黑料不打烊

Baigiamajame magistro darbe analizuojamas Lietuvos oro eismo valdymo 寞vyki懦 prane拧imo sistemos veiksmingumas. Pirmojoje darbo dalyje sistemingai ap啪velgiami aviacijos saugos konceptai bei ap啪velgiami naujausi metodai, taikomi 寞vyki懦 prane拧im懦 sistemose. Metodologijos skyriuje analizuojami esami bei galimi metodai 寞vyki懦 prane拧imo sistemos veiksmingumui gerinti Lietuvoje. Tyrimas atliekamas pasitelkiant 鈥濸ython鈥� programavimo kalb膮 bei transformacini懦 modeli懦 bibliotekas taikant ma拧ininio mokymosi metodus aviacijos incident懦 prane拧imams kategorizuoti. Atlikus tyrim膮, 寞vairi懦 ma拧ininio mokymosi modeli懦 na拧umas palyginamas pagal tikslum膮, precizi拧kum膮 bei F1 bal膮 ir suformuluojamos i拧vados d臈l efektyviausio modelio automatizuojant aviacijos incident懦 prane拧im懦 klasifikavim膮. Darb膮 sudaro 5 dalys: 寞vadas, literat奴ros analiz臈, metodologija, empirinis tyrimas ir i拧vados. Darbo apimtis 鈥�76 p. teksto be pried懦, 36 iliustracijos, 11 lenteli懦 ir 66 literat奴ros 拧altiniai.

The final master thesis analyses the effectiveness of the Lithuanian air traffic control event reporting system. The first part of the thesis provides a systematic overview of aviation safety concepts and an overview of the latest methods used in occurrence reporting systems. The methodology analyses existing and potential methods to improve the effectiveness of the occurrence reporting system in Lithuania. The research is carried out using the Python programming language and a library of transformational models, applying machine learning methods to categorise aviation incident reports. The study compares the performance of different machine learning models in terms of accuracy, precision and F1-score, and draws conclusions on the most effective model for automating the classification of aviation incident reports in Lithuanian language. The thesis consists of 5 parts: introduction, literature review, methodology, empirical study and conclusions. Thesis consists of 76 p. of text without appendixes, 36 pictures, 11 tables and 66 references.

Civilin臈s aviacijos triuk拧mas i拧lieka pagrindiniu i拧拧奴kiu, ribojan膷iu 拧ios industrijos augim膮. D臈l augan膷i懦 pasaulinio oro eismo sraut懦 triuk拧mo tar拧a tampa vis aktualesne problema. 艩iame tyrime kuriamas duomenimis pagr寞stas skryd啪i懦 tvarkara拧膷io optimizavimo modelis, siekiant suma啪inti nakties triuk拧mo lyg寞 Vilniaus oro uoste. Tyrimas vykdomas trimis etapais: pirmiausia ap啪velgiamos esamos triuk拧mo ma啪inimo strategijos ir tvarkara拧膷io optimizavimo priemoni懦 potencialas. Antrajame etape naudojama EUROCONTROL integruota orlaivi懦 triuk拧mo ir emisij懦 modeliavimo platforma, siekiant 寞vertinti triuk拧mo lyg寞 kiekvienai skryd啪io operacijai, atsi啪velgiant 寞 aktualias atmosferos s膮lygas. Galiausiai sukuriamas skryd啪i懦 tvarkara拧膷io optimizavimo modelis, atsi啪velgiant 寞 pagrindinius kintamuosius, apribojimus ir prielaidas, daran膷ius poveik寞 oro uosto triuk拧mui, o v臈liau 寞vertinamas jo veiksmingumas ir efektyvumas. Tyrimo rezultatai rodo, kad veiksmingam triuk拧mo valdymui b奴tinas kompleksinis po啪i奴ris, derinant operacinius pakeitimus su detaliu industrijos veiksni懦 supratimu. Darbo apimtis 鈥� 80 puslapi懦 teksto be pried懦, 26 iliustracijos, 20 lentel臈s, 70 bibliografini懦 拧altini懦.

Civil aviation noise remains a key challenge that limits the industry鈥檚 growth. With the rise in global air traffic, aviation noise pollution is becoming an increasingly pressing concern. This research develops a data-driven flight schedule optimization model to mitigate nighttime noise levels at Vilnius Airport. The research is conducted in three stages: first, existing noise reduction strategies and the potential of scheduling optimization tools are reviewed. Next, EUROCONTROL鈥檚 integrated aircraft noise and emissions modelling platform is used to assess noise levels for each flight operation under relevant atmospheric conditions. Finally, a flight schedule optimization model is developed by considering key variables, constraints, and assumptions affecting airport noise, followed by an evaluation of its performance and efficiency. The findings suggest that effective noise management requires a comprehensive approach, integrating operational adjustments with a detailed understanding of industry factors. Scope of the research 鈥� 80 pages of text excluding appendices, 26 illustrations, 20 tables, 70 bibliographic sources.

Baigiamajame magistro darbe nagrin臈jama keleivi懦 asmenini懦 elektronini懦 prietais懦 elektromagnetin臈 spinduliuot臈 ir jos galimas poveikis orlaivio sistemoms. Ap啪velgiamos bendros teorijos 啪inios apie elektromagnetines bangas, apsaugos nuo jos priemones, asmeninius elektroninius prietaisus, trikd啪ius, orlaivi懦 sistemas, kurios gali b奴ti paveiktos, aviacijos institucij懦 reguliacijos, analizuojami moksliniai tyrimai, kuriuose atliekami pana拧奴s tyrimai. Naudojantis elektromagnetini懦 lauk懦 matuokliu ir spektro analizatoriumi atliekami asmenini懦 elektronini懦 prietais懦 elektromagnetini懦 charakteristik懦 ir dominuojan膷i懦 da啪ni懦 matavimai. Atliekama duomen懦 analiz臈, kurios metu padarytos i拧vados panaudojamos atliekant skai膷iavimus su MATLAB programine 寞ranga. Sumodeliuota orlaivio A320-200 keleivi懦 kabina ir PIFA antenos, simuliuojami skirtingi scenarijai ir nubrai啪omi elektrinio lauko sklidimo ir prietais懦 s膮veikos grafikai. Atlikus asmenini懦 elektronini懦 prietais懦 elektromagnetin臈s spinduliuot臈s tyrim膮 pateikiamos baigiamojo darbo i拧vados ir si奴lymai. Darb膮 sudaro 6 dalys: 寞vadas, bendros teorijos ir kit懦 mokslini懦 tyrim懦 ap啪valga, tyrimo metodika, elektromagnetin臈s spinduliuot臈s tyrimas, i拧vados ir rekomendacijos, literat奴ros s膮ra拧as. Darbo apimtis 鈥� 99 p. teksto be pried懦, 47 iliustracijos, 9 lentel臈s, 62 bibliografiniai 拧altiniai. Atskirai pridedami darbo priedai.

This Master thesis investigates the electromagnetic radiation emitted by passengers鈥� personal electronic devices and its potential impact on aircraft systems. The study provides a theoretical overview of electromagnetic waves, protection measures against interference, personal electronic devices, electromagnetic interference, susceptible aircraft systems, aviation authority regulations and review of scientific research related to similar studies. Electromagnetic characteristics and dominant frequencies of personal electronic devices are measured using electromagnetic field meter and a spectrum analyzer. The collected data is analyzed, and the results are used for calculations performed in MATLAB software. A model of the AIRBUS A320-200 passenger cabin and PIFA antennas is created, simulating different scenarios and visualizing electric field propagation and device interaction. Based on the research findings, conclusions are drawn and recommendations for further studies are provided. Thesis structure has 6 parts: introduction, theoretical background and literature review, research methodology, electromagnetic radiation research, conclusions and recommendations, and references. Thesis consists of: 99 p. text without appendices, 47 figures, 9 tables, 62 bibliographical entries. Appendices are provided separately.

Baigiamajame magistro darbe analizuojamas stochastinis dviej懦 orlaivi懦 konfliktin臈s situacijos aptikimas horizontalioje plok拧tumoje. Analitin臈je dalyje i拧d臈stomos svarbiausios s膮vokos, nagrin臈jamos skirtingos orlaivi懦 konflikto aptikimo priemon臈s, j懦 privalumai bei tr奴kumai, analizuojama neapibr臈啪tum懦 寞taka orlaivi懦 konflikto aptikimui. Tiriamojoje dalyje apra拧oma tyrimo eiga, s膮lygos bei matematinis modelis, tinkamas vertinti stochastini懦 parametr懦 寞tak膮 dviej懦 orlaivi懦 konfliktin臈s situacijos i拧sid臈stymui. I拧nagrin臈jus tyrimo rezultatus, pateikiamos konflikt懦 analiz臈s i拧vados ir rekomendacijos tolesniems tyrimams. Darb膮 sudaro 5 dalys: 寞vadas, teorin臈 dalis, kurioje nagrin臈jami orlaivi懦 konflikto aptikimo b奴dai, metodin臈 dalis, kurioje apra拧omas si奴lomas dviej懦 orlaivi懦 konflikto aptikimo modelis, bendrosios tyrimo i拧vados ir rekomendacijos, literat奴ros s膮ra拧as. Darbo apimtis 鈥� 81 p. teksto be pried懦, 33 iliustracijos, 9 lentel臈s, 65 bibliografiniai 拧altiniai.

In this master鈥檚 thesis, the stochastic detection of a conflict situation between two aircraft in the horizontal plane is analyzed. The analytical part presents the key concepts, examines various aircraft conflict detection methods along with their advantages and disadvantages, and analyzes the impact of uncertainties on conflict detection. The research section describes the study process, conditions, and the mathematical model suitable for assessing the influence of stochastic parameters on the spatial distribution of a two aircraft conflict. Based on the analysis of the results, conclusions and recommendations for future research are provided. Structure: introduction, theoretical part discussing conflict detection methods, methodological part presenting the proposed two aircraft conflict detection model, conclusions and recommendations, references. Thesis consists of: 81 pages of text without appendices, 33 illustrations, 9 tables, 65 bibliographical entries.

Baigiamajame magistro darbe yra analizuojama Palangos skryd啪i懦 valdymo rajono ir aerodromo skryd啪i懦 valdymo zonos, j懦 atvykim懦 mar拧rutai ir skryd啪iai jose. Teorin臈je dalyje apra拧oma oro erdv臈s klasifikacija, delegavimo principai, atvykim懦 ir i拧vykim懦 koncepcija bei atskrendan膷i懦 ir i拧skrendan膷i懦 orlaivi懦 t臋stinio 啪em臈jimo ir auk拧t臈jimo proced奴r懦 nauda. Praktin臈je dalyje, pasitelkiant Eurokontrol臈s NEST 寞rank寞 ir 2022 met懦 skryd啪i懦 sraut懦 duomenis, yra nustatomos 寞 Palang膮 atvykstan膷i懦 orlaivi懦 trajektorijos ir 啪em臈jimo ypatum懦 spragos. Atsi啪velgiant 寞 pasteb臈tas dabartinio oro erdv臈s modelio bei naudojam懦 atvykimo mar拧rut懦 tendencijas ir tr奴kumus, yra atliekamos horizontalios Palangos TMA oro erdv臈s ir (STAR) atvykim懦 mar拧rut懦 modifikacijos. Pagrindinis modifikacij懦 tikslas yra optimizuoti aerodromo bei skryd啪i懦 valdymo rajono oro erdv臈s model寞 ir suefektyvinti dabartinius nepatogius ir neefektyvius mar拧rutus, palaikant t臋stin寞 啪em臈jim膮 ir suma啪inant aerodrome taikom懦 proced奴r懦 poveik寞 aplinkosaugai. Taip pat yra pasi奴lomas naujas, efektyvesnis oro erdv臈s modelis bei STAR mar拧rutas. Pateikiamos i拧vados ir rekomendacijos. Darb膮 sudaro 6 dalys: 寞vadas, teorin臈 dalis, kurioje yra apra拧omi oro erdv臈s modelio aspektai, TMA ir SID/STAR mar拧rut懦 metodologija, tiriamoji dalis, kurioje yra atliekami oro erdv臈s modelio ir STAR mar拧rut懦 pakeitimai, i拧vados ir rekomendacijos, literat奴ros s膮ra拧as. Darbo apimtis 鈥� 74 p. be pried懦, 40 iliustracij懦, 10 lenteli懦, 49 bibliografiniai 拧altiniai. Atskirai pridedami darbo priedai.

This master thesis analyses Palangas terminal maneouvering area and aerodrome air traffic control zone flights and their routes. The theoretical part describes airspace classification, delegation principles, standard arrival and departure concept, as well as the benefit of continous descent and climb operations for arriving and departing traffic. In the practical part, incomming traffic trajectories and their disadvantages are determined using Eurocontrols NEST tool and 2022 flight data. Horizontal Palangas TMA airspace and standard instrument arrival modifications are made, based on the current airspace and (STAR) flaws. The main goal of the modifications is to optimise the current aerodrome and TMA model, as well as the currently used ineffective arrival routes, while maintaining continous descent operations and reducing the currently used procedure environmental impact. Also, a new and more effective airspace model, as well as a new STAR route is made. Conclusions and recommendations are presented. The thesis consists of 6 parts: introduction, theoretical part, which describes airspace aspects, TMA and SID/STAR route methodology, practical part, which shows the airspace and route re-modelling of Palangas TMA, conclusions and recommendations, list of references. The thesis consists of 74 pages without appendixes, 40 pictures, 10 tables, 49 bibliographical references. Appendices are attached seperately.

Baigiamajame magistro darbe tiriama elektra varom懦 bepilo膷i懦 orlaivi懦 (dron懦) skryd啪io laiko priklausomyb臈 nuo skryd啪iui naudojamo energijos 拧altinio. Tyrime lyginami skirting懦 baterij懦 (Li-Po, Li-ion ir Li-S) efektyvumo rodikliai, tokie kaip energijos ir galios tankis, terminis stabilumas bei i拧krovos C reitingas skirtinguose drono skryd啪io etapuose: kilimo, horizantaliojo skryd啪io ir nusileidimo metu. Naudojant programas Matlab ir Mission Planner buvo atliktos simuliacijos ir empirin臈s analiz臈s metodu, naudojant i拧pl臈stin寞 Kalmano filtr膮 (EKF), buvo 寞vertinta, kaip skirtingi baterij懦 tipai veikia drono veikimo laik膮 skryd啪io metu taikant 寞vairius skryd啪io poky膷ius. Tyrimo rezultatai parod臈, kad skirtingi energijos 拧altiniai, tokie kaip li膷io jon懦 ir li膷io sieros baterijos, turi specifin寞 efektyvum膮 tam tikrose misij懦 faz臈se, lyginant su tradicin臈mis Li-Po baterijomis. Gauti rezultatai gali b奴ti reik拧mingi pl臈tojant bepilo膷i懦 orlaivi懦 sprendimus tiek civilin臈je, tiek karin臈je srityje.

The master鈥檚 thesis investigates the dependence of flight time of electrically powered unmanned aerial vehicles (drones) on the energy source used for flight. The study compares the efficiency indicators of different batteries (Li-Po, Li-ion, and Li-S), such as energy and power density, thermal stability, and discharge C rating during different drone flight phases: take-off, horizontal flight, and landing. Using the software programs Matlab and Mission Planner, simulations were performed, and through the empirical analysis method using the Extended Kalman Filter (EKF), the impact of different battery types on drone operation time during flight with various flight changes was evaluated. The results showed that different energy sources, such as lithium-ion and lithium-sulfur batteries, have specific efficiencies in certain mission phases compared to traditional Li-Po batteries. The obtained results may be significant in developing unmanned aerial vehicle solutions in both civilian and military sectors.

Baigiamajame magistro darbe nagrin臈jama besileid啪ian膷io orlaivio padangos s膮veikos su 拧lapia kilimo ir t奴pimo tako danga dinamika t奴pimo metu. Padanga modeliuojama kaip elastingas, deformuojantis 啪iedas. Orlaivio rato padangos ir vandens sluoksnio s膮veika apra拧oma Reinoldso lygtimi, kuri sprend啪iama baigtini懦 element懦 metodu. Baigtini懦 element懦 lyg膷i懦 sistem膮 i拧vedama panaudojant Galiorkino metod膮. Skaitin臈s analiz臈s b奴du 寞vertinta t奴pimo tako lygaus pavir拧iaus ir pavir拧iaus esan膷i懦 grioveli懦 寞taka vandens sl臈gio pasiskirstymui.

This master鈥檚 thesis investigates the dynamics of an aircraft tire interacting with a wet runway surface during landing. The tire is modeled as an elastic, deformable ring. The interaction between the aircraft tire and the water layer is described by the Reynolds equation, which is solved using the finite element method. The system of finite element equations is derived through the application of the Galerkin method. Numerical analysis is conducted to evaluate the influence of both a smooth runway surface and a grooved surface on the distribution of water pressure.

Tyrimo tikslas 鈥� i拧tirti sraigtasparnio 鈥濩abri G2鈥� apled臈jimo 寞tak膮 skryd啪io charakteristikoms. Tyrimo objektas 鈥� 鈥濩abri G2鈥� aerodinaminis profilis 鈥� OA209 esant 寞vairioms ledo susidarymo s膮lygoms. Tyrime taikyti baigtini懦 t奴ri懦 metodai: skaitiniai skys膷i懦 dinamikos modeliavimai ANSYS aplinkoje, ledo kaupimo simuliacijos FENSAP-ICE programa, o gauti rezultatai validuoti remiantis literat奴ros ir eksperimentiniais duomenimis. Analiz臈 rodo, kad 寞vairios ledo formos labai kei膷ia aerodinamikos parametrus: ant ledo dengto profilio keliamoji j臈ga smarkiai suma啪臈ja, o pasiprie拧inimo j臈ga padid臈ja, kritinis atakos kampas suma啪臈ja. Gauti rezultatai patvirtina literat奴ros ir eksperiment懦 duomenis. I拧vadoje pa啪ymima, kad 拧ie duomenys leid啪ia geriau suprasti sraigt懦 aerodinamikos poky膷ius apled臈jusi懦 s膮lyg懦 atvejais ir gali pad臈ti optimizuoti rotori懦 konstrukcij膮 bei eksploatavim膮, siekiant didinti skryd啪io saug膮 apled臈jimo s膮lygomis.

The aim of the study is to investigate the impact of icing on the flight characteristics of the 鈥淐abri G2鈥� helicopter. The object of the research is the 鈥淐abri G2鈥� aerodynamic profile 鈥� OA209 鈥� under various ice formation conditions. The study applies the finite volume method: computational fluid dynamics (CFD) simulations in the ANSYS environment and ice accretion modeling using the FENSAP-ICE software. The obtained results were validated based on literature and experimental data. The analysis shows that different ice formations significantly alter aerodynamic parameters: lift on the iced profile is considerably reduced, drag increases, and the critical angle of attack decreases. The results confirm trends reported in the literature and experiments. It is concluded that these findings enhance the understanding of rotor aerodynamic changes under icing conditions and can contribute to optimizing rotor design and operation to improve flight safety in such environments.

Baigiamajame magistro darbe nagrin臈jamas bepilo膷io orlaivio skryd啪io tikslumas ir stabilumas, atliekant Monte Carlo simuliacijas SITL (angl. Software-In-The-Loop) aplinkoje naudojant 鈥濧rduPilot鈥� autopiloto programin臋 寞rang膮. Tyrime vertinama, kaip kritiniai i拧oriniai veiksniai veikia orlaivio geb臈jim膮 laikytis suplanuotos trajektorijos bei palaikyti stabil懦 skryd寞. Analizuojama v臈jo 寞taka, algoritm懦 parametrai, j懦 paklaidos. Naudojant eksperimentini懦 skryd啪i懦 metu gautus duomenis, atliekami skai膷iavimai. Rezultatai pateikiami statistini懦 rodikli懦 ir palyginim懦 forma bei nubr臈啪iami grafikai panaudojant kompiuterin臋 programin臋 寞rang膮 鈥濵atlab鈥�. Darb膮 sudaro 6 dalys: 寞vadas, bepilo膷io orlaivio algoritm懦 ap啪valga, skryd啪io tikslumo ir stabilumo vertinimo metodika, skryd啪io tikslumo ir stabilumo tyrimas, i拧vados ir rekomendacijos, literat奴ros s膮ra拧as. Darbo apimtis 鈥� 68 p. teksto be pried懦, 49 iliustr., 8 lentel臈s, 31 bibliografiniai 拧altiniai. Atskirai pridedami darbo priedai.

The master's thesis examines the flight accuracy and stability of an unmanned aerial vehicle by conducting Monte Carlo simulations in a SITL (Software-In-The-Loop) environment using the 鈥淎rduPilot鈥� autopilot software. The study evaluates how critical external factors affect the aircraft's ability to maintain its planned trajectory and sustain stable flight. Wind influence, algorithm parameters, and their inaccuracies are analyzed. Calculations are performed using data obtained during experimental flights. The results are presented in the form of statistical indicators and comparisons, all graphs are created using MATLAB software. Structure consists of 6 parts: introduction, review of unmanned aerial vehicle algorithms, methodology for evaluating flight accuracy and stability, analysis of flight accuracy and stability, conclusions and recommendations, references. Thesis consists of: 68 p. without appendices, 49 pictures, 8 tables, 31 bibliographical entries. Appendices included.

Baigiamajame magistro darbe tiriama propelerio trauka su oro srauto 寞p奴timo sistema esant skirtingiems propelerio sukimosi grei膷iams. Tyrimo tikslas 鈥� i拧tirti srauto 寞p奴timo sistem懦 darom膮 寞tak膮 propeleri懦 traukai. 艩io tyrimo objektai yra du propeleriai 鈥� supaprastintos geometrijos ir modern奴s. Propelerio modeliams sukurti naudojama programin臈 寞ranga ANSYS. Tyrimas atliekamas pasitelkiant skaitin寞 baigtini懦 t奴ri懦 metod膮 ir atliekami skai膷iavimai pagal pritaikyt膮 SST k-蠅 model寞. Atlikus tyrim膮, gauti rezultatai analizuojami, palyginami ir suformuluojamos i拧vados.

The conclusive master thesis investigates the thrust of a propeller with a flow injection system and compares it with the thrust of a propeller without a flow injection system. The aim of the study is to investigate the influence of flow injection systems on propeller thrust at different propeller rotational speeds. Two propellers, a simplified geometry and a modern one, have been selected for the study. Propeller models have been developed using ANSYS software. The study is carried out using the numerical finite volume method. Software performs the calculations according to the fitted model SST k-蠅. Obtained results are analysed for comparison and conclusions are drawn.