Spares demand combined forecasting based on grey model and exponential smoothing

According to the problem that the application and order of Spares is not reasonable, propose to make the spares demand forecasting based on the combined forecasting method, comprehensively utilizing the grey model, linear exponential smoothing, secondary exponential smoothing and cubic exponential smoothing to optimize the results of these methods, solved it by the nonlinear programming method. The prediction results show that the model predicts accurately, with high utility and promotion.