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Development of method for assessing the quality of simulations of dynamic behavior of railway vehicles

dc.contributor.advisorLučanin, Vojkan
dc.contributor.otherDemić, Miroslav
dc.contributor.otherRusov, Srđan
dc.contributor.otherPetrović, Dragan
dc.contributor.otherŠoškić, Zlatan
dc.creatorBogojević, Nebojša M.
dc.date.accessioned2016-01-05T13:08:06Z
dc.date.available2016-01-05T13:08:06Z
dc.date.issued2015-05-04
dc.identifier.urihttp://eteze.kg.ac.rs/application/showtheses?thesesId=1812
dc.identifier.urihttps://fedorakg.kg.ac.rs/fedora/get/o:469/bdef:Content/download
dc.identifier.urihttp://nardus.mpn.gov.rs/123456789/3644
dc.descriptionEksperimentalna ispitivanja železničkih vozila predstavljaju najpouzdaniji način za utvrđivanje njihovih svojstava i presudni kriterijum za odobrenje njihove eksploatacije. Međutim, eksperimentalna ispitivanja su obimna, dugotrajna i skupa, pa su alternativni metodi, koji se koriste tokom projektovanja vozila, od najvećeg interesa. U tom cilju se razvijaju numeričke simulacije kretanja železničkih vozila, koje na osnovu matematičkog modela vozila i koloseka omogućavaju izračunavanja dinamičkih veličina u vremenskom i frekventnom domenu. Cilj ovog istraživanja je definisanje metodologije za validaciju modela dinamičkog ponašanja železničkog vozila. Pridržavajući se preporuke trenutno važećih standarda za eksperimentalna ispitivanja dinamičkog ponašanja železničkog vozila (UIC 518 i EN14363), a na osnovu dosadašnjih istraživanja verifikacije i validacije modela železničkih vozila i numeričkih modela uopšte, predložena je nova metrika za ocenu validnosti numeričkog modela železničkog vozila. Predložena validaciona metrika ocenu o slaganju rezultata dobijenih simulacijom i eksperimentalnim ispitivanjem formira na osnovu poređenja kumulativnih funkcija verovatnoća izabranih veličina za poređenje. U okviru disertacije definisana je validaciona hijerarhija, validaciona metrika, veličine za poređenje i granične vrednosti validacione ocene za prihvatanje validnosti numeričkog modela. Predložena metodologija validacije primenjena je na model železničkog vozila za prevoz rude gvožđa tipa „Fanoo 040“. Rezultati validacije modela dobijeni metodologijom predloženom u ovoj disertaciji dati su uporedo rezultatima dobijenim metodologijom validacije predložene u okviru projekta “DYNOTrain”. Novopredložena validaciona metrika omogućava da se izvrši objektivna ocena slaganja rezultata simulacije i eksperimenta za svaku od izabranih veličina za poređenje. Analizom dobijenih rezultata pokazano je da novopredložena metodologija validacije postavlja strožije uslove validacije u odnosu na metodologiju validacije prikazane u okviru projekta “DYNOTrain”. Validacija modela izvršena korišćenjem novopredložene metodologije daje mogućnost da se smanji obim eksperimentalnih ispitivanja.sr
dc.descriptionExperimental investigations of railway vehicles represent the most reliable way to determine their properties and decisive criterion for the approval of their exploitation. However, experimental tests are extensive, time-consuming and expensive, so alternative methods, which are used in the design of vehicles, are of the greatest interest. With this goal are developed numerical simulations of the dynamic behavior of railway vehicles that, on the basis of mathematical models, allow calculation of dynamic values in the time and frequency domain. The aim of this study is to define a methodology for the validation of models od railway vehicles dynamics. By adhering to the recommendations of actual standards for experimental investigation of the dynamic behavior of railway vehicles (UIC 518 and EN14363), and based on previous research of verification and validation of railway vehicles model and numerical models in general, a new validation metrics is proposed for assessment of the numerical models of railway vehicles. The proposed validation metrics assesses the agreement between the results obtained by simulation and experimental testing on the basis of comparison between cumulative probability functions of the assessment quantities. In this dissertation is defined the validation hierarchy, validation metrics, assesment quantities and validation limits for estimation of acceptance of a numerical model of a railway vehicle. The proposed methodology was applied to the validation of a model of railway wagon of type "Fanno 040", which is used for transport of iron ore. The results obtained with the methodology for model validation proposed in this thesis are compared to the results obtained by the methodology proposed in the international project "DYNOTrain". The newly proposed validation metrics enabled an objective assessment of the agreement between simulation and experimental results for each of the selected assesment quantities. The obtained results showed that the newly proposed methodology for validation of model of railway vehicles represents a more severe estimation of agreement between the simulation and experimental results than the metrics proposed in the project "DYNOTrain". Model validation performed using the newly proposed methodology provides an opportunity for reduction of the volume of expensive experimental tests.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Крагујевцу, Факултет за машинство и грађевинарство, Краљевоsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37020/RS//
dc.rightsAutorstvo-Nekomercijalno 3.0 Srbija (CC BY-NC 3.0)
dc.sourceУниверзитет у Крагујевцуsr
dc.subjectvalidacijasr
dc.subjectvalidationen
dc.subjectmodeliranjesr
dc.subjectsimulacijasr
dc.subjecteksperimentalno ispitivanjesr
dc.subjectmodelingen
dc.subjectsimulationen
dc.subjectexperimental investigationen
dc.titleRazvoj metode za ocenu kvaliteta simulacije dinamičkog ponašanja železničkih vozilasr
dc.titleDevelopment of method for assessing the quality of simulations of dynamic behavior of railway vehiclesen
dc.typePhD thesis
dcterms.abstractЛучанин, Војкан; Демић, Мирослав; Петровић, Драган; Шошкић, Златан; Русов, Срђан; Богојевић, Небојша М.; Развој методе за оцену квалитета симулације динамичког понашања железничких возила; Развој методе за оцену квалитета симулације динамичког понашања железничких возила;


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