of order verification. Depending on the initial values of the parameters, the optimal reserve of the quarterly stock is calculated, which corresponds to the given demand intensity.
The study concludes on the value of the optimal level of stocks, as well as the average cost for the period corresponding to the regulatory level of stock.