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Replica Design of L-40 "Meta Sokol " Airctaft - fuselage
Růžička, Miroslav ; Pešák, Miroslav (referee) ; Píštěk, Antonín (advisor)
This diploma thesis deals with the design of all-metal construction of fuselage of the replica L-40 Meta Sokol aircraft on the basis of CS-VLA regulation. As far as the aircraft is concerned, the thesis establishes the load of tail surfaces, landing gear and engine bed. Futhermore, it designs the construction of fuselage, tail landing gear, including the system of its retraction, wing-fuselage connection, engine bed and the primary design of cockpit. In the end, the thesis focuses on the fuselage production technology.
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Springing and Damping of Truck Cabin
Kroupa, Ondřej ; Vančura, Jan (referee) ; Blaťák, Ondřej (advisor)
This Diploma Theses, which can be included in the field of vehicle dynamics, explores the effect of suspension and damping of truck cabs for the safe ride and comfort. As the driver spends many hours in their vehicle, comfort is the most essential criterion. That is why we seek possible improvements which are offered by the sprung cab. The research part firstly analyses the individual elements of suspension and damping. The following chapter is devoted to the systems which are used nowadays in the construction of cabin suspension. Next there is the introduction to the theoretical production of a simplified computational model as well as the presentation of the possible evaluation of the achieved results. The following practical part deals with the actual shaping of the computational model in the Adams View software, which is based on a real vehicle, and was lent at the faculty. The model is then verified and compared with the existing state and the cab mounting concepts are tested on it. The effects of cab parameters on driving comfort and safe riding were tested on it as well. The last part focuses on the forming of the special Dakar computational model, on which optimization was performed according to the findings discussed in the previous chapter. Also, the appropriate configurations to the real-life testing were designed.
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Tower Cranes Models Review
Kuděla, Jan ; Škopán, Miroslav (referee) ; Pokorný, Přemysl (advisor)
This Bachelor thesis is focused on tower cranes with a working range over 40 meters. These cranes are composed of specific sections. In the first part of the thesis a more detailed description of tower cranes is presented. Next topic, that is being discussed, is three structural types of tower cranes with upper turntable bodies that are being made nowadays. In the overview, present world producers of tower cranes are listed. Companies like Liebherr, Potain, Linden Comansa, Kroll and Raimondi are described in more detail. Lastly, different models of tower cranes from leading producers in selected parameters are being compared.
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Technological Process of the Elevator Cab Production
Trojková, Ludmila ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
The aim of the thesis is to present the topic of the technological process of the elevator cab production. First, the work will deal with the introduction of the product, equipment, machinery and tools for an enterprise and which suppliers they are from. The second part will deal with the existing technological processes of enclosures made of stainless steel or glass. The last part will focus on the economic evaluation and the proposal to increase the efficiency of the production.
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Project of service lift
Kryška, Martin ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of the diploma thesis was the conceptual design of a service lift driven by the rigid chain. The introduction part focuses on a general description of lifts and existing issues. The following chapters contain the created lift design, construction of important design elements and functional calculations. In the conclusion, evaluation compared with hydraulic lifts and evaluation of speed of the lift, starting and braking to exact stop are performed.
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Design of the supporting frame of lift cage
Zapletal, Tomáš ; Komenda, Lukáš (referee) ; Dvořáček, Jiří (advisor)
This thesis is focusted in design of supporting frame of lift cage. Working load of frame is 1000 kg (13 people). Nominal speed is 2,5 m/s. First part is focusted in design of car frame. Car frame is made from steel bent profiles, connected each other with bolts. This work also contains final elemnt analysis of frame. Structure is analyzed by software Autodesk Inventor.
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Thermal model of vehicle cabin for HIL simulation
Chromiak, Michael ; Šolc, František (referee) ; Glos, Jan (advisor)
The air temperature inside the car's cab affects the driver as well as the entire crew. In particular, the driver of the car needs maximum thermal comfort, as it is one of the factors that can affect its attention. Before starting to solve this assignment, you will need to summarize the theoretical knowledge needed to properly solve the task. The main objective of this work will be the creation of a thermal model of a car cabin realized in the form of differential equations describing temperatures, which will be assembled in Simulink. The script in Matlab will be created to enter the individual car cabin parameters. From the perspective of the car crew, it is possible to use air conditioning or window openings to influence the air temperature while driving in the car. Therefore, the model enters the time flow of the air flow and temperature from the air conditioning as well as other parameters, including the outside temperature. From the entered parameters, the model then determines the temperature of the car cabin. The resulting model will need to be created so that it can be implemented into a microcontroller and prepare the necessary interface for HIL simulation.
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Design of agricultural cutting machine
Hráček, Petr ; Chorý, Tomáš (referee) ; Zvonek, Miroslav (advisor)
This diploma thesis should bring not only working machine into the branch of agricultural industry, but also new approach to design. Obviously, the contribution of technical innovations, which are required in this segment, is concerned, too. All knowledge and concepts come from the practise of this field. The project partly takes up the pre-diploma thesis called Vision of the agricultural cutting machine with container arrangement and shares some details of the concept as such. The technical part was solved during the winter term within the scope of the subject Machines and equipment. From this project will be adopted all bases of constructional innovations of agricultural machine concept.
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Assesment of the Thermal Environment in Vehicular Cabins
Fojtlín, Miloš ; Khoury, Roch El (referee) ; Havenith, George (referee) ; Jícha, Miroslav (advisor)
Ľudia žijúci vo vyspelých krajinách trávia väčšinu svojho života vo vnútorných prostrediach budov alebo dopravných prostriedkov. Z tohto dôvodu, záujem o výskum kvality vnútorných prostredím rastie, pričom hlavný dôraz je kladený na oblasti výskumu ľudského zdravia, produktivity a komfortu. Jedným z faktorov ovplyvňujúci kvalitu prostredí je ich tepelný aspekt, ktorý je najčastejšie popísaný teplotou vzduchu, radiačnou teplotou, vlhkosťou vzduchu a rýchlosťou prúdenia vzdu-chu. Zatiaľ čo tieto parametre je možné riadiť systémom pre vykurovanie, vetranie a klimatizáciu nezávisle na počasí, takéto zariadenia sa podieľajú na vysokej spotrebe energie a značnej uhlíkovej stope. V prostediach kabín áut a dopravných prostriedkov je riadenie parametrov tepelného prostredia komplikované z dôvodu ich asymetrickej a časovo premenlivej povahy. Táto situácia je obzvlášť kritická vo vozidlách na elektrický pohon s vlastnou batériou, kde je energia na úpravu vnútornej mikroklímy čerpaná na úkor dojazdu vozidla. Pre uvedené dôvody sa hľadajú nové, en-ergeticky účinnejšie spôsoby pre úpravu tepelných prostredí a zabezpečenia tepelného komfortu. Jedným z potenciálnych riešení sú zariadenia dodávajúce človeku teplo alebo chlad lokálne, ako napríklad vyhrievané a vetrané sedadlá a sálavé panely. Vzhľadom na to, že experimentálny výskum vnútorných prostredí je náročný s ohľadom na čas a potrebné vybavenie, trendy výskumu vplyvov takýchto zariadení na človeka smerujú k optimalizačným úlohám vo virtuálnych prostrediach pomocou modelov ľudksej termofyziológie a tepelného pocitu/komfortu. Avšak pre spoľahlivé výsledky modelovania sú potrebné presné vstupné parametre definujúce prostredie, odev, vplyv povrchov v kontakte s človekom (napríklad sedadlá) a pôsobenie systémov na lokálnu úpravu mikroklímy. Cieľom tejto dizertačnej práce je vytvorenie metodológie na hodnotenie tepelných prostredí v kabínach automobilov s ohľadom na pozíciu v sede a využitím technológii na lokálnu úpravu tepelných prostredí. Jedným z požiadavkov na takúto metodológiu je jej aplikovateľnosť vo virtuálnych ale aj reálnych prostrediach. V prípade hodnotenia reálnych prostredí, cieľom je vytvorenie demonštrátora, ktorý by bol využiteľný ako spätná väzba pre riadenie systémov pre úpravu mikroklímy na základe požadovaného tepeleného pocitu. Validita uvedenej metodológie bola demonštrovaná v typických podmienkach kabín automobilov (5–41 °C) a poznatky z tejto práce sú prenesiteľné do širokého spektra inžinierkych aplikácii. V oblasti osobnej dopravy a pracovných prostredí s vyššou tepelnou záťažou je táto metóda užitočná pre identifikáciu možných zdrojov diskomfortu. Navyše je táto metóda vhodná i pre rýchlo rastúci segment elektrických vozidiel, kde je možné sledovať tok energie potrebnej na dosiahnutie určitej úrovne komfortu a riešenie optimalizačných úloh za účelom úspory energie a predĺženie dojazdu. Obdobné aplikácie možno nájsť i v budovách a prostrediach s podobnými charakteristikami.
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