Research On The Inventory Of Emergency Spare Parts For Large-scale Service System Under Combination Of Routine And Emergency

Large-scale Service enterprise, such as Grid、transport and communicate are relatedwith People’s livelihood, the normal operation of these enterprise deeply relies on theoperation capacity of facilities and equipment. The facilities and equipment ofLarge-scale Service enterprise are installed in the outdoor, which is vulnerability to theemergencies, such as natural disasters. So the Large-scale Service enterprise has to storelarge scale emergency spare parts to respond to emergencies, which results in the highstock cost. This paper researches on the stock management and its model of emergencyspare parts in Large-scale Service enterprise.Firstly, the characteristic that the emergency spare parts can be replaced by the dailyspare parts is analyzed, based on that, a management frame of emergency spare parts inLarge-scale Service system under combination of routine and emergency is established,and the management subject management subject, goal, operation process and technologysupport are stated detailed. Finally, the management process is deeply analyzed.Secondly, the stock management methods of emergency spare parts in Large-scaleService enterprise under combination of routine and emergency is analyzed. The firstmethod is category management, in which, the classification index of emergency androutine spare parts, and the type that can be used in the alternative strategies is determined.The second method is demand forecast management, in which, the statistical data and theextent of damage of facilities and equipment by the emergencies is analyzed. The thirdmethod is stock model.Finally, based on the characteristic that the emergency spare parts can be replaced bythe daily spare parts, the minimum expected loss model of spare parts under twostrategies is proposed, and the optimal order quantity of the two kinds of spare parts arefound, and an example is given.