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Implementation of gradient methods for optimization of underage costs in aviation industry
(naslov ne postoji na srpskom)
Univerzitet u Prištini sa privremenim sedištem u Kosovskoj Mitrovici, Prirodno-matematički fakultet

e-adresanatasa.kontrec@pr.ac.rs
Ključne reči: cost optimization; gradient methods; spare parts
Sažetak
(ne postoji na srpskom)
Underage costs are not easily quantifiable in spare parts management. These costs occur when a spare part is required and none are available in inventory. This paper provides another approach to underage cost optimization for subassemblies and assemblies in aviation industry. The quantity of spare parts is determined by using a method for airplane spare parts forecasting based on Rayleigh's model. Based on that, the underage cost per unit is determined by using the Newsvendor model. Then, by implementing a transformed accelerated double-step size gradient method, the underage costs for spare sub-assemblies and assemblies in airline industry are optimized.
Reference
Andrei, N. (2006) An acceleration of gradient descent algorithm with backtracking for unconstrained optimization. Numerical Algorithms, 42(1): 63
Hill, A.V. (2011) The Newsvendor Problem. Clamshell Beach Press
Kontrec, N.Z., Milovanović, G.V., Panić, S.R., Milošević, H. (2015) A Reliability-Based Approach to Nonrepairable Spare Part Forecasting in Aircraft Maintenance System. Mathematical Problems in Engineering, 2015: 1-7
Petrović, M.J., Stanimirović, P.S. (2014) Accelerated Double Direction Method for Solving Unconstrained Optimization Problems. Mathematical Problems in Engineering, 2014: 1-8
Petrović, M.J. (2015) An Accelerated Double Step Size model in unconstrained optimization. Applied Mathematics and Computation, 250: 309-319
Stanimirović, P.S., Miladinović, M.B. (2009) Accelerated gradient descent methods with line search. Numerical Algorithms, 54(4): 503-520
Stanimirović, P.S., Milovanović, G.V., Petrović, M.J., Kontrec, N.Z. (2015) A Transformation of Accelerated Double Step Size Method for Unconstrained Optimization. Mathematical Problems in Engineering, 2015: 1-8
Tian, Z., Wu, B., Chen, M. (2013) Condition-based maintenance optimization considering improving prediction accuracy. Journal of the Operational Research Society, 65(9): 1412-1422
Wu, B., Tian, Z., Chen, M. (2012) Condition-based Maintenance Optimization Using Neural Network-based Health Condition Prediction. Quality and Reliability Engineering International, 29(8): 1151-1163
 

O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/univtho6-10134
objavljen u SCIndeksu: 01.09.2016.
metod recenzije: dvostruko anoniman
Creative Commons License 4.0

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