黑料不打烊

Baigiamajame magistro darbe pateikiamas 啪emo da啪nio energijos surinkimo sistemos tyrimas, kei膷iant ri膷i懦 dyd寞. Analitin臈je magistro darbo dalyje pateikiamas esam懦 energijos surinkimo sistem懦 tyrim懦, jose naudojam懦 parametr懦 ir sistem懦 galios skai膷iavimo metod懦 tyrimas. Metodologin臈je dalyje apra拧oma bandomoji sistema ir jos skirtingos dalys, parametr懦 parinkimas, bandom懦j懦 parametr懦 apra拧ymas ir rezultat懦 vertinimo metodai, apskai膷iuojant determinacijos koeficient膮 ir adekvatumo koeficient膮. Pateikiami ir apra拧omi did啪iausios 寞tampos, did啪iausios galios ir vidutin臈s galios rezultatai. Darbo apimtis 鈥� 62 puslapiai teksto be pried懦, 43 iliustracijos, 8 lentel臈s, 21 bibliografini懦 拧altin懦. Atskirai pridedami darbo priedai.

The final master鈥檚 thesis presents an investigation of a low-frequency energy harvesting system by changing the size of the coils. The analytical part of the master鈥檚 thesis presents an investigation of existing research on energy harvesting systems, parameters used in them and calculation methods for the power of the systems. The methodological part describes the system that was tested and its different sections, parameter selection and description of parameters to be tested, with 12 sets of parameters selected, and methods for the evaluation of the results, with calculation of determination coefficient and adequacy factor. The results of peak voltage, peak power and average power are presented and described. Scope of the work 鈥� 62 p. text without appendices, 43 illustrations, 8 tables, 21 bibliographic sources.

Baigiamajame bakalauro darbe kuriamas vienkartini懦 popierini懦 puodeli懦 smulkinimo 寞renginys, skirtas suma啪inti puodeli懦 kiek寞 buitin臈je aplinkoje prie拧 perdirbim膮. Analitin臈je dalyje nagrin臈jami ir apra拧omi rinkoje esantys pramoniniai ir komerciniai smulkintuvai, j懦 konstrukcijos ir techniniai parametrai, palyginami j懦 privalumai ir tr奴kumai. Remiantis pana拧i懦 寞rengini懦 ap啪valga, pateikiamas 聽technologinis sprendimas ir projektinis pagrindimas buitiniam 寞renginiui. Atliekami vieno veleno pjovimo rotoriaus mazgo skai膷iavimai, variklio ir reduktoriaus 聽parinkimas bei konstrukcini懦 komponent懦 stiprumo 寞vertinimas. Darbe pateikiamos schemos 鈥� kinematin臈 diagrama, elektrin臈 blokin臈 schema ir valdymo algoritmas, kurios tiksliai atspindi 寞renginio veikimo logik膮 ir valdym膮. Taip pat apra拧omi darbuotoj懦 saugos reikalavimai, 寞vertinami galimi rizikos veiksniai ir pateikiamos prevencin臈s priemon臈s. Atliekami smulkintuvo ekonominiai skai膷iavimai, 寞skaitant gamybos s膮naudas ir ekonominio efektyvumo vertinim膮. Darb膮 sudaro 寞vadas, pana拧i懦 konstrukcij懦 ir specifini懦 komponent懦 ap啪valga, projektiniai skai膷iavimai, konstrukcijos ir veikimo principo apra拧ymas, darbo sauga, ekonominiai skai膷iavimai ir i拧vados. Grafin臋 dal寞 sudaro bendro vaizdo br臈啪inys (1 A1 lapas), surinkimo br臈啪inys (1 A1 lapas), kinematin臈 diagrama (0,25 A1 lapas), elektrin臈-blokin臈 schema (0,25 A1 lapas), valdymo algoritmas (0,5 A1 lapas), pasirinktos detal臈s darbo br臈啪inys (0,5 A1 lapas) ir ekonominiai rodikliai (0,5 A1 lapas). Darbo apimtis 鈥� 79 puslapiai teksto be pried懦, 24 paveikslai, 6 lentel臈s ir 40 bibliografini懦 拧altini懦.

The final bachelor's thesis involves developing a shredding machine for disposable paper cups, designed to reduce the volume of cups in a domestic setting prior to recycling. The analytical section examines and describes existing industrial and commercial shredders available on the market, their designs, and technical parameters, followed by a comparison of their advantages and disadvantages. Based on a review of comparable devices, a sample technological solution and design rationale for a domestic-scale device are presented. Calculations are performed for the single-shaft cutting rotor assembly, the selection of a motor and gearbox drive, and the strength of the structural components, which are used to select the optimal mechanical and electrical components. The paper includes schematics鈥攁 kinematic diagram, an electrical block diagram, and a control algorithm鈥攖hat precisely reflect the operating logic and control of the device. Occupational safety requirements for workers are also described, potential risk factors are assessed, and preventive measures are provided. Economic calculations for the shredder are completed, including production costs and an assessment of economic efficiency. The work consists of an introduction, a review of similar designs and specific components, design calculations, a description of the design and operating principle, labor safety, economic calculations, and conclusions. The graphic section consists of a general view drawing (1 A1 sheet), an assembly drawing (1 A1 sheet), a kinematic diagram (0.25 A1 sheet), an electrical block diagram (0.25 A1 sheet), a control algorithm (0.5 A1 sheet), a working drawing of the selected part (0.5 A1 sheet), and economic indicators (0.5 A1 sheet). The volume of the work is 79 pages of text excluding appendices, 24 figures, 6 tables, and 40 bibliographic sources.

Baigiamajame bakalauro darbe pateikiamas medicinini懦 priemoni懦 pristatymo roboto va啪iuokl臈s ir mechatronin臈s saugojimo sistemos projektavimo procesas. Darbo analitin臈je dalyje apra拧omi analogi拧ki pristatymo robotai, atliekamas j懦 palyginimas ir pateikiamas pasirinktas konstrukcinis sprendinys. Robot膮 sudaro du skyriai, i拧 kuri懦 vienas skirtas temperat奴rai jautriems daiktams laikyti, motorizuoti stal膷i懦 b臈geliai ir abiej懦 saugojimo skyri懦 u啪rakinimo mechanizmai. Robote taip pat 寞rengta keturi懦 varom懦j懦 rat懦 sistema su be拧epet臈liniais nuolatin臈s srov臈s varikliais, LiDAR jutiklis, trimat臈 RGB gylio kamera, inercinis matavimo blokas, enkoderiai, artumo jutikliai, veikiantys skryd啪io laiko principu, apsauginiai sm奴gio jutikliai, valdymo sistemos, relin臈 saugos sistema ir avarinio stabdymo mygtukas. Apskai膷iuoti roboto va啪iuokl臈s komponentai, 寞skaitant rat懦 pavarai reikaling膮 sukimo moment膮 ir elektros gali膮, atlikti velen懦 skai膷iavimai, parinkti guoliai ir atlikta guolio korpuso statin臈 simuliacija. Remiantis parinktais komponentais, sudaryta ir pateikta sistemos elektrin臈 blokin臈 schema bei va啪iuokl臈s kinematin臈 schema, jos apra拧ytos darbe. Taip pat apra拧yta ir pateikta roboto b奴sen懦 veikimo schema. Nagrin臈jami darbuotoj懦 saugos ir aplinkos apsaugos reikalavimai, taikomi saugioms roboto navigacijos ir saugojimo sistemos naudojimo instrukcijoms, taip pat saugaus i拧ardymo ir technin臈s prie啪i奴ros proced奴roms. Pateikiami ekonominiai skai膷iavimai ir rezultatai: s膮naudos, gaminio savikaina, pelningumo l奴啪io ta拧kas, pinig懦 srautai, atsipirkimo laikotarpis ir vidin臈 gr膮啪os norma. Darbo apimtis 鈥� 106 puslapiai teksto be pried懦, 53 iliustracijos, 28 lentel臈s, 93 literat奴ros 拧altiniai ir priedai. Grafin臋 dal寞 sudaro bendrojo vaizdo br臈啪inys (A1), va啪iuokl臈s surinkimo br臈啪inys (A1), veikimo algoritmas (A2), kinematin臈 schema (A3), elektrin臈 blokin臈 schema (A3), du detali懦 br臈啪iniai (2脳A3) ir ekonominiai rodikliai (A2).

The final bachelor thesis presents the design process of the 鈥淐hassis and Mechatronic Storage System for a Medical Delivery Robot.鈥� The analytical part of the thesis describes analogous delivery robots, with comparisons made, and the chosen design solution is presented. The robot consists of two compartments, one specifically for temperature sensitive items. The system has motorized drawer slides and locking mechanisms for both storage units. The robot also contains a four鈥憌heel鈥慸rive system (with brushless DC motors), LiDAR, a 3D RGB鈥慏epth Camera, an Inertial Measurement Unit, encoders, Time of Flight proximity sensors, bumper sensors, controller systems, a relay safety system, and an emergency stop button. The chassis components of the robot were calculated, including the torque and electrical power required for the wheel drive, the shaft calculations, the bearing selection, and a static simulation of the bearing housing. The electrical block diagram for the system and the kinematic scheme for the chassis was designed with the selected components and are presented and described. The operation diagram of the robot鈥檚 states is described and presented. Occupational and environmental safety standards for the safe working instructions of the robot鈥檚 navigation and storage system are described, along with the safe disassembly and maintenance procedures. Economic calculations and results for the costs, product cost, break鈥慹ven point, cash flow, payback period, and internal rate of return are presented. The scope of the work includes 106 pages of text without annexes, 53 illustrations, 28 tables, 93 references, and annexes. The graphic part consists of a general view drawing (A1), an assembly drawing of the chassis (A1), an operating algorithm (A2), a kinematic scheme (A3), an electrical block diagram (A3), two part drawings (2 脳 A3), and economic indicators (A2).

艩iame baigiamajame darbe sprend啪iama filamentinio 3D spausdinimo problema 鈥� 鈥瀞paghetti鈥� tipo klaidos. Darbo metu sukurta automatizuota sistema, galinti aptikti tokio tipo klaidas ir automati拧kai stabdyti spausdinimo proces膮 i拧vengiant nuostoli懦. I拧nagrin臈tos 4 jau esan膷ios sistemos: 鈥濷bico鈥�, 鈥濻implyPrint鈥�, 鈥濸rintGuard鈥� ir 鈥濸iNozCam鈥�, taip pat ap啪velgti 3 DI objekt懦 atpa啪inimo modeliai ir siekiant padidinti sistemos tikslum膮, projektuojamoje sistemoje panaudoti 2 DI modeliai: RF-DETR ir YOLO26. Suprojektuotas 鈥濴ogitech C270鈥� kameros ir LED moduli懦 stovas, kuris u啪tikrina ger膮 spausdinamo objekto ap拧vietim膮 bei gaunam懦 vaizdo kadr懦 kokyb臋. Pavaizduota ir paai拧kinta elektrin臈 blokin臈 schema, DI modeli懦 architekt奴ros, bei pagrindiniai kodo blokai atsakingi u啪 DI modeli懦 veikim膮. Parodyta, kaip surinkta duomen懦 baz臈 bei koks apmokyt懦 DI modeli懦 tikslumas, sudaryti ir pateikti darbo saugos reikalavimai, atlikti ekonomini懦 rodikli懦 skai膷iavimai Darb膮 sudaro 9 dalys: 寞vadas, analogi拧k懦 konstrukcij懦 ir DI modeli懦 ap啪valga, projektiniai skai膷iavimai, sistemos ir veikimo principo apra拧ymas, darb懦 sauga, ekonominiai skai膷iavimai, i拧vados, literat奴ros s膮ra拧as, priedai. Darbo apimtis 鈥� 65 puslapiai be pried懦. Darbe yra 32 paveikslai, 11 lenteli懦, 21 bibliografinis 拧altinis.

This thesis addresses the problem of filament 3D printing - "spaghetti" type errors. During the work, an automated system was created that can detect this type of error and automatically stop the printing process to avoid losses. 4 existing systems were analyzed: "Obico", "SimplyPrint", "PrintGuard" and "PiNozCam", as well as 3 AI object recognition models were reviewed and in order to increase the accuracy of the system, 2 AI models were used in the designed system: RF-DETR and YOLO26. A stand for a "Logitech C270" camera and LED modules was designed, which ensures good illumination of the printed object and the quality of the received video frames. The electrical block diagram, AI model architectures, and the main code blocks responsible for the operation of AI models were depicted and explained. It is shown how the database was collected and what is the accuracy of the trained AI models, occupational safety requirements are compiled and presented, and economic indicator calculations are performed. The work consists of 9 parts: introduction, review of analogous structures and AI models, design calculations, description of the system and operating principle, occupational safety, economic calculations, conclusions, references, appendices. The work is 65 pages without appendices. The work contains 32 figures, 11 tables, 21 bibliographical sources.

艩iame baigiamajame bakalauro darbe pristatomas alternatyvus gyvenam懦j懦 nam懦 saul臈s moduli懦 proaktyvios prie啪i奴ros sprendimas. Derinant nat奴ralios kalbos apdorojim膮 ir kompiuterin臋 reg膮, si奴lomas sprendimas suteikia konkurencin寞 prana拧um膮 prie拧 esamus rinkos sprendimus. Kadangi prioritetas teikiamas ka拧t懦 efektyvumui, i拧manioji paleidimo sistema padeda taupyti brangius i拧teklius.Komponent懦 parinkimas buvo optimizuotas atsi啪velgiant 寞 kra拧tini懦 skai膷iavim懦 galimybes, patikimum膮 ir rinkos analiz臋. Sistem膮 sudaro oro s膮lygoms atsparus individualiai suprojektuotas 3D spausdintas korpusas, pagamintas i拧 akrilnitrilo stireno akrilato; 鈥濺aspberry Pi 5鈥� su 8 GB RAM, veikiantis kaip mikrokompiuteris; aktyvus au拧intuvas, skirtas 拧ilumos valdymui lauko s膮lygomis; 鈥濩amera Module 3鈥�, naudojamas kaip kompiuterin臈s regos modelio vaizdo jutiklis; AM2302/DHT22 temperat奴ros ir dr臈gm臈s jutiklis, skirtas regioniniams temperat奴ros ir dr臈gm臈s rodikliams matuoti; bei maitinimo 拧altinis, veikiantis kaip pagrindinis energijos 拧altinis. Mechaniniai ir analitiniai skai膷iavimai patvirtino konstrukcijos 寞gyvendinamum膮. Galutin臈s sistemos numatoma mas臈 yra 290 g. Bendrieji sistemos matmenys yra 179 mm 脳 56 mm 脳 133 mm. Taip pat buvo sudaryta apibendrinta algoritmin臈 veikimo schema ir DI architekt奴ros diagrama. Ekonomin臈 analiz臈 parod臈, kad med啪iag懦 s膮mata siekia 216 EUR, tiesiogin臈s kintamosios gamybos s膮naudos 鈥� 301 EUR, metin臈s pastoviosios s膮naudos 鈥� 6000 EUR, komercinis l奴啪io ta拧kas 鈥� 40,3 vieneto, o atsipirkimo laikotarpis 鈥� 5,25 met懦. Esant 19,05 % investicij懦 gr膮啪ai, 拧ie ekonominiai rodikliai patvirtina 拧ios itin efektyvios modernios saul臈s moduli懦 prie啪i奴ros ir defekt懦 aptikimo koncepcijos komercin寞 gyvybingum膮.

This final bachelor鈥檚 thesis presents an alternative solution for proactive maintenance of residential solar panels. By combining natural language processing and computer vision, it offers a competitive edge over existing market solutions. With cost efficiency prioritized, the smart trigger system conserves expensive resources. Component selection was optimized for edge computation, reliability, and market analysis. The system comprises a weatherproof, custom 3D enclosure printed with Acrylonitrile Styrene Acrylate; a Raspberry Pi 5 with 8 GB of RAM serving as the microcomputer; an Active Cooler for thermal management in outdoor settings; a Camera Module 3 as the visual sensor for the computer vision model; an AM2302/DHT22 temperature and humidity sensor for regional temperature and humidity metrics; and a power supply serving as the main power source. Mechanical and analytical calculations confirmed structural feasibility. The final system is estimated to weigh 290 g. The general dimensions of the system are 179 mm x 56 mm x 133 mm. An abstracted algorithmic flow and an AI architecture diagram were also created. Economic analysis revealed a bill of materials of 216 EUR, a direct variable manufacturing cost of 301 EUR, annual fixed costs of 6000 EUR, a commercial break-even point of 40.3 units, and a payback point of 5.25 years. With an ROI of 19.05%, these economic indicators confirm the commercial viability of this highly efficient modern concept for solar panel maintenance and defect detection.

Baigiamajame bakalauro darbe projektuojama automatin臈 klimato kontrol臈s sistema. Analitin臈je dalyje nagrin臈jami ir apra拧omi analoginiai 寞renginiai. Ap啪velgus analoginius 寞renginius pateiktas technologinis sprendimo ir projektavimo pagrindimas. Atlikti pastoviosios srov臈s be拧epet臈linio variklio skai膷iavimai ir sistemos stipruminiai skai膷iavimai naudojant 鈥濻olidWorks鈥� program膮. Baigiamajame darbe parinkti sistemai tinkantis elektriniai komponentai ir sudarytos schemos 鈥� kinematin臈 schema, strukt奴rin臈 鈥� blokin臈 schema ir valdymo algoritmas, kuris vaizduoja sistemos veikim膮. Apra拧omas darbuotoj懦 saugaus darbo ir aplinkosaugos reikalavimai bei numatomas 寞renginio utilizavimas. Atlikti automatin臈s klimato kontrol臈s sistemos ekonominiai skai膷iavimai, kuriuose apskai膷iuotos kintamosios ir pastoviosios i拧laidos, savikaina ir atsipirkimo laikotarpis. Baigiam膮j寞 darb膮 sudaro - 寞vadas, analogini懦 konstrukcij懦 ir specifini懦 mazg懦 ap啪valga, projektiniai skai膷iavimai, konstrukcijos ir veikimo principo apra拧ymas, darb懦 sauga, ekonominiai skai膷iavimai ir i拧vados. Grafin臈je dalyje pateikti 鈥� bendro vaizdo br臈啪inys (1 lapas A1), mazgo surinkimo br臈啪inys (1 lapas A1), 寞renginio kinematin臈 schema (0.25 lapo A1), 寞renginio strukt奴rin臈-blokin臈 schema (0.25 lapo A1), dviej懦 pasirinkt懦 detali懦 darbo br臈啪iniai (2x0.25 lapo A1), 寞renginio valdymo algoritmas (0.5 lapo A1), ekonominiai rodikliai (0.5 lapo A1). Darbo apimtis 鈥� 62 p. teksto be pried懦, 36 iliustracijos, 23 lenteli懦, 22 bibliografiniai 拧altiniai.

In the bachelor thesis, an automatic climate control system is being designed. The analytical part reviews and evaluates analog devices. Based on analysis of similar devices, technological solutions and design justifications are presented. Calculations of a brushless direct current motor were performed as well as strength calculations of the system using 鈥濻olidWorks鈥� program. The final thesis includes selection of suitable electrical components and diagrams 鈥� a kinematic diagram, a structural 鈥� block diagram and a control algorithm, which illustrates system鈥檚 control. The thesis describes worker safety and environmental requirements, as well as correct disposal of the device. Economical calculations of automatic climate control system are also performed, in which variable and fixed costs as well as the cost price and payback period. The final thesis consists of an introduction, a review of analogous constructions and specific unit, design calculations, a description of the construction and operating principle, a description of work safety, economical calculations and conclusions. The graphical part of the final thesis includes a general view of drawing of the device (A1 sheet), an assembly drawing of the unit (A1 sheet), a kinematic diagram of the system (0.25 A1 sheet), a structural 鈥� block diagram of the system (0.25 A1 sheet), working drawings of two selected parts (2x0.25 A1 sheets), control algorithm of the system (0.5 A1 sheet) and economic indicators (0.5 A1 sheet). The final thesis consists of 62 pages of text without appendices, 36 illustrations, 23 tables and 22 bibliographic sources.

Bakalauro baigiamasis darbas skirtas automatizuotos motorizuotos lang懦 v臈dinimo sistemos projektavimui. Darbe pateikiama analogi拧k懦 lang懦 atidarymo mechanizm懦 analiz臈. Remiantis analiz臈s rezultatais, parinkti tinkami mechatronin臈s sistemos projektavimo sprendimai, med啪iagos ir pramoniniai komponentai. Suprojektuot膮 sistem膮 sudaro kompakti拧kas lango rankenos korpusas, vieno paleidimo sliekinis reduktorius, nuolatin臈s srov臈s variklis su reduktoriumi, patalp懦 klimato steb臈jimo jutikliai, 寞skaitant temperat奴ros, dr臈gm臈s, anglies dioksido ir d奴m懦 jutiklius, ir programuojamo loginio valdiklio blokas. Atlikti perdavimo redukcijos koeficiento ir darbinio sukimo momento skai膷iavimai, siekiant u啪tikrinti mechanizmo funkcionalum膮 ir savaiminio u啪sifiksavimo galimyb臋. Sukurtos sistemos konstrukcinio bloko, laid懦 ir kinematin臈s diagramos. Sliekinio ir guolio korpuso komponentams atlikta baigtini懦 element懦 analiz臈, siekiant 寞vertinti 寞tempi懦 pasiskirstym膮, deformacijas, poslinkius ir saugos koeficientus maksimalios apkrovos s膮lygomis. Valdymo sistemos komponentai parinkti remiantis analogi拧k懦 寞rengini懦 ir sistemos reikalavim懦 analize. Sukurtas 寞renginio valdymo algoritmas. Suformuoti ir apra拧yti aplinkosaugos ir darbo saugos reikalavimai. 漠vertinti suprojektuotos sistemos ekonominiai rodikliai. Apskai膷iuotos med啪iag懦 s膮naudos, gaminio kaina, l奴啪io ta拧kas ir atsipirkimo laikotarpis. Bakalauro darb膮 sudaro: 寞vadas, analogi拧k懦 寞tais懦 analiz臈, projektavimo pagrindimas, perdavimo ir sukimo moment懦 skai膷iavimai, baigtini懦 element懦 analiz臈, valdymo sistemos apra拧ymas, konstrukcin臈s ir laid懦 schemos, valdymo algoritmas, aplinkos ir darbo saugos schemos, ekonominiai skai膷iavimai, i拧vados, literat奴ros s膮ra拧as ir priedai. Darbo apimtis: 71 puslapis teksto be pried懦, 20 iliustracij懦, 7 lentel臈s, 42 bibliografiniai 拧altiniai. Grafin臋 dal寞 sudaro bendro vaizdo br臈啪inys (A1), surinkimo br臈啪inys (A2), mechanini懦 dali懦 darbo br臈啪iniai (2脳A3), sistemos valdymo algoritmo schema (A2), kinematin臈 schema (A2), strukt奴rin臈 blokin臈 schema (A2) ir ekonominiai rodikliai (A2).

Bachelor鈥檚 graduation thesis focuses on the design of an automated motorised window ventilation system. In the thesis analysis of analogous window opening mechanisms is presented. Based on the analysis results suitable design solutions, materials, and industrial components for the mechatronic system were selected. The designed system consists of a compact window handle housing, a single-start worm gear reduction mechanism, a DC gearmotor, indoor climate monitoring sensors including temperature, humidity, carbon dioxide, and smoke sensors, and a programmable logic controller unit. Transmission reduction ratio and operational torque calculations were performed to ensure functionality and self-locking capability of the mechanism. Structural block, wiring, and kinematic diagrams of the system were created. Finite element analysis was carried out for the worm and bearing housing components to evaluate stress distribution, strain, displacement, and safety factors under maximum load conditions. Components for the control system were selected based on the analysis of analogous devices and system requirements. Device control algorithm was created. Environmental and work safety requirements were formed and described. Economic indicators of the designed system were evaluated. Material costs, product price, break-even point, and payback period were calculated. Bachelor thesis consists of: introduction, analysis of analogous devices, design substantiations, transmission and torque calculations, finite element analysis, control system description, structural and wiring diagrams, control algorithm, environmental and work safety, economic calculations, conclusions, references, and appendixes. Work volume: 71 pages of text without appendixes, 20 illustrations, 7 tables, 42 bibliographical sources. Graphical part consists of general view drawing (A1), assembly drawing (A2), mechanical parts working drawings (2脳A3), system control algorithm diagram (A2), kinematic diagram (A2), structural block diagram (A2), and economic indicators (A2).

Baigiamajame magistro darbe tiriamas oru au拧inamo diodinio lazerio korpusas. Mokslin臈s, technin臈s, normatyvin臈s literat奴ros ap啪valgoje aptariamos lazerio konstrukcijos ir jo strukt奴ros reikalavimai. Taip pat yra analizuojami termin臈s deformacijos ma啪inimo ir kompensavimo metodai. Teorinio termini懦 deformacij懦 tyrimo dalyje yra pateikiamas tyrimo objekto apra拧ymas, atliekamos esamo ir patobulinto korpus懦 termin臈 ir statin臈 simuliacijos ir aptariami gauti rezultatai. Eksperimentinio termini懦 deformacij懦 tyrimo dalyje apra拧omas eksperimentinio tyrimo stendas, 寞ranga ir eiga. Tada yra pateikiami ir analizuojami jo rezultatai. I拧vadose aptariami ir lyginami gauti teorinio it eksperimentinio tyrim懦 rezultatai. Darb膮 sudaro 5 dalys: 寞vadas, literat奴ros ap啪valga, teorinis tyrimas, eksperimentinis tyrimas, i拧vados, literat奴ros s膮ra拧as. Darbo apimtis 鈥� 67 p. teksto be pried懦, 45 iliustracijos, 14 lenteli懦, 30 bibliografiniai 拧altiniai.

The final master's thesis studies an air-cooled diode laser housing. The review of scientific, technical, and normative literature discusses the requirements for the laser design and its structure. Also, it analyses methods for reducing and compensating thermal deformation. The theoretical thermal deformation research provides a description of the research object, performs thermal and static simulations of the existing and improved housings, and discusses the obtained results. The experimental thermal deformation research describes the experimental research stand, equipment, and procedures. Moreover, it presents and discusses its results. The conclusion describes and compares the results obtained from theoretical and experimental research. The work consists of 5 parts: introduction, review of literature, theoretical research, experimental research, conclusions, and references. The volume of the work is 67 p. of text without appendices, 45 illustrations, 14 tables, and 30 bibliographical entries.

Baigiamajame magistro darbe nagrin臈jamas pluo拧tinio lazerio taikymas ner奴dijan膷iojo plieno (AISI 304) pavir拧iaus apdirbimui bei vertinamas susidar臋s pavir拧iaus 拧iurk拧tumas. Tyrime remiamasi galvanoskenerio ir profilometro technologijomis, siekiant nustatyti, kaip skirtingi lazerinio apdirbimo parametrai, tokie kaip galia, skenavimo greitis, impuls懦 trukm臈 ir linij懦 tarpas, lemia pavir拧iaus mikrostrukt奴r膮 ir 拧iurk拧tumo parametrus Ra bei Rz. Teorin臈je dalyje atlikta mokslin臈s literat奴ros analiz臈, palygintos CO鈧� ir pluo拧tini懦 lazeri懦 savyb臈s, aptarti pavir拧iaus kokyb臈s matavimo metodai. Praktin臈je dalyje eksperimentuojama su skirtingais re啪imais ir atliekama ANOVA analiz臈. Tyrimo rezultatai parod臈, kad optimizuotas lazerio parametr懦 derinys leid啪ia pasiekti minimali膮 pavir拧iaus 拧iurk拧tumo reik拧m臋, atitinkan膷i膮 specifinius pramoninius poreikius. Tyrimo metu taip pat pasteb臈ta, kad naudojant tuos pa膷ius lazerinio apdirbimo parametrus galima pakankamai stabiliai pakartoti pavir拧iaus 拧iurk拧tumo rezultatus, nes kartojant proces膮 buvo gaunamos labai pana拧ios Ra ir Rz reik拧m臈s. Tai parod臈, kad tam tikri parametr懦 deriniai veikia gana patikimai ir leid啪ia i拧laikyti pastovi膮 pavir拧iaus kokyb臋. Tokie rezultatai leid啪ia galvoti apie parametr懦 duomen懦 baz臈s k奴rim膮, kurioje pagal norim膮 pavir拧iaus 拧iurk拧tum膮 b奴t懦 galima automati拧kai parinkti tinkamus lazerinio apdirbimo parametrus ar j懦 failus. Ateityje tai gal臈t懦 b奴ti pritaikyta automatizuotam mechatronin臈s lazerinio apdirbimo sistemos valdymui, kai sistema pati parinkt懦 reikalingus nustatymus ir pad臈t懦 tiksliau atkurti pageidaujam膮 pavir拧iaus kokyb臋. Darb膮 sudaro: 寞vadas, literat奴ros ap啪valga, tyrimo metodika ir rezultatai. Darbo apimtis: 72 psl.

This master鈥檚 thesis investigates the application of a fiber laser for the surface processing of stainless steel (AISI 304) and evaluates the resulting surface roughness. The study is based on galvanoscanner and profilometer technologies to determine how different laser processing parameters, such as laser power, scanning speed, pulse duration, and hatch spacing, influence the surface microstructure and the roughness parameters Ra and Rz. The theoretical part of the thesis includes an analysis of scientific literature, a comparison between CO鈧� and fiber laser technologies, and a discussion of surface quality measurement methods. In the practical part, experiments were carried out using different processing modes, followed by ANOVA analysis. The results showed that an optimized combination of laser parameters allows the achievement of minimal surface roughness values that meet specific industrial requirements. The study also revealed that using the same laser processing parameters repeatedly produces stable and repeatable surface roughness results, as very similar Ra and Rz values were obtained during repeated experiments. This indicates that certain parameter combinations operate reliably and help maintain consistent surface quality. These findings suggest the possibility of developing a parameter database in which appropriate laser processing parameter files could be automatically selected according to the desired surface roughness. In the future, such an approach could be applied to automated mechatronic laser processing systems, where the system itself would select the required settings and ensure more precise reproduction of the target surface quality. Thesis scope: 72 pages.

Darbe pristatomas mechatronin臈s sistemos, skirtos architekt奴rini懦 maket懦 interaktyviam pristatymui, projektavimo procesas. Analitin臈je dalyje apra拧omi analogi拧ki architekt奴rini懦 modeli懦 demonstravimo ir jud臈jimo sprendimai. Pasirinktas techninis sprendimas yra pagr寞stas, apra拧omi sistemos konstrukciniai ir elektroniniai komponentai. Suprojektuota sistema susideda i拧 k臈limo ir sukimo mechanizm懦 bei ap拧vietimo sistemos. K臈limo sistemoje naudojama sraigtin臈 pavara, linijin臈s kreipian膷iosios ir LM8UU linijiniai guoliai, o sukimo mechanizme 鈥� frikcin臈 pavara su varan膷iuoju ratu ir atraminiais ratais. Konstrukcijoje naudojami aliuminio vamzdiniai strypai, PET-G laikikliai ir faneros judanti platforma. Sistemai valdyti pasirinktas 鈥濧rduino Mega鈥� mikrovaldiklis, TB6600 啪ingsninio variklio valdiklis, ESP32 modulis ir 24 V LED ap拧vietimo sistema. Darbe atlikti konstrukciniai skai膷iavimai ir statin臈 analiz臈, von Mises ekvivalentiniai 寞tempiai ir konstrukcin臈s deformacijos. Remiantis gautais rezultatais nustatyta, kad suprojektuota sistema atitinka stiprumo ir standumo reikalavimus. Taip pat pateiktos sistemos kinematin臈 ir elektrin臈 blokin臈 schemos bei valdymo algoritmas. Darbe atlikta ekonomini懦 rodikli懦 analiz臈 ir projektavimo bei gamybos s膮naud懦 寞vertinimas. Darb膮 sudaro 109 puslapis teksto be pried懦, 44 iliustracijos, 13 lenteli懦, 14 bibliografini懦 拧altini懦 ir priedai. Grafin臋 dal寞 sudaro bendro vaizdo br臈啪inys (A1), 寞renginio mazgo surinkimo br臈啪inys (A1), veikimo algoritmas (A2), kinematin臈 schema (A3), elektrin臈 blokin臈 schema (A3), dviej懦 parinkt懦 detali懦 darbo br臈啪iniai (2xA3), ekonominiai rodikliai (A2).

The thesis presents the design process of a mechatronic system intended for the interactive presentation of architectural models. The analytical part describes analogous solutions for the demonstration and movement of architectural models. The selected technical solution is justified, and the structural and electronic components of the system are described. The designed system consists of lifting and rotating mechanisms as well as a lighting system. The lifting system uses a lead screw drive, linear guideways, and LM8UU linear bearings, while the rotating mechanism employs a friction drive with a driving wheel and support wheels. The structure incorporates aluminum tubular rods, PET-G holders, and a plywood moving platform. An Arduino Mega microcontroller, TB6600 stepper motor driver, ESP32 module, and a 24 V LED lighting system were selected for system control. Structural calculations and static analysis were carried out in the thesis, including the evaluation of equivalent von Mises stresses and structural deformations. Based on the obtained results, it was determined that the designed system satisfies the required strength and stiffness criteria. The thesis also presents the kinematic and electrical block diagrams of the system, as well as the control algorithm. In addition, an economic analysis and evaluation of design and manufacturing costs were performed. The thesis consists of 109 pages of text excluding appendices, 44 figures, 13 tables, 14 bibliographic sources, and appendices. The graphical part includes a general assembly drawing (A1), a device assembly drawing (A1), an operation algorithm (A2), a kinematic diagram (A3), an electrical block diagram (A3), working drawings of two selected parts (2脳A3), and economic indicators (A2).