Konceptualni projekt solarne bespilotne letjelice beskonačnog trajanja leta

Dorocić, Damjan (2015) Konceptualni projekt solarne bespilotne letjelice beskonačnog trajanja leta. = Conceptual Design of the Solar Unmanned Vehicle with Unlimited Endurance. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Smojver, Ivica.

[img]
Preview
Text
Dorocić_2015_diplomski.pdf - Published Version Jezik dokumenta:Croatian

Download (3MB) | Preview

Abstract (Croatian)

U uvodnom dijelu Diplomskog rada izvršen je pregled i opisan rad fotonaponskih ćelija, baterija i elektroničkih uređaja potrebnih za let zrakoplova prema unaprijed zadanim zahtjevima. S obzirom da se radi o maloj bespilotnoj letjelici, odabrani su uređaji što manje mase i potrošnje električne energije. Drugi dio rada sastoji se od niza iteracija u kojima su parametri od početnih pretpostavki konvergirali prema konačnoj konfiguraciji rješavanjem uočenih nedostataka. Najkompleksniji dio projekta je procjena mogućnosti konstruiranja letjelice na solarni pogon neograničenog trajanja leta uzimajući u obzir geografsko područje Republike Hrvatske. Osim ravnoteže između težine zrakoplova i ostvarenog uzgona, provedena je i analiza potrošene električne energije za rad pogonskog sustava i elektroničkih uređaja, te dobivene energije od Sunca pomoću fotonaponskih ćelija. Za ostvarivanje zahtjeva beskonačnog trajanja leta odabrana je konstrukcija s dovoljnim brojem fotonaponskih ćelija i baterija tako da je dobivena energija od Sunca veća od ukupno potrošene energije za let zrakoplova, te su dimenzionirani osnovni konstruktivni elementi zrakoplova. Takav zrakoplov mogao bi letjeti i po danu i po noći bez slijetanja. U radu je korišten program XFLR5 za aerodinamičku analizu krila i konstruiranje krila, trupa i repa, te konceptualne konfiguracije cijelog zrakoplova. U posljednjem dijelu rada provedena je optimizacija visine leta u ovisnosti o zahtjevima odabrane opreme i trajanja leta, a dobiveni rezultati obrađeni su u programskom paketu Microsoft Excel.

Abstract

In the introductory part of the Master degree thesis the work of photovoltaic cells, batteries and electronic devices needed to fly the aircraft at the predetermined requirements were reviewed and described. Since it is a small, unmanned aerial vehicle, devices with lower mass and power consumption are selected. The second part consists of series of iterations in which the parameters of the initial assumptions converged towards the final configuration by resolving identified deficiencies. The most complex part of the project was to assess the possibilities for designing a solar-powered aircraft with unlimited endurance taking into account the geographic area of the Republic of Croatia. In addition to the balance between the weight and lift of the aircraft, an analysis of power consumed to operate the propulsion system and electronic devices, and the energy obtained from the sun using photovoltaic cells, was carried out. To fulfill the requirements of the unlimited endurance, the design with a sufficient number of photovoltaic cells and batteries was selected so that the amount of energy received from the sun is greater than the total energy consumed to fly the aicraft. Additionally the basic structural elements of the aircraft were dimensioned. Such aircraft could fly both day and night without landing. In the thesis, XFLR5 programme for aerodynamic analysis and design of wings, fuselage, tail and conceptual configuration of the entire aircraft was used. In the last part optimization of altitude depending on the requirements of the selected equipment and flight duration was carried out, and the results were processed in the software package Microsoft Excel.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: bespilotna letjelica; beskonačno trajanje leta;fotonaponske ćelije; baterije; solarna energija; letjelica na solarni pogon
Keywords (Croatian): unmanned aerial vehicle; unlimited endurance; photovoltaic cells; batteries; solar energy; solar powered aircraft
Subjects: TECHNICAL SCIENCE > Aviation, rocket and space technology
Divisions: 1300 Department of Aeronautical Engineering > 1310 Chair of Aerodynamics
Date Deposited: 16 Jul 2015 11:06
Last Modified: 16 Oct 2015 12:41
URI: http://repozitorij.fsb.hr/id/eprint/4562

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

Nema podataka za dohvacanje citata