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Development of maintenance model choice method in function of increased aircraft fleet availability

dc.contributor.advisorVasov, Ljubiša
dc.contributor.otherStojiljković, Branimir
dc.contributor.otherVlačić, Slaviša
dc.creatorKnežević, Aleksandar Z.
dc.date.accessioned2019-01-31T12:46:03Z
dc.date.available2019-01-31T12:46:03Z
dc.date.available2020-07-03T09:13:19Z
dc.date.issued2018-06-12
dc.identifier.urihttps://nardus.mpn.gov.rs/handle/123456789/10716
dc.identifier.urihttp://eteze.bg.ac.rs/application/showtheses?thesesId=6576
dc.identifier.urihttps://fedorabg.bg.ac.rs/fedora/get/o:19352/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=512518058
dc.description.abstractPredmet istraživanja doktorske disertacije jeste izbor modela neperfektnog održavanja koji je moguće primeniti na održavanje flote vazduhoplova u okviru trenutne organizacije održavanja a na osnovu parametara koji se prate u toku eksploatacije. Pregled ponuđenih modela održavanja i klasifikacija prema politikama održavanja poslužio je za izbor modela koji za ulazne parametre raspoloživosti uzima norme koje se prate pri održavanju flote vazduhoplova. Na osnovu predloženog logičkog dijagrama odlučivanja problem je rešen odabirom konkretnog modela neperfektnog održavanja. Primenom izabrane metode neperfektnog održavanja na numeričkom modelu dobijene su vrednosti za intervale između preventivnih održavanja kao i maksimalni broj uzastopnih korektivnih popravki za svaki od podsistema. Primena preporučenih normi na numeričkom modelu dala je razliku u trenutnoj i ostvarenoj raspoloživosti za svaki od podsistema. Razvijen je simulacioni model procesa eksploatacije flote aviona G-4 za karakterističan zadatak u školskoj nameni. Postavka rasporeda entiteta i logika rada simulacije u najvećoj mogućoj meri slede zadatu organizaciju izvršenja zadataka i održavanja flote vazduhoplova. Scenariji u simulaciji eksploatacije flote vazduhoplova formirani su oko primenjenog koncepta održavanja. Referentni scenario predstavlja aktuelni koncept održavanja prema dostignutim resursima. Eksperimentalni scenario predstavlja upotrebu koncepta baziranog na primeni izabrane metode neperfektnog održavanja. Varijacijom normi održavanja u aktuelnom konceptu registrovane su promene statističkih pokazatelja Dostignute raspoloživosti i Dnevne ispravnosti. Koncept neperfektnog održavanja u eksperimentalnom scenariju uz ograničenja broja uzastopnih popravki potvrdio je razlike u promeni vrednosti statističkih parametara u odnosu na referentni scenario.sr
dc.description.abstractThe subject of doctoral dissertation research is the choice of a of imperfect maintenance model that can be applied to maintaining the aircraft fleet within the current maintenance organization based on parameters that are being monitored during exploitation. An overview of the offered maintenance models and classifications according to maintenance policies was used to select models that for the input parameters of availability take the norms that accompany the maintenance of the aircraft fleet. Based on the proposed logical decision diagram, the problem is solved by selecting a concrete model of imperfect maintenance. Using the chosen method of imperfect maintenance on the numerical model, the values for the intervals between preventive maintenance and the maximum number of consecutive corrective corrections for each of the subsystems were obtained. The application of the recommended norms on the numerical model gave a difference in the current and realized availability for each of the subsystems. A simulation model of the G-4 fleet exploitation process for a characteristic task in the training purpose was developed. The layout of the entities and the simulation work logic are as closely as possible to the assigned organization of tasks and maintenance of the fleet of aircraft. Scenarios in the simulations of the exploitation of the fleet of aircraft were formed around the applied maintenance concept. The reference scenario represents the current maintenance concept (hard time). The experimental scenario represents the use of a concept based on the application of the chosen method of imperfect maintenance. By varying the different parameters in the current concept, changes have been registered through the indicators of Availability and Daily correctness. The concept of imperfect maintenance in the experimental scenario with the limit of the number of consecutive corrections confirmed the differences in the movement of the values of the statistical parameters relative to the reference one.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Београду, Саобраћајни факултетsr
dc.rightsopenAccessen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/
dc.sourceУниверзитет у Београдуsr
dc.subjectraspoloživostsr
dc.subjectavailabilityen
dc.subjectpouzdanostsr
dc.subjectneperfektno održavanjesr
dc.subjectvazduhoplovsr
dc.subjectispravnostsr
dc.subjectsimulacioni modelsr
dc.subjectreliabilityen
dc.subjectimperfect maintenanceen
dc.subjectaviationen
dc.subjectcorrectnessen
dc.subjectsimulation modelen
dc.titleRazvoj metode izbora modela održavanja u funkciji povećanja raspoloživosti flote vazduhoplovasr
dc.title.alternativeDevelopment of maintenance model choice method in function of increased aircraft fleet availabilityen
dc.typedoctoralThesisen
dc.rights.licenseBY-NC-SA
dc.identifier.fulltexthttps://nardus.mpn.gov.rs/bitstream/id/15798/Disertacija.pdf
dc.identifier.fulltexthttps://nardus.mpn.gov.rs/bitstream/id/15799/IzvestajKomisije18934.pdf
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/15798/Disertacija.pdf
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/15799/IzvestajKomisije18934.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_nardus_10716


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