magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Gregor Koren (Author), Gregor Čepon (Mentor), Miha Boltežar (Co-mentor)

Abstract

Cilj naloge je standardizacija postopka numeričnega modeliranja zaganjalnika za korektno napoved njegovih modalnih parametrov. Na osnovi izmerjenih lastnih frekvenc in lastnih oblik enega tipa zaganjalnika smo pripravili numerični model in izvedli njegovo končno verifikacijo. Numerični model je potrebno poenostaviti do te mere, da še vedno odraža realno stanje zaganjalnika ob meritvah, vendar je še vedno obvladljiv v smislu sistemskih resursov in računskih časov. Postopek numerične karakterizacije modalnih parametrov smo nato ponovili še za nekaj drugih dizajnov in s tem izvedli njegovo validacijo. Na osnovi pridobljenega znanja in izkušenj je z določeno mero zaupanja možna napoved modalnih parametrov že v fazi načrtovanja zaganjalnika.

Keywords

magistrske naloge;modalna analiza;lastne frekvence;poenostavitev;validacija;standardizacija;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [G. Koren]
UDC: 62-57:621.3:519.61(043.2)
COBISS: 28124931 Link will open in a new window
Views: 716
Downloads: 130
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Other data

Secondary language: English
Secondary title: Standardization of the process of numerical estimation of the modal parameters of the starter motor
Secondary abstract: Goal of this assignment was standardization of the process of numerical modelling of the starter motor for the correct prediction of its modal parameters. Based on the measured natural frequencies and natural shapes of an individual starter motor, numerical model was prepared and its final validation was performed. The numerical model needs to be simplified to the extent that it still represents actual conditions on starter motor in the measurements, but is still manageable in terms of the system resources and computational times. The process of numerical modelling for the correct prediction of the modal parameters was then repeated for a few different designs of the starter motors, so the procedure was validated. Based on the acquired knowledge and experience, it is possible to predict, the first few modal parameters, already in the development phase.
Secondary keywords: master thesis;modal analysis;natural frequencies;mode shapes;simplification;validation;standardization;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXII, 60 str.
ID: 12014877
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