Proračun čvrstoće vertikalnog silosa za žito

undergraduate thesis

• Title (english): Strength calculation of grain storage silos
• Author: Toni Perčinlić
• Mentor: Ivica Skozrit (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2018-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Glavni cilj ovoga rada je provesti numerički proračun vertikalnog silosa za žito koji je svojim dimenzijama i konstrukcijom vrlo sličan realnom silosu. U prvom poglavlju pojašnjavaju se silosi i procesi koji se odvijaju u silosima te se opisuje problem kojega je potrebno riješiti. Prikazan je način na koji su se odredile dimenzije silosa s obzirom na način protoka materijala pri ispuštanju iz silosa. Zatim se objašnjava metoda konačnih elemenata te se govori o elementima koji su se koristili u analizama ovoga rada. Prikazani su verifikacijski primjeri koji su poslužili kao jednostavniji primjeri za rješavanje problematike silosa kako bi se utvrdila ispravnost elemenata potrebnih za analizu samoga silosa. U četvrtom poglavlju, proveden je analitički proračun pojednostavljenog silosa te su rezultati uspoređeni s rezultatima koji su se dobili numeričkim putem. Na kraju se provodi analiza silosa s konstrukcijom koja je bliska realnoj te se daju rezultati analize i uspoređuju sa rezultatima koji su se dobili kod pojednostavljenog silosa.

Abstract (english)

The main goal of this thesis is to carry out a numerical calculation of the vertical grain storage silo, which is, by its dimensions and construction, close to a real silo. In the first chapter, silos and processes that take place in silos are explained as well as the problem that needs to be solved. The method by which the silo dimensions were determined, with respect to the manner of material flow during silo discharge, is shown. In addition, the finite element method as well as the elements that were used in analysis of this thesis are explained. Verification examples that were used as simple examples for silo problematics solving are shown in order to determine correctness of the elements required for silo analysis. In the fourth chapter, an analytical calculation of the simplified silo was performed and the results were compared with the results obtained by numerical method. Finally, an analysis of the silo with construction similar to the real silo is performed and the results of the analysis, as well as the results comparison with the simplified silo, are shown.

• Keywords: vertikalni silos; metoda konačnih elemenata; žitarice; Abaqus
• Keywords (english): vertical silo; Finite Element Method; cereals; Abaqus
• Language: croatian
• URN:NBN: urn:nbn:hr:235:652315
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 23:01:46