Vedriš, Matija (2016) Određivanje elastičnih parametara materijala gumenog elementa rastojnika-prigušivača. = Determining of spacer-damper rubber element elastic material parameters. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Wolf, Hinko.
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Vedris_2016_diplomski.pdf - Published Version Jezik dokumenta:Croatian Download (11MB) | Preview |
Abstract (Croatian)
Tema diplomskog rada je analiza gumenog elementa rastojnika-prigušivača pomoću metode konačnih elemenata, u svrhu dobivanja elastičnih parametara materijala gumenog elementa. U radu je opisana pojava aeolskih vibracija vodiča dalekovoda i osnovni tipovi rastojnika-prigušivača. Definirani su tipovi strukturne nelinearnosti (geometrijska, materijalna, nelinearnost uslijed kontakta). Prikazan je razvoj kontaktne mehanike, opisane su vrste kontakata i objašnjene postavke za definiranje kontakta u programskom paketu Abaqus. Objašnjene su geometrijska i materijalna nelinearnost te opisane specifičnosti jednadžbi koje se koriste u analizi hiperelastičnih materijala (gume) Za svaki tip nelinearnosti verificirani su konačni elementi usporedbom numeričkih rješenja s referentnim rješenjima. U nastavku su prikazani rezultati eksperimenta izvršenog na gumenom elementu. Napravljen je nelinearni numerički model u programskom paketu Abaqus te je opisan tijek izrade modela. Preklapanjem rezultata numeričke analize i eksperimenta dobiveni su elastični parametri materijala gumenog elementa rastojnika-prigušivača.
Abstract
The subject of this thesis is the analysis of the spacer-damper rubber element using the finite element method, in order to determine the rubber element elastic material parameters. The thesis describes the phenomenon of the power line aeolian vibration and basic types of spacer-dampers. Types of structural nonlinearity (geometric, material, nonlinearity due to contact) are defined through thesis. In thesis, the development of contact mechanics is shown, the types of contacts are described and the settings to define the contact in software program Abaqus are explained. The geometric and material nonlinearity are explained and the specifics of the equations used in the analysis of hyperelastic materials (rubber) are described. Each type of nonlinearity finite elements is verified by comparing the numerical and reference results. At the end of the thesis, the results of experiments performed on the rubber element are shown. The making of nonlinear numerical model has been described and then calculated in software program Abaqus. Elastic material parameters of the spacer-damper rubber element where determined through comparison of the numerical analysis and experimental results.
| Item Type: | Thesis (Master's thesis (Bologna)) |
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| Uncontrolled Keywords: | aeolske vibracije; rastojnik-prigušivač; guma; nelinearna analiza; hiperelastičnost; kontakt; Abaqus |
| Keywords (Croatian): | aeolian vibrations; spacer-damper; rubber; nonlinear analysis; hyperelasticity; contact; Abaqus |
| Subjects: | TECHNICAL SCIENCE > Mechanical Engineering |
| Divisions: | 200 Department of Engineering Mechanics > 230 Chair of Mechanical Systems Dynamics |
| Date Deposited: | 07 Jul 2016 10:00 |
| Last Modified: | 27 Mar 2020 15:02 |
| URI: | http://repozitorij.fsb.hr/id/eprint/6210 |
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