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undergraduate thesis
Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice
Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences, 2018. urn:nbn:hr:119:097627
Matak, Leo
University of Zagreb
Faculty of Transport and Traffic Sciences
Division of Aeronautics
Department of Aeronautics

Institutional repository: Faculty of Transport and Traffic Sciences

Cite this document

Matak, L. (2018). Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences. Retrieved from https://urn.nsk.hr/urn:nbn:hr:119:097627

Matak, Leo. "Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice." Undergraduate thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, 2018. https://urn.nsk.hr/urn:nbn:hr:119:097627

Matak, Leo. "Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice." Undergraduate thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, 2018. https://urn.nsk.hr/urn:nbn:hr:119:097627

Matak, L. (2018). 'Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice', Undergraduate thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:119:097627

Matak L. Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences; 2018 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:119:097627

L. Matak, "Eksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice", Undergraduate thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:119:097627

Metadata
TitleEksperimentalno određivanje momenata tromosti višerotorske bespilotne letjelice
Title (english)Experimental Determination of Inertia Moments on a Rotary Wing Unmanned Aerial Vehicle
AuthorLeo Matak
MentorKarolina Krajček Nikolić (mentor)
Committee memberŽeljko Marušić (predsjednik povjerenstva)
Committee memberDavor Franjković (član povjerenstva)
Committee memberTomislav Radišić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Transport and Traffic Sciences
(Division of Aeronautics)
(Department of Aeronautics)
Zagreb
Defense date and country2018-09-17, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Traffic and Transport Technology
Air Traffic
Abstract
Momenti tromosti nekog tijela, primjerice letjelice, ključni su parametar njegove dinamike jer predstavljaju mjeru otpora rotacijskom gibanju. Što je letjelica tromija, teže će biti započeti, ali i zaustaviti njezinu rotaciju. U radu je prikazana metodologija teorijskog i eksperimentalnog određivanja vrijednosti momenata tromosti pravilnih geometrijskih tijela, te vrlo jednostavna metoda određivanja momenta tromosti nepravilnih tj., složenih predmeta na primjeru bespilotne letjelice s rotacionim krilom. Eksperimentalna metoda određivanja momenata tromosti tijela temelji se na principu bifilarnog njihala i mjerenju perioda njihanja. Za potvrdu ispravnosti postavki njihala najprije se testira podudaranje poznate vrijednosti gravitacijskog ubrzanja s dobivenom vrijednosti nakon uvrštavanja izmjerenog perioda. Sljedeći korak je eksperimentalno određivanje momenata tromosti geometrijski pravilnog tijela - drvenog kvadra poznatih dimenzija. Tek nakon potvrde da su metodom dovoljno točno određeni momenti tromosti drvenog kvadra, provodi se eksperimentalno određivanje momenata tromosti bespilotne letjelice s rotacionim krilom. Rezultati testiranja momenata tromosti bespilotne simetrične letjelice mase 292 g, pokazali su kako su momenti tromosti oko longitudinalne i poprečne osi gotovo identični, dok su najveće vrijednosti dobivene za moment tromosti oko z osi.
Abstract (english)
Moment of inertia of a specific body, say an aircraft, is a key parameter of its dynamics, because it represents the amount of resistance required to counteract angular motion. The more the aircraft is inert, the harder it is to start and to stop its rotation. This thesis shows the methodology of theoretical and experimental determination of moments of inertia for regular geometric bodys, and a fairly simple method used for irregular and complex bodys, such as a rotary wing unmanned aerial vehicle. The experimental method is based on a principle of a bifilar torsional pendulum and its measured swing periods. First, the known values of the gravitational acceleration and the measured values are compared, in order to confirm the accuracy of the pendulum. The next step is experimentally determining the moment of inertia for a regular geometric body, in this case a wooden cuboid. After confirming the method is accurate, using the wooden cuboid, it can be proceeded to determining the moment of inertia for a rotary wing unmanned aerial vehicle. The results of the experiment on a rotary wing unmanned aerial vehicle, with a mass of 292 g, showed that moments of inertia around longitudinal and lateral axis are almost identical, while the moment of inertia around the vertical z axis has the highest values.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:119:097627
Study programmeTitle: Aeronautics
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-11-22 11:19:51