黑料不打烊

Baigiamajame bakalauro darbe nagrin臈jamas trinkeli懦 klojimo 寞renginio, montuojamo ant krautuvo baz臈s, projektavimas. Darbo tikslas 鈥� suformuluoti universalaus ir techni拧kai pagr寞sto 寞renginio koncepcij膮, kuri leist懦 mechanizuotai sugriebti, perkelti, orientuoti ir tiksliai pad臈ti trinkeli懦 paket膮, naudojant krautuvo hidraulin臋 sistem膮. Darbe atlikta analogini懦 寞rengini懦 ir patentini懦 sprendim懦 analiz臈, 寞vertinti taikytini norminiai dokumentai, parinkti pagrindiniai pavaros ir konstrukciniai sprendimai: du dvipusio veikimo hidrauliniai cilindrai judan膷iam griebtuvo prispaudimo sijai valdyti, hidraulinis rotacinis mazgas griebtuvo pasukimui, teleskopin臈s kreipian膷iosios, reguliuojami 拧oniniai centravimo kreipian膷iosios ir kontaktiniai prispaudimo padai bei hidraulinis rotacinis mazgas 360掳. Suformuluotas 寞renginio veikimo principas ir numatytos pradin臈s projektavimo prielaidos kinematin臈 schema, atlikti j臈g懦 ir hidraulikos skai膷iavimai bei konstrukcijos detalizavimas. Darb膮 sudaro: 寞vadas, analogini懦 寞rengini懦 ap啪valga, patent懦 ap啪valga, normini懦 dokument懦 ap啪valga, pavar懦 ir konstrukcini懦 sprendim懦 parinkimas, 寞renginio veikimo principo apra拧ymas, skai膷iavimai, i拧vados, literat奴ros s膮ra拧as, priedai. Darbo apimtis: 81 p. teksto, be pried懦, 29 paveikslai, 16 lenteli懦, 28 bibliografiniai 拧altiniai.

This bachelor鈥檚 thesis examines the design of a paver laying device mounted on a loader base. The aim of the work is to develop a universal and technically justified concept of a device that would enable the mechanized gripping, transfer, orientation and precise placement of a paving block layer by using the hydraulic system of a loader. The thesis includes an analysis of analogous machines and patent solutions, an assessment of applicable normative documents, and the selection of the main drive and structural solutions: two double-acting hydraulic cylinders for controlling the movable clamping beam of the gripper, a hydraulic rotary unit for rotating the gripper, telescopic guides, adjustable side alignment guides, contact clamping pads and a hydraulic rotary unit providing 360掳 rotation. The operating principle of the device was formulated, the initial design assumptions and kinematic scheme were defined, force and hydraulic calculations were performed, and the structure was detailed. The thesis consists of an introduction, a review of analogous devices, a patent review, a review of normative documents, the selection of drive and structural solutions, a description of the operating principle of the device, calculations, conclusions, a list of references and appendices. The scope of the thesis: 81 pages of text, excluding appendices, 29 figures, 16 tables, 28 bibliographic sources.

艩iame darbe pristatomas reguliuojamo plo膷io priekabos, skirtos negabaritini懦 krovini懦, ypa膷 sunkiosios statybin臈s ir pramonin臈s technikos, ve啪imui, projektavimas ir k奴rimas. Darbe analizuojami esami priekab懦 tipai, praplatinimo mechanizmai, Europos transporto taisykl臈s ir eksploatavimo reikalavimai, susij臋 su negabaritini懦 krovini懦 ve啪imu. Remiantis atlikta literat奴ros ir prototipo analize, buvo pasi奴lyta nauja priekabos koncepcija, deranti teleskopines atramines sijas su sinchronizuotais hidrauliniams praplatinimo cilindrais. Priekabos konstrukcija buvo suprojektuota atsi啪velgiant 寞 stiprum膮 ir eksploatacijos lankstum膮. Buvo atlikti pagrindini懦 konstrukcini懦 element懦 keliamosios galios, a拧i懦 apkrovos pasiskirstymo, lenkimo moment懦, 寞tempi懦 ir deformacij懦 skai膷iavimai. Ypatingas d臈mesys buvo skirtas teleskopiniams atraminiams kojoms, fiksavimo kai拧膷io mechanizmui ir suvirintiems sujungimams, siekiant u啪tikrinti saug懦 apkrovos perdavim膮 ir konstrukcijos patvarum膮 eksploatacijos metu. Taip pat buvo suprojektuota hidraulin臈 sistema platformos praplatinimui ir rampos valdymui, 寞skaitant hidraulini懦 cilindr懦, sl臈gio, srauto ir hidraulin臈s stoties parametr懦 skai膷iavimus. Skaitmeniniai modeliavimai ir analitinis patikrinimas patvirtino, kad si奴loma konstrukcija atitinka reikiamus stiprumo ir standumo kriterijus tiek statini懦, tiek dinamini懦 apkrov懦 s膮lygomis. Sukurta priekabos koncepcija u啪tikrina atitikt寞 Europos transporto teis臈s aktams ir kartu padidina negabaritini懦 krovini懦 ve啪imo lankstum膮 bei efektyvum膮. Rezultatai rodo, kad si奴loma reguliuojamo plo膷io priekaba yra techni拧kai patikimas sprendimas, tinkamas 拧iuolaikiniams sunki懦j懦 krovini懦 ve啪imo poreikiams.

This thesis presents the design and development of adjustable-width trailer intended for the transportation of oversized cargo, particularly heavy construction and industrial machinery. The work analyzes existing trailer types, widening mechanisms, European transport regulations, and operational requirements related to oversized cargo transportation. Based on the conducted literature and prototype analysis, a new trailer concept combining telescopic support beams with synchronized hydraulic widening cylinders was proposed. The structural design of the trailer was developed considering both strength and operational flexibility. Calculations of payload capacity, axle load distribution, bending moments, stresses, and deflections of the main structural elements were performed. Particular attention was given to the telescopic outriggers, locking-pin mechanism, and welded connections to ensure safe load transfer and structural durability during operation. A hydraulic system for deck widening and ramp actuation was also designed, including calculations of hydraulic cylinders, pressure, flow rate, and hydraulic station parameters. Numerical simulations and analytical verification confirmed that the proposed structure satisfies the required strength and stiffness criteria under both static and dynamic loading conditions. The developed trailer concept ensures compliance with European transport legislation while improving the adaptability and efficiency of oversized cargo transportation. The results demonstrate that the proposed adjustable-width trailer is a technically reliable solution that suitable for modern heavy transport applications.

Baigiamajame bakalauro darbe nagrin臈jamas vienviet臈s elektrin臈s skraidykl臈s 鈥� svorio poslinkiu valdomos elektrin臈s skraidykl臈s 鈥� projektavimas. Darbe formuojama modulin臈 konstrukcijos koncepcija, kurioje delta sparnas pasirenkamas kaip perkamas modulis, o pagrindinis projektavimo d臈mesys skiriamas skraidykl臈s r臈mui, elektros pavarai, kei膷iamos baterijos kasetei, komponent懦 i拧d臈stymui ir saugiam eksploatavimui. Darbe atlikta analogi拧k懦 skraidykli懦 ir elektrifikavimo sprendini懦 ap啪valga, i拧nagrin臈ti patentiniai bei norminiai 拧altiniai, suformuluoti projektavimo reikalavimai, parinkti pagrindiniai komponentai ir atlikti galios, energijos, mas臈s bei konstrukcijos atsparumo skai膷iavimai. R臈mo konstrukcija vertinama naudojant S460 konstrukcin寞 plien膮, o pagrindiniai apkrov懦 atvejai sudaromi pagal 2g projektin臋 apkrov膮. Papildomai pateikiami baterijos, variklio, propelerio, va啪iuokl臈s, suvirint懦 jung膷i懦 ir tvirtinimo mazg懦 patikrinimai. Darbo rezultatas 鈥� vienviet臈s elektrin臈s skraidykl臈s koncepcija su pagr寞stais pavaros ir konstrukciniais sprendiniais, skai膷iavim懦 suvestin臈mis, eksploatacijos, bandym懦 ir prie啪i奴ros rekomendacijomis. Darbo apimtis: baigiamasis darbas su paveikslais, lentel臈mis, formul臈mis, naudot懦 拧altini懦 s膮ra拧u ir priedais.

The final bachelor鈥檚 thesis examines the design of a single-seat electric aircraft 鈥� a weight-shift-controlled electric aircraft. The work develops a modular structural concept in which the delta wing is selected as a purchased module, while the main design focus is placed on the aircraft frame, electric propulsion system, replaceable battery cassette, component layout, and safe operation. The thesis includes an overview of similar aircraft and electrification solutions, an analysis of patent and regulatory sources, the formulation of design requirements, the selection of main components, and calculations of power, energy, mass, and structural strength. The frame structure is evaluated using S460 structural steel, while the main load cases are based on a 2g design load. Additional checks are provided for the battery, motor, propeller, landing gear, welded joints, and fastening elements. The result of the work is a concept of a single-seat electric aircraft with justified propulsion and structural solutions, calculation summaries, and recommendations for operation, testing, and maintenance. Scope of the thesis: the final thesis includes figures, tables, formulas, a list of references, and appendices.

Baigiamajame magistro darbe i拧analizuota biodyzelino gamybos technologija, fizikin臈s bei chemin臈s savyb臈s. Atlikta j奴r懦 transporto i拧metam懦 拧iltnamio efekt膮 sukelian膷i懦 duj懦 statistikos bei mokslo publikacij懦 analiz臈. Parengta eksperimentini懦 tyrim懦 metodika: stendiniai vidaus degimo variklio bandymai naudojant j奴rin寞 naftos dyzelin膮, hidrint膮 augalin寞 aliej懦 bei j懦 mi拧inius. Tyrimo metu vertinti variklio energetiniai rodikliai (variklio efektyvioji galia, valandin臈s degal懦 s膮naudos, lyginamosios efektyviosios degal懦 s膮naudos, variklio efektyvusis naudingumo koeficientas) ir emisij懦 (NOx, CO, CO2, CH) koncentracija bei d奴mingumas. Atsi啪velgiant 寞 Tarptautin臈s j奴r懦 organizacijos gaires sukuriamas kompleksinis degal懦 panaudojimo vertinimo rodiklis ir atliekama daugiakriterin臈 analiz臈. Apdorojami tyrimo rezultatai. Pateikiamos i拧vados apie biodyzelino bei jo mi拧ini懦 naudojimo poveik寞 variklio darbo efektyvumui, ekonominiams bei aplinkos tar拧os rodikliams. Parengtos i拧vados ir pasi奴lymai.

The Master's thesis analyzes biodiesel production technology as well as its physical and chemical properties. An analysis of Greenhouse Gas emissions statistics from marine transport and scientific publications was performed. In the research methodology section, an experimental research methodology was developed providing for bench tests of an internal combustion engine using marine gas oil, hydrotreated vegetable oil and their blends. During the study engine energy indicators (effective engine power, hourly fuel consumption, specific effective fuel consumption, engine effective efficiency coefficient) and emission concentrations (NOx, CO, CO2, CH) as well as smoke opacity were evaluated. Taking into account the International Maritime Organization guidelines, a complex fuel use assessment indicator is created and multicriteria analysis is performed. The research results are processed. Finally, the conclusions regarding the biodiesel using impact on engine operating efficiency, economic and environmental pollution reduction are presented.

## Anotacija 艩iame baigiamajame darbe nagrin臈jami elektrini懦 paspirtuk懦 naudotoj懦 寞pro膷iai, miesto mikromobilumo i拧拧奴kiai bei galimyb臈s formuoti saugesn臋 eismo kult奴r膮 taikant technologinius, infrastrukt奴rinius ir reguliavimo sprendimus. Spar膷iai augant elektrini懦 paspirtuk懦 naudojimui miestuose, vis didesn寞 d臈mes寞 b奴tina skirti vairuotoj懦 elgsenai, eismo saugumui, infrastrukt奴ros tr奴kumams ir taisykli懦 laikymosi u啪tikrinimui. Tyrime analizuojamos pagrindin臈s saugumo problemos, susijusios su elektrini懦 paspirtuk懦 integravimu 寞 拧iuolaikines transporto sistemas, bei si奴lomi praktiniai sprendimai saugesniam ir tvaresniam miesto judumui u啪tikrinti. Tyrime derinama teorin臈 analiz臈 ir praktiniai vertinimo metodai. Atlikta mokslin臈s literat奴ros analiz臈, nagrin臈janti elektrini懦 paspirtuk懦 saugum膮, vairuotoj懦 elgsen膮, avarij懦 prie啪astis, infrastrukt奴ros pl臈tr膮 ir reguliavimo politik膮. Darbe i拧skiriamos pagrindin臈s saugumo problemos: grei膷io vir拧ijimas, va啪iavimas be 拧almo, vairavimas apsvaigus, netinkamas paspirtuk懦 statymas bei konfliktai su p臈s膷iaisiais. Taip pat analizuoti tarptautiniai pavyzd啪iai i拧 Berlyno, Amsterdamo, Pary啪iaus ir Barselonos miest懦, siekiant nustatyti ger膮j膮 praktik膮 infrastrukt奴ros planavimo, geografinio aptv臈rimo (geofencing) ir miesto mobilumo valdymo srityse. Siekiant sistemingai 寞vertinti saugumo priemones, darbe taikomas daugiakriter臈s sprendim懦 analiz臈s metodas (MCDA), naudojant analitin臈s hierarchijos proces膮 (AHP). 艩i metodika leid啪ia palyginti ir nustatyti prioritetus tarp 寞vairi懦 saugumo kriterij懦, toki懦 kaip vairuotoj懦 elgsena, infrastrukt奴ros kokyb臈, saugumo supratimas ir teis臈s akt懦 vykdymas. Ekspert懦 vertinimai ir Vilniaus elektrini懦 paspirtuk懦 naudotoj懦 apklaus懦 duomenys buvo naudojami porini懦 palyginim懦 matricoms sudaryti bei kriterij懦 svarbai nustatyti. Sprendim懦 pri臈mimo proceso nuoseklumas buvo patikrintas naudojant suderinamumo santyk寞 (Consistency Ratio 鈥� CR), kuris patvirtino rezultat懦 patikimum膮.

This thesis examines the habits of electric scooter (e-scooter) users, the challenges associated with urban micromobility, and the opportunities for fostering a safer traffic culture through technological, infrastructural, and regulatory improvements. With the rapid growth of e-scooter usage in urban areas, concerns regarding rider behavior, road safety, infrastructure limitations, and traffic regulation enforcement have become increasingly significant. The study focuses on identifying the main safety challenges related to e-scooter integration into modern transport systems and proposes practical solutions for improving urban mobility and reducing accident risks. The research combines theoretical analysis with practical evaluation methods. A comprehensive literature review was conducted to examine previous studies on e-scooter safety, rider behavior, accident causes, infrastructure development, and regulatory policies. The study highlights common safety concerns such as speeding, riding without helmets, intoxicated riding, improper parking, and conflicts with pedestrians. International case studies from cities such as Berlin, Amsterdam, Paris, and Barcelona were analyzed to identify best practices in infrastructure planning, geofencing implementation, and urban mobility management. To evaluate safety measures systematically, the study applies the Multi-Criteria Decision Analysis (MCDA) method using the Analytic Hierarchy Process (AHP). The methodology enables the comparison and prioritization of multiple safety-related criteria, including rider behavior, infrastructure quality, safety awareness, and regulatory enforcement. Expert evaluations and survey data from e-scooter users in Vilnius were used to construct pairwise comparison matrices and determine the relative importance of each criterion. The consistency of the decision-making process was verified using the Consistency Ratio (CR), ensuring reliable and logically consistent results. The research also introduces geofencing technology as a practical solution for improving e-scooter safety in urban safety.

艩iame baigiamajame bakalauro darbe nagrin臈jama keleivinio baga啪o vagono pritaikymo galimyb臈 lengviesiems automobiliams transportuoti. Darbe ap啪velgti automobili懦 ve啪imo gele啪inkeliu analogai, keleivini懦 ir specializuot懦 vagon懦 konstrukcijos, patentai bei pagrindiniai norminiai dokumentai. Projektuojamam prototipui pasirinktas 61-7093 modelio baga啪o vagonas. Darbe suprojektuotas pasukimo mechanizmas, kuris leid啪ia automobil寞 pasukti vagono viduje ir nukreipti 寞 numatyt膮 stov臈jimo viet膮. Pasukimo platformos matmenys yra 5,2 脳 2,5 m, o skai膷iavimuose priimta did啪iausia automobilio mas臈 鈥� 3,5 t. Atlikti platformos r臈mo, centrinio mazgo, atramini懦 ratuk懦, guoli懦, krumplin臈s pavaros ir motoreduktoriaus skai膷iavimai. Taip pat numatyta, kad vagone gali b奴ti transportuojami iki keturi懦 lengv懦j懦 automobili懦, kurie ve啪imo metu tvirtinami rat懦 atramomis. Darbe pateikti konstrukciniai sprendimai, skai膷iavimai, darbo saugos ir aplinkosaugos aspektai. Gauti rezultatai parodo, kad pritaikius papildom膮 寞rang膮 keleivinis baga啪o vagonas gali b奴ti naudojamas lengv懦j懦 automobili懦 transportavimui gele啪inkeliu. Darbo tikslas 鈥� I拧analizuoti lengv懦j懦 automobili懦 gabenimo gele啪inkeliu b奴dus bei 寞vertinti keleivinio vagono pritaikymo galimybes automobili懦 transportavimui. Darb膮 sudaro: 寞vadas, literat奴ros analiz臈, analog懦 ir patent懦 ap啪valga, normini懦 dokument懦 ap啪valga, projektuojamo prototipo apra拧ymas, pasukimo mechanizmo projektavimas ir konstrukciniai skai膷iavimai, suprojektuoto mechanizmo apra拧ymas, aplinkosaugos ir darbo saugos dalys, i拧vados, literat奴ros s膮ra拧as, br臈啪iniai. Darbo apimtis 鈥� 69 p. teksto, be pried懦, 23 paveiksl懦, 25 拧altini懦. Atskirai pridedami darbo priedai.

This bachelor鈥檚 final thesis examines the possibility of adapting a passenger baggage railway carriage for the transportation of passenger cars. The thesis reviews analogues of car transportation by rail, the structures of passenger and specialized wagons, patents, and the main regulatory documents. A model 61-7093 baggage wagon was selected for the proposed prototype. The thesis presents the design of a turning mechanism that allows a car to be rotated inside the wagon and directed to the intended parking position. The dimensions of the turning platform are 5.2 脳 2.5 m, and the maximum vehicle mass assumed in the calculations is 3.5 t. Calculations were carried out for the platform frame, central unit, support rollers, bearings, gear transmission, and geared motor. It is also planned that up to four passenger cars can be transported in the wagon, secured during transportation with wheel stops. The thesis presents structural solutions, calculations, and aspects of occupational safety and environmental protection. The results obtained show that, with the installation of additional equipment, a passenger baggage wagon can be used for transporting passenger cars by rail. Aim of the thesis 鈥� To analyse methods of transporting passenger cars by rail and to evaluate the possibilities of adapting a passenger wagon for car transportation. The thesis consists of: an introduction, literature analysis, review of analogues and patents, review of regulatory documents, description of the proposed prototype, design of the turning mechanism and structural calculations, description of the designed mechanism, environmental protection and occupational safety sections, conclusions, list of references, and drawings. The scope of the thesis is 69 pages of text, excluding appendices, 23 figures, and 25 sources. The appendices are provided separately.

Magistro baigiamajame darbe tiriamas rate integruotos pakabos b奴tinumas mikromobiliosiose transporto priemon臈se, jos dinamin臈s charakteristikos bei skys膷i懦 srauto analiz臈. Literat奴ros ap啪valgoje apra拧omi moksliniai straipsniai, kuriuose eksperimentiniu ir matematiniu b奴du tiriamas mikromobili懦 transporto priemoni懦 komfortas bei pakabos b奴tinumas. Tiriamojoje dalyje nustatoma tyrimo metodologija, apra拧omi matematiniai tyrimai, atlikti lyginant mikromobilias transporto priemones su pakaba ir be jos. Naudojant 鈥濵ATLAB鈥� programin臋 寞rang膮 buvo sukurti du matematiniai modeliai pakabos b奴tinybei 寞vertinti. Sudaromas matematinis modelis skirtas rate integruotos pakabos amortizatori懦 skai膷iui nustatyti. Skys膷i懦 sraut懦 analiz臈 buvo atlikta naudojant 鈥濧NSYS Fluent鈥� programin臋 寞rang膮. Buvo pateikti tyrimo rezultatai. Remiantis rezultatais, atliekamas va啪iavimo komforto 寞vertinimas ir suformuluojamos rekomendacijos saugiam va啪iavimui. Strukt奴ra: 寞vadas, literat奴ros ap啪valga, matematinis modeliavimas, skys膷i懦 sraut懦 analiz臈, i拧vados ir pasi奴lymai, literat奴ra. Darbo apimtis - 70 p. teksto, be pried懦, 4 pagrindiniai skyriai, 87 paveikslai, 4 lentel臈s, 17 literat奴ros 拧altini懦.

The final master鈥榮 thesis investigates necessity of in-wheel suspension for micro-mobility vehicles, dynamic characteristics, fluid flow analysis. Literature review presents scientific articles that examine comfort of micro-mobility vehicles and the need of suspension both experimentally and mathematically. The research section establishes the methodology of the study, describes mathematical research conducted while comparing micro-mobility vehicle with and without suspension. Two mathematical models were developed using 鈥濵ATLAB鈥� software for suspension necessity assesment. An additional mathematical model was created for determination of suitable in-wheel suspension assembly. A fluid flow analysis was performed in 鈥濧NSYS Fluent鈥�. Research results were presented. Based on the results, a riding comfort assessment was conducted and recommendations for safe riding are formulated. Structure: introduction, literature review, mathematical modelling, fluid flow analysis, conclusions and suggestions, references. Thesis consist of: 70 p. text without appendixes, 87 figures, 4 tables, 17 references.

艩iame baigiamajame bakalauro darbe analizuojama literat奴ra apie elektrini懦 bekel臈s transporto priemoni懦 transmisijas ir projektuojama elektrin臈 eigos pavara automobilio 鈥濼oyota Hilux" baz臈je. Atlikta patent懦 ir analogini懦 寞rengini懦 analiz臈, 寞vertinti j懦 techniniai sprendimai, privalumai ir tr奴kumai. Remiantis analize, pasirinkta koncepcija, kurioje standartin臈 automobilio pavar懦 d臈啪臈 kei膷iama dviej懦 grei膷i懦 planetiniu reduktoriumi, i拧laikant originali膮 skirstymo d臈啪臋 bei priekin寞 ir galin寞 diferencialus. Apskai膷iuotas transporto priemon臈s galios poreikis ir parinktas elektros variklis bei auk拧tos 寞tampos akumuliatorius, atlikti planetinio reduktoriaus projektiniai skai膷iavimai, krumpliara膷i懦, velen懦 ir i拧dro啪ini懦 jung膷i懦 stiprumo skai膷iavimai, numatytos darb懦 saugos ir aplinkosaugos priemon臈s. Darbo tikslas 鈥� suprojektuoti efektyvi膮, patikim膮 ir saugi膮 elektrin臈s bekel臈s transporto priemon臈s transmisij膮, atitinkan膷i膮 bazinio automobilio eksploatacinius reikalavimus, bei suformuluoti i拧vadas ir pasi奴lymus. Darb膮 sudaro: 寞vadas, teorin臈 ap啪valgin臈 dalis, projektin臈 dalis, aplinkosaugos ir darb懦 saugos dalis, i拧vados ir pasi奴lymai, 拧altini懦 s膮ra拧as. Darbo apimtis 鈥� 60 p. teksto, be pried懦, 14 paveiksl懦, 17 lenteli懦, 19 bibliografini懦 拧altini懦.

This bachelor thesis analyses the literature on transmissions of electric off-road vehicles and designs an electric drive transmission based on the Toyota Hilux. An analysis of patents and analogous devices has been carried out, and their technical solutions, advantages and disadvantages have been assessed. Based on the analysis, a concept was selected in which the standard vehicle gearbox is replaced by a two-speed planetary reducer while retaining the original transfer case and the front and rear differentials. The vehicle power demand was calculated and an electric motor and a high-voltage battery were selected; design calculations of the planetary reducer and strength calculations of the gears, shafts and spline joints were performed, and occupational safety and environmental protection measures were specified. The aim of the work is to design an efficient, reliable and safe transmission for an electric off-road vehicle that meets the operational requirements of the base vehicle, and to formulate conclusions and proposals. The thesis consists of: introduction, theoretical review part, design part, environmental and occupational safety part, conclusions and proposals, list of references and appendices. The volume of the thesis is 60 p. of text, without appendices, 14 figures, 17 tables, 19 bibliographic sources.

Baigiamajame bakalauro darbe nagrin臈jamas automobilio Nissan Silvia S13 priekin臈s pakabos modifikavimas, projektuojant dvisvirt臋 priekin臋 pakab膮 sportiniam naudojimui. Darbe analizuojami analogi拧ki techniniai sprendimai, patentai ir pakabos konstrukcij懦 ypatumai. Remiantis automobilio geometriniais duomenimis ir i拧matuotais atramos ta拧kais, sudaryta naujos pakabos kinematin臈 schema. Atlikti priekinio ir 拧oninio vaizdo kinematiniai skai膷iavimai, nustatyti pagrindiniai pakabos ta拧kai, rato i拧virtimo kampas, vairo a拧ies pad臈tis ir ried臈jimo centro auk拧tis. Pakabos geometrija papildomai patikrinta VSusp aplinkoje. Projektin臈je dalyje SolidWorks aplinkoje suprojektuoti pagrindiniai pakabos elementai: apatin臈 ir vir拧utin臈 svirtys, rato laikiklis, vir拧utin臈s svirties tvirtinimo mazgas ir 寞vori懦 komponentai. Atlikta pagrindini懦 detali懦 stiprumin臈 analiz臈, 寞vertinant 寞tempius, poslinkius ir saugumo koeficientus. Gauti rezultatai parod臈, kad suprojektuoti elementai atlaiko numatytas apkrovas ir yra tinkami pirminiam projektiniam variantui. Darbo apimtis 鈥� 93 p. teksto be pried懦, 33 iliustr., 12 lent., 56 bibliografiniai 拧altiniai. Atskirai pridedami darbo priedai

This bachelor鈥檚 thesis examines the modification of the front suspension of a Nissan Silvia S13 by designing a double-wishbone front suspension for sports use. The thesis analyzes similar technical solutions, patents, and the main structural features of suspension systems. Based on the vehicle鈥檚 geometric data and measured suspension reference points, a kinematic scheme of the new suspension was developed. Front-view and side-view kinematic calculations were performed, and the main suspension points, wheel camber angle, steering axis position, and roll center height were determined. The suspension geometry was additionally verified in the VSusp environment. In the design part, the main suspension components were created in SolidWorks: the lower and upper control arms, wheel carrier, upper arm mounting bracket, and bushing components. Strength analysis of the main parts was carried out by evaluating stresses, displacements, and factors of safety. The obtained results showed that the designed components withstand the applied loads and are suitable for the initial design version. The thesis consists of 93 pages without appendices, 33 figures, 12 tables, and 56 references. Appendices are attached separately.

艩iame baigiamajame darbe pristatomas prototipin臈s 啪emagrind臈s puspriekab臈s, skirtos negabaritini懦 ir sunkiasvori懦 ma拧in懦 transportavimui, projektavimas ir k奴rimas. Sukurta puspriekab臈 turi 啪em膮 pakrovimo platform膮, keturi懦 a拧i懦 va啪iuokl臋, sustiprint膮 kakliuko (gooseneck) konstrukcij膮 ir hidrauli拧kai valdomas galines pakrovimo rampas. R臈mo ir ramp懦 konstrukciniai skai膷iavimai buvo atlikti pagal in啪inerinio projektavimo principus ir patikrinti naudojant programin臋 寞rang膮 SolidWorks Simulation. Hidraulin臈 k臈limo sistema buvo suprojektuota remiantis apskai膷iuotomis k臈limo j臈gomis, o sistemai parinkti rinkoje prieinami hidrauliniai komponentai. Darb膮 sudaro literat奴ros analiz臈, in啪ineriniai skai膷iavimai, 3D modeliavimas, baigtini懦 element懦 analiz臈 (FEA), hidraulin臈s sistemos projektavimas bei technini懦 br臈啪ini懦 ir surinkimo dokumentacijos parengimas. Technini懦 br臈啪ini懦 rinkin寞 sudaro: Bendrojo vaizdo surinkimo br臈啪inys (General View Assembly) Puspriekab臈s r臈mo suvirintos konstrukcijos surinkimo br臈啪inys (Trailer Frame Weldment Assembly) Hidraulin臈 schema (Hydraulic Scheme) Pakrovimo rampos suvirintos konstrukcijos surinkimo br臈啪inys (Loading Ramp Weldment Assembly) Galin臈s apsaugos nuo palindimo (rear underrun protection) suvirintos konstrukcijos surinkimo br臈啪inys 8 detali懦 br臈啪iniai (8 脳 Part Drawings)

This thesis presents the design and development of a prototype low-loader semi-trailer intended for transportation of oversized and heavy machinery. The developed trailer includes a low loading platform, four-axle running gear, reinforced gooseneck structure, and hydraulically operated rear loading ramps. Structural calculations of the frame and ramps were performed according to engineering design principles and verified using SolidWorks Simulation software. The hydraulic lifting system was designed based on calculated lifting forces and commercially available hydraulic components were selected for the developed system. The thesis includes literature analysis, engineering calculations, 3D modelling, finite element simulations, hydraulic system design, and preparation of technical drawings and assembly documentation. The technical drawings consist of: 鈥� General View Assembly 鈥� Trailer Frame Weldment Assembly 鈥� Hydraulic Scheme 鈥� Loading Ramp Weldment Assembly 鈥� Rear underrun protection weldment assembly 鈥� 8 x Part drawings