prikaz prve stranice dokumenta Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena
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master's thesis
Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena
diplomski rad
Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2012. urn:nbn:hr:169:090385
Čop, Tomislav
University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
Department of Mining and Geotechnical Engineering

Institutional repository: Faculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb

Cite this document

Čop, T. (2012). Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad (Master's thesis). Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:090385

Čop, Tomislav. "Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2012. https://urn.nsk.hr/urn:nbn:hr:169:090385

Čop, Tomislav. "Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2012. https://urn.nsk.hr/urn:nbn:hr:169:090385

Čop, T. (2012). 'Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad', Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:169:090385

Čop T. Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering; 2012 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:169:090385

T. Čop, "Utjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad", Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:169:090385

Metadata
TitleUtjecaj kuta zaoštrenja vrha radnog alata hidrauličnog čekića na energetsku učinkovitost razrušavanja stijena : diplomski rad
Title (english)Influence of the hydraulic hammer tool tip sharpening angle on the energy efficiency of rock fragmentation : master's thesis
AuthorTomislav Čop
MentorTrpimir Kujundžić (mentor)
MentorDalibor Kuhinek (pomoć pri izradi, neposredni voditelj)
Committee memberTrpimir Kujundžić (predsjednik povjerenstva)
Committee memberPetar Hrženjak (član povjerenstva)
Committee memberŽelimir Veinović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Mining and Geotechnical Engineering)
Zagreb
Defense date and country2012-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mining, Petroleum and Geology Engineering
Mining
Abstract
Kako bi se utvrdila veza između kuta zaoštrenja vrha radnog alata hidrauličnog čekića i učinkovitosti razrušavanja stijena sastavljena je mjerna aparatura za laboratorijska ispitivanja. Pripremljena su četiri alata sa različitim kutevima zaoštrenja vrha kojima se udaralo na uzorke stijena valjkastog oblika. Pritom su pomoću mjernog računalnog sustava bilježeni signali iz elektrootpornih mjernih traka koje su bile postavljene na pojedini alat. Rezultati mjerenja su prikazani na grafovima te su detaljno analizirani. Analiza rezultata je pokazala da postoje evidentni trendovi zavisnosti između oblika radnog alata i uĉinkovitosti razrušavanja ispitivanih uzoraka. Dokazana je hipoteza rada, to jest ustanovljena je povezanost između kuta zaoštrenja radnog alata i energetske učinkovitosti pri mehaničkom razrušavanju stijena. Uz to, predložene su i smjernice za daljnja istraživanja uz doradu nekih nedostataka mjerne aparature.
Abstract (english)
Abstract: In order to determine the relation between the hydraulic hammer tool tip angle and efficiency of rock fragmentation, the measuring apparatus for laboratory testing was constructed. Four tools with various sharpening angles were prepared. These tools were used for impacting cylindrically-shaped rock samples. The signals from strain gauges, glued on individual tools, were recorded using computer measurement system. Measured data is shown in diagrams and analyzed in details. The data analysis showed evident existence of dependency trends between tool shape and efficiency of tested samples fragmentation. The paper hypothesis was proven i.e. the connection between the tool tip sharpening angle and energy efficiency of mechanical rock fragmentation was established. Apart from the above, guidelines for further testing were established along with the improvement of certain measuring apparatus drawbacks.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:169:090385
Study programmeTitle: Mining Engineering; specializations in: Mining engineering, Geotechnical engineering, Waste treatment and disposal
Course: Geotechnical engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka rudarstva (magistar/magistra inženjer/inženjerka rudarstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2016-03-15 14:19:41