Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/157720 
Erscheinungsjahr: 
2015
Quellenangabe: 
[Journal:] Logistics Research [ISSN:] 1865-0368 [Volume:] 8 [Issue:] 1 [Publisher:] Springer [Place:] Heidelberg [Year:] 2015 [Pages:] 1-8
Verlag: 
Springer, Heidelberg
Zusammenfassung: 
For safe and reliable machine operation, maintenance, repair and overhaul (MRO) activities are required. Spare parts demand forecasting and inventory planning, which is an important part of MRO activities, must be accurate to avoid costs because of surplus spare parts or machine downtimes. The restriction of reduced accessibility to wind turbines during the winter months also has to be taken into account when planning maintenance activities and spare part inventories for wind farms. The presented model provides the most economic stock quantity under given environmental conditions. It is based on the proportional hazards model, which is extended to calculate the remaining useful component life time and derive required spare parts inventory levels. The presented model is validated, using condition monitoring data and environmental data of an onshore wind farm. Comparison of the spare part inventory prediction to wind farm's failure data proves the model's accuracy. Parameter analyses show that the model can be applied for spare parts inventory planning under consideration of environmental conditions.
Schlagwörter: 
Proportional hazards model
Spare part
Inventory planning
MRO
Wind turbine
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